CONTRAM ST-1 is a highly concentrated industrial bactericide based on tetrahydrooxazines. 
Owing to CONTRAM ST-1's good solubility this preserving agent is suitable for oily as well as aqueous systems. 
CONTRAM ST-1 is effective against gram-negative and gram positive bacterias. 

CAS Number: 5625-90-1
EC Number: 227-062-3

Typical Properties of CONTRAM ST-1:
Aspect (visual): Clear low viscous liquid 
Colour (visual): Colourless to slightly yellowish 
Odour: Mild, nil in dilution 
Density (g/cm 3 ) @ 20°C (DIN 51 757): typ. 1.06 
pH (10 g/l in water): typ. 10.2 
Active content (%): typ. 50% 
Refraction index @ 20°C: typ. 1.416 
Viscosity (20°C, mm 2 /s): typ. 16 
Solubility: Water soluble

CONTRAM ST-1 is a highly concentrated and purified industrial bactericide based on N,N-Methylenebismorpholine (CAS#: 5625-90-1). 
CONTRAM ST-1 is effective against both gram-negative and gram-positive bacteria. 

Since CONTRAM ST-1 has limited efficacy against fungi, the product should be used in combination with a fungicide. 
To inhibit the growth of bacteria in soluble oil and semi-synthetic metalworking fluids, the recommended addition level for CONTRAM ST-1 is 3% in concentrates designed for 20:1 dilution. 

At a 3% treat level, this results in a 1500ppm concentration in the diluted metalworking fluid. 
CONTRAM ST-1 might be added to the oil phase prior to addition of water when preparing a semi-synthetic formulation in order to maximize product efficacy and ensure long lasting performance.

Applications of CONTRAM ST-1:
CONTRAM ST-1 is successfully applied for the preservation, mineral oil containing, water miscible coolants. 
For water based fluids based on a SOE-type we recommend to combine CONTRAM ST-1 with the emulsifier package LUBRIZOL 5375 and for a semisynthetic metalworking fluid to combine with emulsifier package LUBRIZOL 5683. 

Compared to hexahydrotriazines and oxazolidines, CONTRAM ST-1 is more stable in metalworking concentrates. 
CONTRAM ST-1 should be used at an addition level of 2 – 6% in a concentrate and at 0.3% in finished cutting fluid user dilutions, in order to have a concentration of 1,000 to 1,500 ppm of the active. 
In order to get an additional effeciency against fungies we recommend using in combination with our CONTRAM J  20 or CONTRAM FKK.

Features of CONTRAM ST-1: 
-Low odour 
-Low formaldehyde content 
-Helps in the corrosion protection 
-Very stable molecule 
-Good compatibility and solubility 
-Very good performance 
-It can be used in fluids with pH of 3 to 12.

CONTRAM ST-1 is not compatible with acids and oxidizing agents.

Applications of CONTRAM ST-1:
Metalworking fluids

Features of CONTRAM ST-1:
Very stable and purified bactericide for metalworking concentrates with balanced oil and water solubility
In the EU this biocidal substance is already authorized under the Biocidal Products Regulation (BPR) for use in PT6 and PT13, and this Biocidal Product CONTRAM ST-1 is in the authorization process as a biocidal Product for use in PT13 for concentrate and tank side. 
In Germany its use is limited to Export Only products

CONTRAM ST-1 is also registered in the United States under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) for use in metalworking concentrates. 
The Environmental Protection Agency (EPA) registration number is 52484-3. 
Metal working fluid concentrates containing CONTRAM ST-1 are therefor allowed for Import into the US.

Shelf Life of CONTRAM ST-1:
At least 12 months in original sealed containers. 
CONTRAM ST-1 should be stored in steel or plastic containers, dry and at room temperature.

CONTRAM ST-1 industrial biocide is an extremely effective antibacterial compound for use in aqueous metalworking fluids. 
Unlike competitive products, which are designed for other uses and may require the addition of non-ionics and more expensive emulsifiers, CONTRAM ST-I was developed specifically for use in metalworking fluids. 

The EPA approved CONTRAM ST-1 product for use in the US is exceptionally stable in metalworking fluid concentrates and does not disrupt the balance of the emulsifier system. 
The product also demonstrates long lasting efficacy in diluted emulsions; it lasts throughout the majority of the life of the metalworking fluid, which means longer drain intervals, reduced maintenance costs, and much less work tank side.

First Aid of CONTRAM ST-1:
If on Skin: 
Take off contaminated clothing.
Rinse skin immediately with plenty of water for 15-20 Minutes. 
Call a poison control center or doctor for treatment advice.

If in Eyes: 
Hold eye open and rinse slowly and gently with water for 15-20 minutes.
Remove contact lenses, if present, after the first 5 minutes, then continue rinsing. 
Call a poison control center or doctor for treatment advice.

If Inhaled: 
Move person to fresh air. 
If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably mouth-to-mouth if possible. 
Call a poison control center or doctor for treatment advice.

If Swallowed: 
Call a poison control center or doctor for treatment advice. 
Have person sip a glass of water if able to swallow. 
Do not induce vomiting unless told to by a poison control center or doctor. 
Do not give anything to an unconscious person.

Corrosive. Causes skin burns. 
Causes irreversible eye damage. 
May be fatal if inhaled. 
Do not breathe mist. 

Do not get in eyes, on skin or on clothing. 
Wear coveralls worn over long-sleeved shirt and long pants, socks, chemical-resistant footwear, chemical-resistant (such as nitrile or butyl) gloves, and protective eyewear. 
For closed loading systems that are engineered to eliminate contact with aerosols and vapors, workers must have access to a respirator with an organic-vapor removing cartridge with a prefilter approved for pesticides (MSHA/NIOSH approval number prefix TC-23C), or a canister approved for pesticides (MSHA/NIOSH approval number prefix TC-14G), or a NIOSH approved respirator with an organic vapor (OV) cartridge or canister with any R, P, or HE prefilter. 

For open pour systems, workers must wear the type of respirator specified above. 
Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco, or using the toilet. 
Remove and wash contaminated clothing before reuse.

Do not discharge effluent containing this product into lakes, streams, ponds, estuaries, oceans or other waters unless in accordance with the requirements of a National Pollutant Discharge Elimination System (NPDES) permit and the permitting authority has been notified in writing prior to discharge. 
Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority. 
For guidance contact your State Water Board or Regional Office of the EPA.

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
For use in formulating metalworking, cutting, cooling and lubricating fluid concentrates that will be used only in closed or semi-enclosed machines. 
Semi-enclosed machines are machines that provide effective mist containment. 
Do not apply this product directly to the end-use fluids.

Do not contaminate water, food or feed by storage and disposal.

Store in well ventilated area in original container only. 
Storage area needs to be covered to prevent water from entering.

Place container in overpack drum. 
Residual material can be absorbed by inert material.

Pesticide wastes are acutely hazardous.
Improper disposal of excess pesticide, spray mixture or rinsate is a violation of Federal Law. 
If these wastes cannot be disposed of by use according to label instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste Representative at the nearest EPA Regional Office for guidance.

Nonrefillable container. 
Do not reuse this container to hold materials other than pesticides or dilute pesticides (rinsate). 
After emptying and cleaning, it may be allowable to temporarily hold rinsate or other pesticide-related materials in the container. 

Contact your state regulatory agency to determine allowable practices in your state. 
Offer for recycling or reconditioning, as available. 
Triple rinse or pressure rinse container (or equivalent) promptly after emptying.

Triple rinse as follows: 
Empty the remaining contents into application equipment or a mix tank. 
Fill the container ¼ full with water. 
Replace and tighten closures. 

Tip container on its side and roll it back and forth, ensuring at least one complete revolution, for 30 seconds. 
Stand the container on its end and tip it back and forth several times. 

Turn the container over onto its other end and tip it back and forth several times.
Empty the rinsate into application to equipment or a mix tank or store rinsate for later use or disposal. 
Repeat this procedure two more times.

Pressure rinse as follows: 
Empty the remaining contents into application equipment or mix tank and continue to drain for 10 seconds after the flow begins to drip. 
Hold container upside down over application equipment or mix tank or collect rinsate for later use or disposal. 
Insert pressure rinsing nozzle in the side of the container, and rinse at about 40 PSI for at least 30 seconds after the flow begins to drip.


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