MERGAL K9N


MERGAL K9N is an effective wet-state preservative designed to inhibit the growth of bacteria, yeast and fungi in aqueous systems. 
MERGAL K9N provides stable & broad-spectrum liquid preservative at cost-effective use levels.

Mergal K9N is a Preservative to avoid deterioration and degradation of aqueous systems caused by bacteria, fungi and yeast

Technical Datasheet | Supplied by Troy Corporation
Mergal K9N by Troy Corporation is a formaldehydre-free, VOC-free blend of 5-chloro-N-methylisothiazolinone and N-methylisothiazolinone. 
Mergal K9N is used as an in-can preservative, a sanitizing agent, a bactericide, a fungicide and an algaecide for inside applications in adhesives and aqueous systems such as acrylate-sealants. Offers balanced, broad action spectrum against bacteria, yeasts, mold fungus and algae and compatibility with aqueous polymer emulsions such as pure acrylic, styrene acrylic, polyvinyl acetate and copolymers, polyvinyl alcohol, vinyl acetate-ethylene pressure polymers and casein. Recommended dosage level of Mergal K9N is 0.02-0.2%.

Mergal K9N is a formaldehyde-free, VOC-free, fast-acting, effective, liquid in-can preservative with a broad-spectrum of activity against bacteria, yeasts and molds, designed for protection of aqueous systems. It provides an excellent headspace protection. Intended for use in aqueous products with a range of pH 3-9.

Mergal K9N Fast acting, broad spectrum, wet-state preservative for aqueous systems as a post treatment. 
The product is a broad‐spectrum, wet-state preservative which prevents deterioration and degradation of aqueous systems caused by bacteria, fungi and yeast. 
The product is useful for the in‐can preservation of various water born end‐use products, such as paints, stuccos, pigment dispersions, inks and pigment slurries. 
Mergal K9N is especially useful to boost efficacy in combination wet-state preservatives; 
The product is suitable for recovery of microbial spoiled material. 
The product performs best under the following conditions: 
• pHs between 3 -9
• Temperatures up to 60°C 
• In the absence of reducing agents 
• Free of VOC 
• Free of Formaldehyd
• Fast acting properties 
• Cost effective performance 
• Various clearances for indirect food contact applications 

These values are typical properties of the product; they are not to be considered product specifications. 

Appearance: Colorless to yellow liquid Specific Gravity, 20°C [g/ml]: 1.03 
pH (as is): 4.5 
Miscible with water in any proportion 
CMIT/MIT (3:1): 1.5% 

Suggested Application Levels Suggested use levels are based on laboratory and field evaluations and are typical for the applications indicated. 
The actual level required for your system must be determined empirically. 
Dosage levels are influenced by substrate conditions. 
Suggested use levels are reported as percentage of the product “as is”. 
Paints, coatings, stuccos Pigment dispersions Starch‐bases adhesives (in‐use) 
Other applications 
0.1-0.35%
0.1-0.35% 
0.1-.35% 
0.1-0.35% 
Application/ Use Physical Properties Highlights
 Active Ingredient Function/ Activity 
Clearances; FDA CFR 175.105; FDA CFR 175.300; FDA CFR 176.170; FDA CFR 176.180; FDA CFR 176.300; BfR XIV; BfR XXXVI; TROY’s Microbiological Laboratory is available to provide additional assistance in determining the proper level of protection needed for your system. 
The product should be added with good agitation or mixing and can be added at any stage of the production process. 
For best results and to achieve a homogeneous distribution, Mergal K9N should be added preferably as early in the production process as possible.

It is advised to check compatibility in the development of new products. 
For further assistance, please contact your ATAMAN CHEMICALS representative. 
VOC content according to EPA Test Method 24: 0 % VOC content according to EU directive 1999/13/EC: 0 % VOC content according to EU directive 2004/42/EC (DecoPaint Directive): 0 % Toxicity Acute Oral Effects: LD50 (oral, Rat) – 3522 mg/kg. 
Acute Skin Effects: LD50 (dermal, Rabbit) > 2000 mg/kg. 
Severe irritant and corrosive. This product is a skin sensitizer. 
Acute Eye Effects: Severe eye irritant, corrosive. 
Acute Inhalation Effects: LC50 (Rat, 4hr) - 490 mg/m3. Subchronic Effects and Other Studies: No data available. 
For additional information on active ingredients, contact Troy Chemical Corporation. 
Ecotoxicity This product is toxic to fish. 
Do not apply directly to wetlands. Do not contaminate water when disposing of equipment washwaters. 
Data on the active ingredient, 5-chloro-2-methyl-4-isothiazolin-3-one/2-methyl-4-isothiazolin-3-one, is as follows: LC50 (Bluegill sunfish, 96 hr flow-through): - 280 μg/L. LC50 (Rainbow trout, 96 hr flow-through): - 190 μg/L. EC50 (Daphnia magna, 48 hr): - 160 μg/L. Environmental Fate This product is a pesticide and may cause adverse environmental impact. 
Data on the active ingredient, 5-chloro-2-methyl-4-isothiazolin-3-one/2-methyl-4-isothiazolin-3-one, is as follows: Octanol/water partition coefficient: LogPow = 0.401 Biodegradation (aquatic metabolism): t ½ anaerobic – 4.8 hr. Biodegradation (aquatic metabolism): t ½ aerobic – 17.3 hr. Formulating Considerations Regulatory Considerations Environmental Effects 
This product, or its components, are listed on, or are exempt from: Country Agency Registration Number and Sections United States TSCA United States EPA 5383-103 Canada DSL Europe EINECS Australia AICS Korea ECL Serial # Japan ENCS/MITI # 9-1845 Philippines PICCS China IECSC New Zealand NZIOC 

Corrosive: Causes irreversible eye damage and skin burns. Do not get in eyes, on skin or clothing. 
May be fatal if inhaled. 
Harmful if swallowed or absorbed through skin. 
This product may cause skin sensitization reactions in some people. Do not breathe vapor or spray mist. Wear goggles or face shield. 
Wear a mask or pesticide respirator approved by the National Institute for Occupational Safety and Health. 

EU Regulations: 
C – Corrosive 
N – Dangerous for the environment 
R34 – Causes burns. 
R43 – May cause sensitization by skin contact. 
R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment 

Avoid contact with skin, eyes or clothing. Avoid breathing vapor or mist. Wash thoroughly after handling. 
Keep container tightly closed. Use only with adequate ventilation. Store away from incompatible substances in a cool, dry, ventilated area. 
Do not contaminate water, food or feed by storage or disposal. 
Observe all Federal, State, and Local regulations when storing or disposing of this substance. 
Shelf Life: 24 months after date of manufacture. 

Emergency Overview: Mergal® K9N is a colorless to yellow liquid with a mild characteristic odor. 
Corrosive liquid. 
EPA Signal Word – DANGER. 
May cause severe eye irritation and irreversible corneal damage. 
May cause severe skin irritation and burns. 
May cause allergic skin reactions Skin effects may be delayed for hours. 
May be harmful if swallowed. 
May cause respiratory irritation. This material is toxic to fish. Avoid contamination of streams and sewers. 
Chemical Inventories Labeling Handling, Storage, Health And Safety No warranty is made, whether expressed or implied, including warranties of merchantability or of fitness for a particular purpose for these products.
 
No statements or recommendations contained herein are to be construed as inducements to infringe any relevant patent, now or hereafter in existence. 
Under no circumstances shall TROY Corporation or ATAMAN CHEMICALS be liable for incidental, consequential or other damages from alleged negligence, breach of warranty, strict liability or any other theory arising out of the use or handling of these products. 
The sole liability of TROY Corporation and its affiliates for any claims arising out of the manufacture, use or sale of its product shall be for the buyer’s purchase price. 
Neither Troy Corporation nor ATAMAN CHEMICALS assumes any obligation or liability for the information in this document or the results obtained. 
The information in this document is provided without warranty and is to be utilized by customers of the products at the customer's sole risk. 
Customers should conduct their own tests in actual use conditions before commercial use of the products.


Mergal K9N
Mergal K 9 N by Troy Corporation is a formaldehydre-free, VOC-free blend of 5-chloro-Nmethylisothiazolinone and N-methylisothiazolinone. 
Mergal K 9 N is used as an in-can preservative, a sanitizing agent, a bactericide, a fungicide and an algaecide for inside applications in adhesives and aqueous systems such as acrylate-sealants. 
Mergal K 9 N offers balanced, broad action spectrum against bacteria, yeasts, mold fungus and algae and compatibility with aqueous polymer emulsions such as pure acrylic, styrene acrylic, polyvinyl acetate and copolymers, polyvinyl alcohol, vinyl acetate-ethylene pressure polymers and casein. 
Recommended dosage level of Mergal K 9 N is 0.02-0.2%.

Product Type
Preservatives / Biocides / Fungicides

Chemical Composition
Blend of 5-chloro-N-methylisothiazolinone and N-methylisothiazolinone

Physical Form
Liquid
Product Status

COMMERCIAL
Applications/ Recommended for
Adhesives > Water-based
Sealants
Polymers > Polyvinyl Alcohols (PVOH)
Polymers > Polyvinyl Acetate Emulsions & Derivatives (PVAc)
Polymers > Acrylics & Acrylic Copolymers

Mergal K9 N Properties
pH 3 – 9
Heat Stability < 60 °C
Density 1.03 g/ml
Flash Point > 100 °C


TROY MERGAL K9N Industrial Microbiocide for Adhesives, Air Washer Systems, Building Materials, Brewery Pasteurizer and Can Warmer Systems, Concrete Admixes, Conveyor Lubricants, Emulsions, Foam Control Products, Industrial Process Water Systems, Pigment Dispersions, Paints and Coatings, Metal Working, Hydraulic Fluids, Oil Field Injection Waters, Fuels, Recirculating Water Cooling Towers and Closed Loop Water Systems, Ultra Filtration Units, Household, Industrial and Janitorial Cleaning Products Including Floor Cleaners, Waxes, Polishes, and Surface Cleaners, Shampoos and Pre-spotters Laundry Additives including Liquid Laundry Detergents, Fabric Softeners, Silicone Emulsions, Surfactants and Surfactants for Soap and Stain Removers. 
ACTIVE INGREDIENT: 
5 Chloro-2-Methyl-4-isothiazolin-3-one 
2-Methyl-4-isothiazolin-3-one 


DIRECTIONS FOR USE 
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. 

*Air Washer Systems: For use only in industrial air washing systems that maintain effective mist eliminating components. 
Add 0.3 to 7.5 lb. of TROY MERGAL K9N to 1000 gallons of water (35 to 886 ppm TROY MERGAL K9N) in the air washer sump, or chill water sump to ensure uniform mixing, for the control of bacteria, fungi and algae. 

A repeat treatment may be needed depending on the severity of contamination. 

*Brewery Pasteurizer and Can Warmer Systems: Add 0.3 to 1.86 lb. of TROY MERGAL K9N to 1000 gallons of water in the system weekly or as needed to maintain control of bacteria, fungi and algae. For noticeably fouled systems, an initial treatment with 1.25 to 7.5 lb of TROY MERGAL K9N per 1000 gallons of water may be needed depending on the severity of the fouling. 

*Conveyor Lubricants: TROY MERGAL K9N is recommended for the control of bacteria and fungi in the manufacture and use of water-based conveyor lubricants. 
TROY MERGAL K9N should be dispensed into the conveyor lubricant concentrate and uniformly dispersed throughout the fluid or dispensed into the conveyor lubricant use- dilution feed line using a metering pump and uniformly sprayed onto the conveyor. 

TROY MERGAL K9N should be added to the conveyor lubricant concentrate at a level to ensure that the final use-dilution shall contain 200-1,000 ppm of TROY MERGAL K9N (3 -15 ppm active ingredient). Grossly contaminated systems must be cleared before treatment is begun. 
Initial Dose: For a noticeably fouled system, meter in 8.3 pounds (126 fluid ounces) of TROY MERGAL K9N per 1,000 gallons of use-dilution conveyor lubricant. 
If necessary, continue metering 3.3-8.3 pounds (50-126 ounces) of TROY MERGAL K9N per 1,000 gallons of conveyor lubricant until control is achieved and only to maintain the level of TROY MERGAL K9N in the final use-dilution fluid at 400 – 1,000 ppm (6-15 ppm active ingredient). 
Subsequent Dose: After establishing microbial control or to prevent fouling of a clean system, maintain the system at 3-15 ppm active ingredient by metering 1.7-8.3 pounds (26-126 ounces) of TROY MERGAL K9N per 1,000 gallons of conveyor lubricant. 

*Preservative for Foam Control Products: TROY MERGAL K9N is recommended as an in-container preservative for the control of bacteria and fungi in foam control products. 
Add 0.5 to 3.3 lb (227 g to 1.5 kg) of TROY MERGAL K9N to each 1,000 lb. (454 kg) of aqueous product to provide 7 ppm to 50 ppm active isothiazolinones. 

*Industrial Process Water: TROY MERGAL K9N is recommended for the control of bacteria, fungi and algae in industrial process water systems including Retort Water Systems, Industrial Scrubbing Systems, Evaporative Condenser Water Systems, Hydrostatic Sterilizer Water Systems, and Coal Slurry Systems. 
It should be added at a point to ensure uniform mixing. 
Add 0.3 to 1.86 lb. of TROY MERGAL K9N per 1000 gallons of water (35 to 220 ppm TROY MERGAL K9N) weekly as needed for maintenance. 
For noticeably fouled systems, use an initial dose of 1.25 to 7.5 lb of TROY MERGAL K9N per 1000 gallons of water. 
Repeat if necessary to achieve control. 
Metalworking Fluids: Recommended for the maintenance and control of bacteria in soluble and emulsifiable-type aqueous metalworking fluids. 

Maintenance: For non-fouled systems use TROY MERGAL K9N at 32 fluid ounces per 1000 gallon of emulsion (2 pound) every 4 weeks or 32-148 fluid ounces per 1000 gallon of emulsion (2-10 pound) every 8-12 weeks. 
This corresponds to 250-1,167 ppm TROY MERGAL K9N (3.84-17.5 ppm active ingredient). 
For fouled systems use an initial dose of 64-148 fluid ounces per 1000 gallon emulsion (4-10 pound) to be followed by subsequent maintenance dosages depending on the treatment interval already referenced. 
This corresponds to 500- 1,167 ppm TROY MERGAL K9N or 7.5-17.5 ppm active ingredient. 
The preservative should be dispensed into the use-dilution of the metalworking fluid using a metering pump and uniformly dispersed throughout the system.


This document must accompany each shipment of TROY MERGAL K9N 

*Hydraulic Fluids: Recommended for the manufacture and use of high water-based hydraulic fluids and invert emulsion hydraulic fluids typically prepared by emulsifying 40% by volume water in 60% by volume mineral oil using an oil-soluble emulsifying agent. 
Maintenance: For non-fouled systems use TROY MERGAL K9N at 110-135 fluid ounces (7.2-8.8 pound) per 1000 gallon fluid every 8 weeks. 
This corresponds to 980-1,200 ppm TROY MERGAL K9N or 15-18 ppm active ingredient. 
For fouled systems use an initial dose of 35-235 fluid ounces (8.8-15.4 pound) per 1000 gallon fluid to be followed by subsequent maintenance dosages. 
This corresponds to 1,200-2,100 ppm TROY MERGAL K9N or (18-32 ppm active ingredient). 

The preservative should be dispensed into the use-dilution of the hydraulic fluid using a metering pump and uniformly dispersed throughout the system. 

*FUEL PRESERVATIVE 
Recommended for the control of bacteria and fungi in crude oils, aviation fluids, kerosene, heating oils, residual fuel oils, coal slurries, liquefied petroleum gases, petrochemical feedstocks, diesel fuels and gasoline. 
Dispense TROY MERGAL K9N directly into a fuel tank, storage tank, or flowing stream of fuel in a manner to ensure uniform distribution. 
Add TROY MERGAL K9N at 100-400 ppm (v/v) volume to volume of fluid. Repeat as necessary to maintain system. 
For aviation fuels, consult the FAA to determine acceptability prior to use in engines and/or aircraft. 

*Industrial Recirculating Closed Loop Water Cooling Systems: Add 0.3 to 1.86 lb. of TROY MERGAL K9N per 1,000 gallons of water in the system weekly to maintain control of bacteria, fungi and algae in the reservoir, recirculating line or some other point to ensue uniform mixing. 
For noticeably fouled systems, an initial treatment with 1.25 to 7.5 lb of TROY MERGAL K9N per 1,000 gallons of water may be needed depending on the severity of the fouling. *Industrial Recirculating Water Cooling Towers: TROY MERGAL K9N is recommended for the control of bacteria, fungi and algae. 
It should be added to the tower basin or some other point to ensure uniform mixing. Add 0.3 to 1.86 lb. of TROY MERGAL K9N per 1,000 gallons of water (35 to 220 ppm TROY MERGAL K9N) weekly as needed for maintenance. For noticeably fouled systems, use an initial dose of 1.25 to 7.5 lb. of TROY MERGAL K9N per 1,000 gallons of water. 

Repeat if necessary to achieve control. 

*Ultra Filtration Units, such as Reverse Osmosis Membranes: TROY MERGAL K9N is recommended for the control of bacteria and fungi in ultra filtration units, such as reverse osmosis membranes. 

Add 10 to 333 ppm of TROY MERGAL K9N (0.15 to 5 ppm active ingredient) into industrial ultra filtration or reverse osmosis membranes by either continuous feed or periodic injection. 
Compatibility of TROY MERGAL K9N with reverse osmosis membranes should be confirmed with membrane manufacturers. 
For the control of bacteria and fungi in carbon beds, add 10 to 333 ppm of TROY MERGAL K9N (0.15-5 ppm active ingredient). 
For periodic membrane cleaning, add 0.4 – 1.0 lb. of TROY MERGAL K9N to every 120 gallons of cleaning solution (6 – 15 ppm active ingredient). 
Badly fouled systems should be cleaned before treatment is begun. 

SUPPLEMENTAL DOSING: Depending on the nature/severity of the contamination, if analysis indicates a loss of active ingredient(s) and further microbial control is necessary, product may be dosed with additional microbiocide at a level to ensure that the final use-dilution product will not exceed the maximum concentration indicated.


Corrosive. Causes irreversible eye damage and skin burns. 
Do not get in eyes, skin or clothing. 
May be fatal if inhaled. 
Harmful if swallowed or absorbed through skin. 
This product may cause skin sensitization reactions in some people. 
Do not breathe vapor or spray mist. Wear goggles or face shield. 
Wear a NIOSH approved respirator with an organic vapor cartridge with a combination N, R or P filter with approval number prefix TC-84A; or NIOSH approved gas mask with a canister with approval number prefix TC-14G; or powered air purifying respirator with organic vapor cartridge and combination HE filter with NIOSH approval number prefix TC-23C. PERSONAL PROTECTIVE EQUIPMENT (PPE): Mixers, loaders and others exposed to methylisothiazolinone products must wear: x Long-sleeve shirt and long pants x Chemical-resistant apron x Chemical-resistant gloves x Shoes plus socks Discard clothing or other absorbent materials that have been drenched or heavily contaminated with this product’s concentrate. Do not reuse them. Follow manufacturer’s instructions for cleaning/maintaining PPE. 
If no such instructions for washables exist, use detergent and hot water. 
Keep and wash PPE separately from other laundry. 

USER SAFETY RECOMMENDATIONS 
Users should: x Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. x Remove clothing immediately if pesticide gets inside. 
Then wash thoroughly and put on clean clothing. x Remove personal protective equipment immediately after handling this product. 
Wash the outside of gloves before removing. 
As soon as possible wash thoroughly.


Mergal K 9 N is a clear pale green to pale blue liquid with a mild characteristic odor. 
Corrosive liquid. 
EPA Signal Word - DANGER. 
May cause severe eye irritation and irreversible corneal damage. 
May cause severe skin irritation and burns. 
May cause allergic skin reactions. 
Skin effectsmay be delayed for hours. 
May be harmful if swallowed. 
May cause respiratory irritation. This material is toxic to fish. 
Avoid contamination of streams and sewers


PRESERVATION OF POLYVINYL ALCOHOL IN AQUEOUS SOLUTION
Like any other polyvinyl alcohol, KURARAY POVAL in the form of an aqueous solution can be attacked by microorganisms under certain conditions. 
In the acidic pH range the main organisms reproduced are the fission fungi, whilst bacteria grow most readily in a neutral to weakly alkaline medium. 
The solution can be preserved from any microorganism attack by adding a preservative. 
Products which have proved especially suitable for the purpose are for example the Mergal grades K9N and K14. 
The dosage depends on the concentration of the solution, the storage temperature and the nature and intensity of the infection. 
Quantities of about 0.01 - 0.2 % by weight preservative, relative to the KURARAY POVAL solution, are generally sufficient.
Compatibility and efficiency must be tested. Information on the quantity to be used is available from the suppliers.

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