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CONTRAM ST-1/50 is a silicone-based antifoam and defoaming agent designed to control foam formation in industrial liquid systems.
CONTRAM ST-1/50 contains dispersed silicone compounds that rapidly destabilize foam bubbles at the air–liquid interface.
CONTRAM ST-1/50 is effective against gram-negative and gram positive bacterias.
CAS Number: 111-30-8
EINECS Number: 203-856-5
Synonyms: GLUTARDIALDEHYDE SOLUTION 25% FOR ELECTR;PENTANDIAL;Glutaraldehyde 25 % solution in water;Glutaraldehyde 50 % solution in water;Glutaraldehyde 8 % solution in water;glutaric dialdehyde solution;GLUTARICDIALDEHYDE,50%INWATER;Glutaraldehybe Soution
CONTRAM ST-1/50 is a highly concentrated industrial bactericide based on tetrahydrooxazines.
Owing to its good solubility this preserving agent is suitable for oily as well as aqueous systems.
In order to get an additional effeciency against fungies we recommend using in combination with our CONTRAM ST-1/50.
This structure provides fast knockdown of existing foam and long-lasting foam suppression.
CONTRAM ST-1/50 typically appears as a milky white to slightly opaque liquid dispersion.
It shows good compatibility with water-based systems and maintains stability over a wide temperature range.
Proper dispersion allows uniform distribution and consistent antifoaming performance.
CONTRAM ST-1/50 works by reducing surface elasticity and weakening the lamella structure of foam bubbles.
The silicone droplets spread rapidly across the foam film and promote bubble rupture.
This mechanism prevents foam accumulation and improves process stability.
CONTRAM ST-1/50 exhibits high efficiency at low dosage levels due to the strong surface activity of silicone components.
Small additions are sufficient to control persistent or mechanically generated foam.
This minimizes formulation impact while maintaining effective foam control.
CONTRAM ST-1/50 maintains chemical stability under neutral and mildly alkaline processing conditions.
It resists thermal degradation during typical industrial operating temperatures.
Strong oxidizing environments or extreme pH may reduce long-term effectiveness.
CONTRAM ST-1/50 shows good compatibility with many polymers, surfactants, salts, and inorganic additives.
Proper compatibility testing is recommended to avoid phase separation or surface defects in sensitive formulations.
Balanced formulation ensures consistent performance and visual quality.
CONTRAM ST-1/50 is widely used in wastewater treatment systems to suppress biological and mechanical foam formation.
CONTRAM ST-1/50 improves aeration efficiency and prevents overflow, sensor fouling, and operational interruptions.
Stable foam control supports continuous plant operation and safety.
CONTRAM ST-1/50 is applied in coatings, adhesives, and polymer dispersions to eliminate entrapped air and surface bubbles.
It improves film uniformity, gloss consistency, and defect reduction during curing and drying.
This enhances final product appearance and performance reliability.
CONTRAM ST-1/50 is used in pulp and paper processing to control foam during stock preparation and coating operations.
It prevents foam-related sheet defects and improves drainage efficiency.
This supports higher production efficiency and consistent paper quality.
CONTRAM ST-1/50 may cause mild irritation to skin or eyes upon direct contact.
Inhalation of aerosols or mists may cause temporary respiratory discomfort.
Basic personal protective equipment and adequate ventilation reduce exposure risks.
CONTRAM ST-1/50 can create slippery surfaces when spilled, increasing the risk of workplace accidents.
Spills should be cleaned promptly using absorbent materials and proper disposal procedures.
Good housekeeping practices minimize slip hazards.
CONTRAM ST-1/50 should be stored in tightly sealed containers away from extreme heat and freezing conditions.
Prolonged exposure to high temperatures may affect emulsion stability and performance.
Proper storage preserves product integrity and shelf life.
Melting point: −15 °C
Boiling point: 100 °C
Density: 1.058 g/mL at 20 °C
Vapor density: 1.05 (vs air)
Vapor pressure: 15 mmHg at 20 °C
Refractive index: n20/D 1.450
Flash point: 100 °C
Storage temperature: Store below +30 °C
Solubility: Slightly soluble in chloroform, DMSO, ethyl acetate, and methanol
Form: Solution
Color: Clear to slight haze
CONTRAM ST-1/50 provides rapid foam collapse even in highly agitated systems with strong air entrainment.
Its fast spreading coefficient allows quick penetration into foam lamellae.
This ensures immediate process stabilization and reduced downtime.
CONTRAM ST-1/50 maintains effectiveness across a wide range of water hardness and electrolyte concentrations.
Calcium and magnesium ions do not significantly interfere with antifoam performance when properly dispersed.
This supports reliable operation in variable water quality environments.
CONTRAM ST-1/50 exhibits low volatility and minimal odor under normal operating conditions.
This improves operator comfort and reduces vapor exposure concerns.
Low evaporation ensures consistent active concentration during extended processing.
CONTRAM ST-1/50 demonstrates good shear stability during pumping, mixing, and recirculation.
The silicone droplets remain well-dispersed without excessive coalescence or phase separation.
This preserves consistent foam suppression efficiency throughout processing cycles.
CONTRAM ST-1/50 minimizes surface defects such as craters, pinholes, and fish-eyes in coating applications.
Effective air release improves film smoothness and optical uniformity.
This supports high-quality surface appearance and defect-free finishes.
CONTRAM ST-1/50 supports improved mass transfer efficiency in fermentation and biological treatment systems by preventing excessive foam buildup.
Stable liquid–gas contact enhances oxygen transfer and biological activity.
This improves productivity and process control.
CONTRAM ST-1/50 shows resistance to moderate microbial degradation due to its silicone-based chemistry.
This contributes to extended shelf stability and consistent performance.
Proper storage further enhances microbial resistance.
CONTRAM ST-1/50 can be metered accurately using standard dosing pumps and automated control systems.
Precise dosing minimizes overuse and prevents surface defects or incompatibility issues.
Automated control improves operational efficiency and chemical cost management.
CONTRAM ST-1/50 supports stable performance in both batch and continuous processing operations.
Consistent foam control reduces variability and improves product quality reproducibility.
This enhances overall manufacturing reliability.
CONTRAM ST-1/50 maintains antifoaming efficiency in systems containing surfactants, dispersants, and wetting agents.
The silicone phase selectively disrupts foam without significantly interfering with bulk formulation properties.
This allows effective foam control even in complex chemical mixtures.
CONTRAM ST-1/50 supports improved filtration and separation processes by eliminating foam interference.
Reduced foam improves liquid flow consistency and prevents sensor and pump malfunctions.
This enhances operational safety and process reliability.
CONTRAM ST-1/50 performs effectively under moderate pressure variations encountered in closed-loop circulation systems.
Stable dispersion prevents loss of activity during pressure cycling.
This ensures continuous foam suppression during dynamic process conditions.
CONTRAM ST-1/50 improves heat transfer efficiency by preventing insulating foam layers on liquid surfaces.
Better thermal contact improves temperature control and energy efficiency.
This supports stable reaction kinetics and consistent product quality.
CONTRAM ST-1/50 reduces cleaning frequency and maintenance downtime by preventing foam-related contamination and overflow.
Cleaner process environments improve equipment longevity and operational hygiene.
This contributes to lower operational costs and improved plant efficiency.
CONTRAM ST-1/50 maintains functionality across a broad viscosity range of treated liquids.
It remains effective in both low-viscosity aqueous solutions and moderately viscous formulations.
This versatility expands its applicability across multiple industrial sectors.
CONTRAM ST-1/50 shows predictable dispersion behavior when added either pre-diluted or directly into process streams.
Proper addition techniques enhance rapid distribution and antifoam activation.
This minimizes response time during foam surge events.
CONTRAM ST-1/50 contributes to consistent product appearance by preventing entrapped air bubbles and surface irregularities.
Uniform surface quality improves customer acceptance and performance reliability.
This supports higher product value and reduced rejection rates.
Uses:
As broad-spectrum antimicrobial cold sterilant/disinfectant for hospital equipment; as tanning agent for leather; as tissue fixative; as cross-linking agent for proteins; as preservative in cosmetics; as therapeutic agent for warts, hyperhidrosis, and dermal mycotic infections; in X ray processing solutions and film emulsion; as a disinfectant in the beauty industry
CONTRAM ST-1/50 is used in wastewater treatment plants to control biological and mechanical foam formation in aeration tanks and clarifiers.
CONTRAM ST-1/50 prevents overflow, improves oxygen transfer efficiency, and protects sensors and pumps from foam-related fouling.
This ensures stable plant operation and improved treatment efficiency.
CONTRAM ST-1/50 is applied in coatings, paints, and varnishes to eliminate entrapped air and surface bubbles during mixing and application.
It improves film smoothness, gloss uniformity, and defect reduction such as craters and pinholes.
This enhances surface appearance and coating durability.
CONTRAM ST-1/50 is used in adhesive and sealant formulations to prevent foam generation during high-speed mixing and dispensing.
It improves flow consistency and reduces void formation in cured products.
This supports stronger bonding performance and dimensional stability.
CONTRAM ST-1/50 is incorporated into fermentation and biochemical processes to suppress excessive foam caused by microbial activity.
It maintains stable liquid–gas contact and prevents product loss due to foaming overflow.
This improves productivity, process safety, and batch consistency.
CONTRAM ST-1/50 is used in pulp and paper manufacturing to control foam during stock preparation, coating, and recycling operations.
It improves drainage efficiency and prevents sheet defects related to trapped air.
This supports higher production throughput and consistent paper quality.
CONTRAM ST-1/50 is applied in textile processing to reduce foam in dyeing, washing, and finishing baths.
It improves liquor circulation, fabric wetting uniformity, and process stability.
This enhances product quality and reduces downtime.
CONTRAM ST-1/50 is used in chemical processing systems to suppress foam during agitation, pumping, and filtration operations.
It prevents overflow, improves mass transfer efficiency, and protects downstream equipment.
This supports safer operation and consistent process performance.
CONTRAM ST-1/50 is used in metalworking fluids to control foam during high-speed machining and circulation.
CONTRAM ST-1/50 prevents pump cavitation, improves coolant flow stability, and enhances heat removal efficiency.
This supports tool life extension and consistent machining quality.
CONTRAM ST-1/50 is applied in latex and polymer dispersion manufacturing to suppress foam during emulsion polymerization and mixing.
It prevents air entrapment and improves particle dispersion uniformity.
This enhances product stability and downstream processing reliability.
CONTRAM ST-1/50 is used in detergents and industrial cleaners to reduce excessive foam during washing and rinsing operations.
It improves rinsability and prevents overflow in automated cleaning systems.
This supports consistent cleaning performance and equipment safety.
CONTRAM ST-1/50 is incorporated into ceramic slurries and mineral processing suspensions to eliminate foam during grinding and slurry transport.
It improves slurry density control and casting uniformity.
This supports defect reduction and improved product consistency.
CONTRAM ST-1/50 is used in food-contact process water systems where controlled foam suppression is required under regulated conditions.
It prevents foaming in washing, transport, and circulation operations when compliant grades are selected.
CONTRAM ST-1/50 is applied in oil and gas processing fluids to reduce foam formation during separation and circulation.
CONTRAM ST-1/50 improves phase separation efficiency and prevents overflow in separators.
Safety Profile:
Poison by ingestion, intravenous, and intraperitoneal routes.
Moderately toxic by inhalation, skin contact, and subcutaneous routes.
Experimental teratogenic and reproductive effects.
A severe eye and human skin irritant.
CONTRAM ST-1/50 may cause mild skin and eye irritation upon direct contact.
Symptoms can include redness, itching, or temporary discomfort.
Basic personal protective equipment such as gloves and safety glasses is recommended during handling.
Inhalation of mist or aerosol may irritate the respiratory tract and cause coughing or throat discomfort.
High airborne concentrations should be avoided through adequate ventilation and controlled dosing systems.
Respiratory protection may be required in confined or poorly ventilated environments.
Accidental ingestion may cause gastrointestinal irritation, nausea, or mild stomach discomfort.
Large quantities may increase the risk of vomiting or digestive upset.
Medical attention should be sought if symptoms persist.
CONTRAM ST-1/50 can create slippery surfaces when spilled, increasing the risk of slips and falls in the workplace.
Spills should be cleaned immediately using absorbent materials and proper disposal procedures.
