p-Toluenesulfonic acid

p-Toluenesulfonic acid (PTSA or pp-Toluenesulfonic acid) or tosylic acid (p-Toluenesulfonic acid) is an organic compound with the formula CH3C6H4SO3H. 
PTSA is a white solid that is soluble in water, alcohols, and other polar organic solvents.
The CH3C6H4SO2 group is known as the tosyl group and is often abbreviated as Ts or Tos. 
Most often, p-Toluenesulfonic acid refers to the monohydrate, p-Toluenesulfonic acid.H2O.

P-TOLUENE SULFONIC ACID (PTSA)

PTSA is a catalyst used in the esterification reactions.

EC / List no.: 203-180-0
CAS no.: 104-15-4
Mol. formula: C7H8O3S

Synonyms
Toluene sulfonic acid; 4-Methylbenzenesulfonic acid; 4-Toluenesulfonic acid; Benzenesulfonic acid, 4-methyl-; Benzenesulfonic acid, methyl-; Cyclophil P T S A; Cyzac 4040; Eltesol; K-Cure 040; K-Cure 1040; Kyselina p-toluenesulfonova [Czech]; Kyselina p-toluensulfonova [Czech]; Manro PTSA 65 E; Manro PTSA 65 H; Manro PTSA 65 LS; Methylbenzenesulfonic acid; Nacure 1040; TSA-HP; TSA-MH; Toluenesulfonic acid; Tosic acid; p-Methylbenzenesulfonic acid; p-Methylphenylsulfonic acid; p-Toluene sulfonate; p-Toluolenesulfonic acid; p-Tolylsulfonic acid; Toluene-4-sulphonic acid; ar-Toluenesulfonic acid (8CI); [ChemIDplus] UN2583; UN2585 (not more than 5% free sulfuric acid)

p-Toluenesulfonic acid (CAS 6192-52-5 Para-toluenesulfonic acid, PTSA or pTsOH) is an organic compound with the formula CH3C6H4SO3H. It is a white solid that is soluble in water, alcohols, and other polar organic solvents. P-Toluene sulfonic acid PTSA is colorless or white ,and needle shaped crystal or crystallne powder. It dissolves in water, ethanol, aether, benzene, has medium toxicity, and is pungent to the skin, eye. Melting point:  38 °C(anhy.)103.5 °C(mono.)Solubility: water soluble,H2O: 0.1 g/mL, clear.

p-Toluenesulfonic acid PTSA divides into PTSA monohydrate CAS 6192-52-5 and PTSA anhydrous CAS 104-15-4.


We offer Para Toluen Sulfonic Acid based Catalyst for Esterification Reactions.  All our PTSA products made in Turkey with highest quality.

We offer 2 grades: Crystal Solid and 70% Liquid

P.T.S.A. is used as a catalyst in various esterification reactions like biodiesel production. 
Additionally p-Toluenesulfonic acid is used as a hardener in urea - formaldehyde, melamine-formaldehyde and phenol - formaldehyde resins.

p-toluenesulfonic acid has been used in many organic preparations as a good solid catalyst


 
Application Areas:
In esterification reactions: As a dehydration catalyst.
Foundry: A hardening agent of furan resin which is used in sand casting.
Resin Systems: Hardener in urea-formaldehyde, melamine-formaldehyde and phenol-formaldehyde resins.

Also it is used as an intermediate of dye chemistry and specialized plasticizers.

Technical Properties:
Appearance: Pinky brown coloured crystal solid
P.T.S.A. Content: Min. 84.0 %
Free Sulphuric Acid: Max. 5.0 %
Free Toluene Content: 1.5 %
Iron Content: Max. 30 ppm
Isomeric Composition:  para-isomer 88-90 %
                            ortho-isomer 8-10 %
                            meta-isomer, approx. 2

Storage: Care should be taken while using and during storage because of strong acidity. After contact with skin, wash immediately with plenty of water. Keep in cool place. 1 year in original packaging.


p-Toluenesulfonic acid is used as a hardener agent of furan resin which is applied in foundry industry (Sand Casting)
p-Toluenesulfonic acid is used as an intermediate of dye chemistry,adhesives and specialized plasticizers.

P-TOLUENE SULFONIC ACID (PTSA) is used as a dehydration catalyst in esterifications where mineral acids give excess carbonization.
P-TOLUENE SULFONIC ACID (PTSA) is used as catalyst of many resin systems,such as resoles.
P-TOLUENE SULFONIC ACID (PTSA) is used as an anti-stress additive for electroplating baths.

1.PTSA is used as catalyst in the following processes :
-Cross linking reactions
-Ethyl Acetate, Butyl Acetate
-Plasticizer manufacturing DOP,DBP,DEP
-Unsymmetrical benzils
-Highly subsitutd piperidines
-1,3,5-Trisubstituted benzenes by trimerization of alkynes
-Triazoloquinazolinone and benzimidazoquinazolinone derivatives
-Selenated ketene dithioacetals
-Coating industry
-Electronic Polymers

2.PTSA is used as intermediate in
-Fine chemical manufacture
-Dye and pigment
-Metalworking
-Pharmaceutical intermediated ( tetra cycline drugs, antiviral)

3. PTSA is used as a curing agent in bulk quantites in thermosetting resin systems,varnishes, acrylic resins, foundry resins
4. PTSA is a neutralizing agent for acrylonitrile production
5. PTSA is used in paints, paper chemicals, API,detergents, cosmetics
6. PTSA can be converted to an anionic surfactant: Sodium PTSA ( for clear liquid detergent, luxury shampoo production)
7. PTSA is used in the performance additives production for paints and coatings
8. PTSA is used in the esterification / condensation/acetylation/ polymerization/alkylation / hydrolysis / dehydration reactions as a catalyst.
9. PTSA is also applicable for use in food packaging adhesives


Sources/Uses
P-TOLUENE SULFONIC ACID is used in the chemical industry as a catalyst; also used in the manufacturing of textile dyes, drugs, cleaning agents, polymers, and paints; [HSDB] Used in photography (color bleaching); [www.ci.tucson.az.us/arthazards/medium.html] Used as a catalyst (with applications including resins in foundry cores), as a curing agent for resins, as a descaling agent (industrial metal cleaners), in electroplating bathes, plastics, dyes, pharmaceutical intermediates, food packaging adhesives, and as a coupling and wetting agent; [EPA ChAMP]

Comments: Corrosive to skin; [Quick CPC] High inhalation exposure of dust may cause pulmonary edema; [ICSC] A severe skin and eye irritant; [CHRIS] Absorbs moisture from air forming a highly acidic liquid; Commercial grades are aqueous solutions (minimum 65% with a maximum of 0.8% free sulfuric acid) and solids (90% and 95% pure); Highly irritating or corrosive to skin and eyes of rabbits; Not a skin sensitizer in guinea pig maximization test; [IUCLID] Causes severe burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Harmful by ingestion and inhalation; [Integra MSDS]


  
Application

Organic synthetic intermediate
- Explosive 

- Resin 
- Polyether 
- Cosmetics 
- Tobacco 
- Food 

Catalyst and Stabilizer
- Esterification 
- Dewatering 
- Alkylation 
- De-alkyl 
- Aggregation 

Pharma industry
- Doxycycline 
- Dipyridamole 
- Naproxen 
- Amoxicillin  


Synonyms:
     benzenesulfonic acid, 4-methyl-
     benzenesulfonic acid, 4-methyl- (1:1:1)
4-    methyl benzene sulfonate
4-    methyl benzene sulfonic acid
para-    methyl benzene sulfonic acid
4-    methylbenzenesulfonic acid
p-    methylbenzenesulfonic acid
4-    methylbenzenesulphonic acid
     stepanate PTSA 65-E
     stepanate PTSA 65-LS
     stepanate PTSA-C
     stepanate PTSA-C99
4-    toluene sulfonate
para-    toluene sulfonate
     toluene sulfonic acid
p-    toluene sulfonic acid
para-    toluene sulfonic acid
     toluene-4-sulfonic acid
     toluene-para-sulfonate
p-    toluenesulfonic acid
para-    toluenesulfonic acid
p-    toluenesulphonic acid
p-    toluensulfonic acid
p-    toluolenesulfonic acid
para-    tolyl sulfonic acid


104-15-4 [RN]
203-180-0 [EINECS]
4-Methylbenzenesulfonic acid [ACD/IUPAC Name]
4-Methylbenzenesulphonic acid
4-Methylbenzolsulfonsäure [German] [ACD/IUPAC Name]
4-toluenesulfonic acid
70788-37-3 [RN]
Acide 4-méthylbenzènesulfonique [French] [ACD/IUPAC Name]
Benzenesulfonic acid, 4-methyl- [ACD/Index Name]
para-toluenesulfonic acid
p-Methylbenzenesulfonic Acid
P-Toluene Sulfonic acid
p-Toluenesulfonic acid [Wiki]
p-toluenesulphonic acid
p-toluensulfonic acid
p-Toluolenesulfonic acid
PTSA
p-TsOH [Formula]
Toluene sulfonic acid
Toluene-4-sulfonic acid
Toluene-4-sulphonic acid
Toluenesulfonic acid
tosic acid
TsOH [Formula]
236-576-7 [EINECS]
3233-58-7 [RN]
4-11-00-00241 (Beilstein Handbook Reference) [Beilstein]
472690 [Beilstein]
4-methylbenzene-1-sulfonic acid
4-methyl-benzenesulfonic acid
4-methylbenzensulphonic acid
4-Toluene sulfonic acid
5-Benzyl-1H-1,2,4-triazol-3-amine
85536-14-7 [RN]
Benzenesulfonic acid, methyl-
dodecylbenzene sulfonic acid
Eltesol
http:////www.amadischem.com/proen/507670/
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27849
K-Cure 040
Kyselina p-toluenesulfonova
Kyselina p-toluensulfonova [Czech]
Kyselina p-toluensulfonova
Manro PTSA 65 E
Manro PTSA 65 H
Manro PTSA 65 LS
Methylbenzenesulfonic acid
MFCD00064387 [MDL number]
MFCD00142137 [MDL number]
MFCD02683442 [MDL number]
Para Toluene Sulfonic Acid
PARA-TOLUENE SULFONATE
paratoluene sulfonic acid
para-toluene sulfonic acid
paratoluenesulfonic acid
para-toluenesulphonic acid
para-toluensulfonic acid
p-cresol sulfate
p-Methyl-benzenesulfonic acid
p-Methylbenzenesulfonic Acid (en)
p-methylphenylsulfonic acid
P-Toluene Sulfonic acid(monohydrate)
p-Toluene-sulfonic acid
p-toluenesulfonicacid
p-tolyl sulfonic acid
p-tolylsulfonic acid
Toluen-4-sulfonsaeure
toluene-4-sulfonate
toluene-p-sulfonic acid
Toluenesulfonic acid (VAN)
Toluenesulphonic acid
TOS
tosylate [Wiki]
tosylic acid
TSA-HP
TSA-MH [Trade name]
TSU
WLN: WSQR D1
对甲苯磺酸 [Chinese]

Preferred IUPAC name
4-Methylbenzene-1-sulfonic acid
Other names
4-Methylbenzenesulfonic acid
Tosylic acid
tosic acid
PTSA
Identifiers
CAS Number    
104-15-4 
6192-52-5 (monohydrate) 

PTSA is a crystalline p-toluene sulfonic acid used as an intermediate in fine chemical manufacture, dye/pigment manufacture metal working and as a catalyst for crosslinking reactions.

Chemical Description
p-TOLUENE SULPHONIC ACID MONOHYDRATE CRYSTALS
Chemical Group
P-Toluene Sulfonic Acid

Toluene sulfonic acid, liquid, with more than 5% free sulfuric acid appears as colorless to black solid. Odorless or nearly odorless.

Toluene-4-sulfonic acid is an arenesulfonic acid that is benzenesulfonic acid in which the hydrogen at position 4 is replaced by a methyl group. It is a member of toluenes and an arenesulfonic acid. It is a conjugate acid of a toluene-4-sulfonate.

P-TOLUENESULFONIC ACID
4-Methylbenzenesulfonic acid
104-15-4
p-Toluenesulphonic acid
4-Toluenesulfonic acid
Toluene-4-sulfonic acid
Tosic acid
p-Tolylsulfonic acid
Benzenesulfonic acid, 4-methyl-
p-Methylbenzenesulfonic acid
Tosylic acid
p-Toluenesulfonate
Eltesol
p-Methylphenylsulfonic acid
Cyclophil P T S A
ar-Toluenesulfonic acid
p-Toluolenesulfonic acid
P-Toluene Sulfonic acid
PARA-TOLUENE SULFONATE
Benzenesulfonic acid, methyl-
Methylbenzenesulfonic acid
Toluene-4-sulphonic acid
PTSA
Nacure 1040
Cyzac 4040
p-Toluene sulfonate
Kyselina p-toluenesulfonova
Manro PTSA 65 E
Manro PTSA 65 H
TSA-HP
TSA-MH
Manro PTSA 65 LS
Kyselina p-toluensulfonova
Toluene-p-sulfonate
K-Cure 1040
Toluenesulfonic acid (VAN)
p-toluene sulphonic acid
para-toluenesulfonic acid
HSDB 2026
UNII-QGV5ZG5741
NSC 167068
p-toluensulfonic acid
2(Or 4)-toluenesulphonic acid
Toluen-4-sulfonsaeure
toluene-p-sulfonic acid
p-Toluene-sulfonic acid
4-Toluene sulfonic acid
para-toluenesulphonic acid
paratoluene sulphonic acid
para toluene sulfonic acid
CHEMBL541253
QGV5ZG5741
4-TOLUENE-SULFONIC ACID
ar-Toluenesulfonic acid (8CI)
4-methylbenzene-1-sulfonic acid
CHEBI:27849
P-Toluene Sulfonic acid(monohydrate)
TsOH
WLN: WSQR D1
p-TSA
K-Cure 040
TSU
Kyselina p-toluensulfonova [Czech]
p-Toluenesulfonic acid, pure, 12% in acetic acid
Kyselina p-toluenesulfonova [Czech]
EINECS 203-180-0
BRN 0472690
TosicAcid
4-sulphotoluene
AI3-26478
pTsOH
TosOH
Tosic acid p-TSA
p-toluenesulfonicacid
p-TsOH
Tos-OH
p-toluenesufonic acid
p-toluene sulfonicacid
p-toluene-sulfonicacid
p-toluensulphonic acid
paratoluensulfonic acid
Ts-OH
p-toluen sulfonic acid
p-toluenesuiphonic acid
p-toluenylsulfonic acid
paratoluenesulfonic acid
PTS ACID
4-toluenesulphonic acid
p -toluenesulfonic acid
p- toluenesulfonic acid
p-tolu-enesulfonic acid
p-toluyl sulphonic acid
PubChem16860
toluene p-sulfonic acid
para-toluensulfonic acid
rho-toluenesulfonic acid
paratoluenesulphonic acid
p-toluene-sulphonic acid
toluene 4-sulfonic acid
toluene p-sulphonic acid
toluene-p-sulphonic acid
para toluenesulfonic acid
paratoluene sulfonic acid
paratoluene-sulfonic acid
SCHEMBL34
4-toluene sulphonic acid
4-toluene-sulphonic acid
rho-toluene sulfonic acid
para toluenesulphonic acid
para-toluene sulfonic acid
para-toluene-sulfonic acid
4methylbenzenesulfonic acid
DSSTox_CID_6701
4-methylphenylsulfonic acid
para toluene sulphonic acid
para-toluene sulphonic acid
EC 203-180-0
4-methylphenylsulphonic acid
ACMC-1C4C9
DSSTox_RID_78188
NCIOpen2_002932
NCIOpen2_003096
4-methylbenzenesulphonic acid
DSSTox_GSID_26701
4-methyl-benzenesulfonic acid
4-methylbenzene sulfonic acid
4-methylbenzene-sulfonic acid
4-11-00-00241 (Beilstein Handbook Reference)
70788-37-3
4-methyl benzene sulfonic acid
4-methyl-benzene sulphonic acid
4-methyl-benzene-sulphonic acid
DTXSID0026701
NSC2167
4-Toluenesulfinic acid sodium salt


Paratoluene Sulfonic Acid (PTSA)
         

Molecular formula                              ::    C7H8O3S.H2O
Molecular weight                   ::     190.2,
CAS NO     ::    6192-52-5. (Monohydrate  material) 104-15-4    (Hydrous Material / soln.)
Synonyms                             ::    Tosic Acid Monohydrate; 
Methyl Benzene Sulphonic Acid  Monohydrate;  
Toluene Sulphonic Acid Monohydrate   
4 Methyl Benzene Sulphonic Acid
PTSA Application       ::          

PTSA is comparable in strength to mineral acids such as Sulphuric acid, but are especially suitable for organic reactions where an inorganic, mineral acid could cause charring, oxidation, or an unwanted chemical reaction.
It is most useful as acid-catalyst reaction such as esterification /condensation /acetylation / polymerization/ alkylation’s/ hydrolysis /dehydration. 

PTSA is used as a hardening agent of furan resin which is applied in foundry Industry (Sand Casting)
PTSA finds application in Plasticizers industries mainly for DEP/ DOP/ DBP – As esterification catalyst 
PTSA is also used as curing agent for many resin system such as mino/phenolic/acrylic resins/resoles / epoxies / amino-Plastics and furniture lacquers
PTSA is an anti-stress additive for electroplating baths additive, plastics, coatings, dyes, pharmaceutical intermediates, hydrotrope, coupling agent and as a wetting agent
PTSA is also applicable for use in food packaging adhesives

USES OF PTSA
As intermediate of dye chemistry 
In Butyl Acrylate manufacturing – As catalyst 
In Pharmaceutical industries is used for manufacturing of below product – As catalyst. 
CIPROFLOXACIN , Persantin, Naproxen DOXYCYCLIN SULPHAMETHAXAZOLE 
And produce the intermediates of Amoxicillin , Cefadroxil 

As with other sulfonic acids, p-Toluenesulfonic acid is a strong organic acid. 
p-Toluenesulfonic acid is about one million times stronger than benzoic acid.
p-Toluenesulfonic acid is one of the few strong acids that is solid and, hence, conveniently weighed.


Preparation and handling
p-Toluenesulfonic acid is prepared on an industrial scale by the sulfonation of toluene. 
P-Toluenesulfonic acid is hygroscopic and hydrates readily. Common impurities include benzenesulfonic acid and sulfuric acid. p-Toluenesulfonic acid monohydrate contains crystalline water as well as water as an impurity. To estimate the total moisture present as impurity, the Karl Fischer method is used.[citation needed] Impurities can be removed by recrystallization from its concentrated aqueous solution followed by azeotropic drying with toluene.[2]

p-Toluenesulfonic acid finds use in organic synthesis as an "organic-soluble" acid catalyst. Examples of uses include:

Acetalization of an aldehyde.
Esterification of carboxylic acids.
Transesterification of an ester
Tosylates
Alkyl tosylates are alkylating agents because tosylate is electron-withdrawing, which makes the tosylate anion a good leaving group. 
Tosylate is a pseudohalide. Toluenesulfonate esters undergo nucleophilic attack or elimination. Reduction of tosylate esters gives the hydrocarbon. 
Thus, tosylation followed by reduction allows for the deoxygenation of alcohols.

In a famous and illustrative use of tosylate, 2-norbornyl cation was displaced from the 7-norbornenyl tosylate. 
The elimination occurs 1011 faster than the solvolysis of anti-7-norbornyl p-toluenesulfonate.


Structures of the 7-norbornenyl cation with p-orbital stabilization.
Tosylates are also protecting group for alcohols. They are prepared by combining the alcohol with 4-toluenesulfonyl chloride, usually in an aprotic solvent, often pyridine.[10]

Reactions
p-Toluenesulfonic acid may be converted to p-toluenesulfonic anhydride by heating with phosphorus pentoxide.
When heated with acid and water, p-Toluenesulfonic acid undergoes hydrolysis to toluene:
CH3C6H4SO3H + H2O → C6H5CH3 + H2SO4
This reaction is general for aryl sulfonic acids.

PTSA, Para Toluene Sulfonic Acid

P-toluenesulfonic acid is a commonly used acid catalyst in organic synthesis. 
Para Toluene Sulfonic Acid is neutralized with sodium hydroxide to prepare sodium p-toluenesulfonate, and then reacted with phosphorus pentachloride to prepare p-toluenesulfonyl chloride. 
The latter is used in nucleophilic substitution reactions and also as a protecting group for alcoholic hydroxyl groups.

p-CH3C6H4SO3Na + PCl5 → p-CH3C6H4SO2Cl

P-toluenesulfonic acid can be mixed with dehydrating agent phosphorus pentoxide to generate p-toluenesulfonic anhydride.
P-toluenesulfonic acid is also used to catalyze the esterification and transesterification of dihydropyran protecting groups on alcohols, carboxylic acids; make aldehydes form acetals; as catalysts for hydrolyzing proteins and glycoproteins; and can be used to synthesize dihydropyrimidines 
The Biginelli reaction and the metal nitrate are selectively nitrated in the ortho position of the phenolic hydroxyl group in phenol and substituted phenol.

p-Toluenesulfonic acid
p-toluenesulphonic acid
p-toluenesulphonic acid (containing a maximum of 5 % H2SO4)
p-toluenesulphonic acid (containing a maximum of 5 % H2SO4)
p-toluenesulphonic acid, (containing more than 5 % H2SO4)

Toluene-4-sulphonic acid
toluene-4-sulphonic acid
Translated names
''π-τολουολοσουλφονικό οξύ (που περιέχει μέχρι και 5 % H2SO4) (el)

4-methylbenzensulfonová kyselina, obsah maximálně 5 % H2SO4 (cs)
4-metylbenzensulfonsyra, innehållande högst 5% H2SO4 (sv)
acid p-toluensulfonic(continut maxim de 5% H2SO4) (ro)
acide p-toluènesulfonique (contenant au maximum 5 % de H2SO4) (fr)
acido p-toluensolfonico (contenente non più del 5 % H2SO4) (it)
kwas 4-metylobenzenosulfonowy (zawierający maksymalnie 5% H2SO4) (pl)
kwas p-toluenosulfonowy (zawierający maksymalnie 5% H2SO4) (pl)
kyselina 4-metylbenzénsulfónová (s obsahom maximálne 5 % H2SO4) (sk)
p-Tolueenisulfonihappo, joka sisältää <5% rikkihappoa (fi)
p-tolueensulfonzuur (met maximum 5 % H2SO4) (nl)
p-tolueensulfoonhape, mis sisaldab <5% väävelhapet (et)
p-toluensulfonrūgštis (sudėtyje turinti maksimaliai 5 % sieros rūgšties) (lt)
p-toluensulfonska kiselina (sadrži maksimum 5 % H2SO4) (hr)
p-toluensulfonska kislina (z največ 5% žveplove kisline) (sl)
p-toluensulfonsyra, innehållande högst 5% H2SO4 (sv)
p-toluensulfonsyre (indeholdende højst 5 % H2SO4) (da)
p-toluensulfonsyre, med maks. 5 % H2SO4 (no)
p-Toluolsulfonsäure (mit höchstens 5 % H2SO4) (de)
p-toluolsulfoskābe, kas satur ne vairāk kā 5% sērskābes (lv)
p-тoлуенсулфонова киселина (съдържаща максимално 5% H2SO4) (bg)
toluol-4-szulfonsav (kénsav tartalom max. 5%) (hu)
ácido p-toluenossulfónico (contendo no máximo 5 % H2SO4) (pt)
ácido p-toluenosulfónico (con un contenido máximo de 5 % de H2SO4) (es)

CAS names
Benzenesulfonic acid, 4-methyl-
IUPAC names
4-methyl benzenesulphonic acid

4-methylbenzene-1-sulfonic acid
4-methylbenzene-1-sulfonic acid hydrate
4-Methylbenzenesulfonic acid
4-methylbenzenesulfonic acid
4-methylbenzenesulfonic acid hydrate
4-methylbenzenesulfonic acid hydrate
4-Methylbenzenesulfonic acid monohydrate
4-Methylbenzolsulfonsäure
4-Toluenesulfonic acid monohydrate
acide para toluene sulfonique
acido 4-metilbenzensulfonico
Benzenesulfonic acid, 4-methyl-
Benzenesulfonic acid, 4-methyl-, monohydrate
p-Toluenesulfonic acid
p-Toluenesulfonic acid
p-Toluenesulfonic Acid Monohydrate
p-Toluenesulfonic acid, Tosylic acid, Tosic acid, PTSA
p-Toluenesulphonic acid
p-toluenesulphonic acid
p-Toluenesulphonic acid
p-toluenesulphonic acid (containing a maximum of 5 % H2SO4)
p-toluenesulphonic acid hydrate
p-toluenesulphonic acid, containing a maximum of 5% H2SO4
Para Toluene Sulfonic Acid (PTSA)
Reaction mass of sulphuric acid and 7732-18-5
toluen 4-sulfonová kyselina
Toluene sulphonic acid
toluene-4-silphonic acid
TOLUENE-4-SULPHONIC ACID
Toluene-4-sulphonic acid
toluene-4-sulphonic acid
toluene-4-sulphonic acid
TOLUENESULFONIC ACID
Toluenesulfonic acid, p-
Toluol-4-sulfonsäure
Toluol-4-sulfonsäure Monohydrat
TSA
ácido 4-metilbenzenosulfónico

Trade names
4-Methylbenzenesulfonic Acid
4-Methylbenzolsulfonsaeure, Monohydrat
4-Methylbenzolsulfonsäure
4-Toluenesulfonic acid
Acide benzènesulfonique, 4-méthyl-
Acide benzènesulfonique, 4-méthyl- (< 5 % acide sulfurique)
Acide toluene-4-sulfonique
acido tolueno-4-sulfonico
Benzenesulfonic acid, 4-methyl-
Benzenesulfonic acid, 4-methyl- (9CI)
Benzolsulfonsaeure, 4-methyl
Benzolsulfonsäure, 4-Methyl-
Cyzac 4040
Eltesol TA
Eltesol TA 65
Eltesol TA/E
Eltesol TA/F
Eltesol TA/H
Eltesol TA/K
Eltesol TA96
Eltesol TSX
Eltesol TSX/A
Eltesol TSX/SF
K-Cure 1040
LAS 4-methyl, p-
LAS 4-methyl, p- (max 5 % sulfuric acid); <5% Schwefelsaeure
Manro PTSA/95
Manro PTSA/C
MANRO PTSA/C; 60-100% Active Matter; active substance
Manro PTSA/E
Manro PTSA/LG
Manro PTSA/LS
Methylbenzolsulfonsäure, 4-
Nacure 1040
p-Methylbenzenesulfonic acid
p-Methylphenylsulfonic acid
p-Toluene sulfonate
p-TOLUENE SULFONIC ACID
p-Toluene Sulfonic Acid Monohydrat
p-Toluenesulfonic acid
p-Toluenesulphonic acid
p-Toluolsulfonsaeure
p-Toluolsulfonsäure
p-Toluolsulfonsäure in ca.65%iger wässriger Lsg.; 65% Active Matter; active substance
p-Tolylsulfonic acid
P.T.S.A
PARA-TOLUENESULFONIC ACID CC5U
PARATOLUOLSULFONSAEURE
PTSA 70
Reworyl T 65
Stepanate PTSA-C; 60-100% Active Matter; active substance
Sulframin TX
Toluene Sulfonic Acid
Toluene sulfonic acid (INCI)
Toluene sulphonic acid (65% in water) TL65LS; 65% Active Matter; active substance
toluene-4-sulphonic acid
Toluenesulfonic acid
TOLUENESULFONIC ACID, HI-PARA
Toluenesulfonic acid, p-
Toluenesulfonic acid, p- 65%; 65% Active Matter; active substance
Toluensulfonic acid; 95% Active Matter; active substance
Toluol-4-sulfonsaeure
Toluol-4-sulfonsäure
Toluol-p-sulfonsäure
Toluolsulfo säure, p- 65 %; 65% Active Matter; active substance
Toluolsulfo säure, para
Toluolsulfonic acid, para
Tosic acid
TSA
Wilconate TX Acid
Witco TX Acid

4-Methylbenzenesulfonic acid
4-Methylbenzene-1-sulfonic acid
Benzenesulfonic acid, 4-methyl-
104-15-4
Benzenesulfonic acid, 4-methyl-
4-11-00-00241
4-TOLUENESULFONIC ACID
Acide toluene-4-sulfonique
acido tolueno-4-sulfonico
Benzenesulfonic acid, 4-methyl
K-Cure 1040
Nacure 1040
NSC 167068
NSC 2167
PARA TOLUENE SULFONIC ACID
PARA-TOULENESULFONIC ACID
p-Methylbenzenesulfonic acid
p-Methylphenylsulfonic acid
P-TOLUENE SULFONIC ACID
p-Toluenesulfonic acid
p-Toluenesulphonic acid
P-TOLUOLSULFONSAEURE
p-Tolylsulfonic acid
p-Tosic acid
Taycatox 300
Toluene sulfonate hydrochloride
TOLUENE SULFONIC ACID
Toluene Sulphonic Acid
toluene-4-sulphonic acid
Toluenesulfonic acid
TOLUENESULFONIC ACID, P-
Toluensulfonic acid
Toluol-4-sulfonsaure
Tosic acid
UN 2583
UN 2584
UN 2585
Benzenesulfonic acid, methyl-
BRN 0472690
Cyclophil P T S A
EINECS 203-180-0
Eltesol
Manro PTSA 65 E
Manro PTSA 65 H
Manro PTSA 65 LS
p-Toluolenesulfonic acid
Kyselina p-toluenesulfonova
Kyselina p-toluensulfonova
UNII-QGV5ZG5741
Toluen-4-sulfonsaeure
Tosylate
toluene-4-sulfonic acid
tosylic acid
toluene-4-sulfonic acid
25231-46-3
633305-48-3
100901-72-2
114213-96-6
126033-27-0
128739-80-0
144647-92-7
156627-46-2
185568-48-3
210357-81-6
227313-49-7
369371-25-5
402-47-1
51506-29-7
613262-31-0
1023356-14-0

1. P-Toluenesulfonic acid is used as catalyst in the following processes :
-Cross linking reactions
-Ethyl Acetate, Butyl Acetate
-Plasticizer manufacturing DOP,DBP,DEP
-Unsymmetrical benzils
-Highly subsitutd piperidines
-1,3,5-Trisubstituted benzenes by trimerization of alkynes
-Triazoloquinazolinone and benzimidazoquinazolinone derivatives
-Selenated ketene dithioacetals
-Coating industry
-Electronic Polymers

2. P-Toluenesulfonic acidis used as intermediate in
-Fine chemical manufacture
-Dye and pigment
-Metalworking
-Pharmaceutical intermediated ( tetra cycline drugs, antiviral)

3. P-Toluenesulfonic acid is used as a curing agent in bulk quantites in thermosetting resin systems,varnishes, acrylic resins, foundry resins
4. P-Toluenesulfonic acid is a neutralizing agent for acrylonitrile production
5. P-Toluenesulfonic acid is used in paints, paper chemicals, API,detergents, cosmetics
6. P-Toluenesulfonic acid can be converted to an anionic surfactant: Sodium PTSA ( for clear liquid detergent, luxury shampoo production)
7. P-Toluenesulfonic acid is used in the performance additives production for paints and coatings
8. P-Toluenesulfonic acid is used in the esterification / condensation/acetylation/ polymerization/alkylation / hydrolysis / dehydration reactions as a catalyst.


Other names: Ar-Toluenesulfonic acid; p-Methylbenzenesulfonic acid; p-Methylphenylsulfonic acid; p-Toluenesulfonate; p-Toluenesulfonic acid; p-Toluolenesulfonic acid; p-Tolylsulfonic acid; Benzenesulfonic acid, methyl-; Cyclophil P T S A; Eltesol; Methylbenzenesulfonic acid; Toluene-p-sulfonate; Toluene-4-sulfonic acid; Toluenesulfonic acid; Tosic acid; 4-Methylbenzenesulfonic acid; 4-Toluenesulfonic acid; p-Toluenesulphonic acid; Kyselina p-toluenesulfonova; Kyselina p-toluensulfonova; Manro PTSA 65 E; Manro PTSA 65 H; Manro PTSA 65 LS; Tsa-hp; Tsa-mh; PTSA; Tosylic acid; Cyzac 4040; K-Cure 1040; NSC 167068; Nacure 1040; toluene-4-sulphonic acid


Synonyms: Benzenesulfonic acid, 4-methyl-, monohydrate; Toluene, 4-sulfonic acid, monohydrate; PTSA monohydrate

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