Material Safety Data Sheet: Sodium Trichloro Benzene Sulfonate

Identification

Product Name: Sodium Trichloro Benzene Sulfonate
Chemical Formula: C6H2Cl3NaO3S
Trade Names: Commonly sold under various manufacturer brands for industrial and laboratory use
Recommended Use: Employed in detergents, surfactants, water treatment formulations, and chemical synthesis
Manufacturer Information: Manufacturers and distributors available globally; always check the container for local contact details.
Emergency Phone Number: Usually displayed on shipping label; consult manufacturer for region-specific information
Synonyms: Trichlorobenzenesulfonic acid, sodium salt

Hazard Identification

GHS Classification: Corrosive to skin (Category 1); serious eye damage (Category 1); potentially harmful if inhaled or ingested
Signal Word: Danger
Hazard Statements: Causes severe skin burns, eye damage, may be harmful to respiratory tract if inhaled; causes irritation to gastrointestinal tract upon ingestion; handling without protection increases risks
Pictograms: Corrosion symbol for skin/eye risk
Precautionary Statements: Always wear protective gloves and goggles; use in well-ventilated environment; avoid releases to environment; avoid direct contact and intake

Composition / Information on Ingredients

Chemical Identity: Sodium Trichloro Benzene Sulfonate
CAS Number: 12345-67-8 (for reference, verify for exact product)
Purity: Normally above 95%; may contain traces of related sulfonate compounds
Other Ingredients: Impurities typically comprise water and unreacted benzenesulfonate species, generally under 2%

First Aid Measures

Inhalation: Move exposed person to fresh air as soon as possible; keep at rest; seek prompt medical attention if symptoms such as coughing, dizziness, or throat irritation occur.
Skin Contact: Remove contaminated clothing; wash skin thoroughly with running water for at least 15 minutes; seek medical help for persistent irritation or burns.
Eye Contact: Hold eyelids open and rinse eyes immediately with plenty of running water for at least 15 minutes; remove contact lenses if present; get medical attention quickly.
Ingestion: Rinse mouth, do not induce vomiting; drink water if conscious; seek medical attention promptly; presenting product label or MSDS can help emergency responders.
Note to Physician: Treat as exposure to strongly irritant and corrosive chemical; symptomatic relief and supportive treatment recommended.

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam, or water spray in small fires; do not use straight water stream when chemical is present in large quantities.
Specific Hazards: Releases hazardous chlorine and sulfur oxides when burned, which can lacerate lungs and create toxic fume clouds.
Protective Equipment: Full protective gear and self-contained breathing apparatus; avoid inhalation of vapors or smoke.
Special Procedures: Attempt to move containers from fire area if safe; cool exposed surfaces with water mist to prevent further chemical breakdown.
Hazardous Combustion Products: Sulfur oxides, hydrogen chloride gas, sodium oxides, various volatile organics.

Accidental Release Measures

Personal Protection: Wear chemical-resistant gloves, goggles, and impervious clothing; use respirator if ventilation is inadequate.
Evacuation: Remove unprotected personnel and ventilate affected area.
Containment: Prevent spillage from entering drains, waterways, or soil; dam and cover spills if possible.
Cleanup: Scoop up solid spill for disposal in suitable labeled chemical containers; flush residue with plenty of water, neutralize with sodium bicarbonate if appropriate.
Decontamination: Use alkali for final neutralization and wash tools and protective wear thoroughly after cleanup.

Handling and Storage

Handling: Use in a well-ventilated place; avoid all direct contact with skin, eyes, and clothing; prevent formation of dust; never breathe dust or aerosols generated during transfer.
Storage Conditions: Store in tightly closed, corrosion-resistant containers away from incompatible substances like organic materials, reducing agents, and strong acids.
Storage Temperature: Keep at ambient temperatures, away from sources of heat and direct sunlight.
Incompatibilities: Avoid mixing with strong oxidizers, alkali metals, or strong reducing agents.
Special Precautions: Keep away from food, drink, and animal feed; label storage area with hazard designations.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established ACGIH/TLV or OSHA PEL, but minimize exposure as substance is corrosive.
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits.
Personal Protective Equipment: Wear appropriate chemical-resistant gloves, goggles with side shields, and face shield; chemical-resistant apron if risk of splashing exists; chemical-resistant shoes.
Respiratory Protection: Wear approved respirator in dusty areas or where ventilation is poor.
Hygiene Measures: Wash hands and face after handling; do not eat, drink, or smoke while working with product; provide eyewash and shower stations in area.

Physical and Chemical Properties

Appearance: Pale yellow to white crystalline powder or granules
Odor: Mildly pungent, chemical odor
Odor Threshold: Not established
pH (1% Solution): Typically between 6.5 and 8.5
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes on heating)
Flash Point: Not flammable under normal conditions
Solubility: Soluble in water; insoluble in common organic solvents
Vapor Density: Not applicable
Vapor Pressure: Negligible at ambient conditions
Relative Density: Approximately 1.6–1.8 (water = 1)
Partition Coefficient: No data available
Viscosity: Not applicable (solid material)

Stability and Reactivity

Chemical Stability: Stable under normal storage and use conditions.
Hazardous Reactions: Contact with strong acids releases sulfonic acid fumes and hazardous gases; may react with strong oxidizers to produce toxic gases.
Decomposition Products: Emits chlorine, hydrogen chloride, sulfur oxides, and sodium oxides at high temperatures.
Conditions to Avoid: High heat, moisture, incompatible chemicals, and direct sunlight may lead to breakdown and release of toxic vapors.
Polymerization: Not expected under recommended storage and handling procedures.

Toxicological Information

Acute Toxicity: Oral and dermal exposure may result in corrosive burns; animal studies indicate moderate to severe irritation depending on concentration.
Skin Corrosion/Irritation: Corrosive; may cause severe irritation or burns on skin contact.
Serious Eye Damage/Irritation: Severe eye irritant; potential to cause blindness and long-lasting damage.
Respiratory Effects: Dusts or solution mists can inflame lung tissue and upper airways; coughing, wheezing, and chest discomfort can develop.
Chronic Effects: Repeated or prolonged exposure increases risk for dermatitis and respiratory distress.
Sensitization: Not a known sensitizer though skin breakdown may increase susceptibility to other chemicals.
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive/Developmental Effects: Available data do not suggest specific reproductive or developmental issues.

Ecological Information

Ecotoxicity: May be harmful to aquatic organisms; concentrated solutions disrupt aquatic environments and may cause lethal pH shifts.
Persistence/Degradability: Moderately persistent with potential for gradual breakdown; microbial degradation expected over time.
Bioaccumulation: Low potential, but contamination of waterways still raises concerns.
Mobility in Soil: Mobile in water; moves readily through soil; reach to groundwater is possible if improperly managed.
Additional Environmental Effects: Discharge to environment should be avoided; always follow best waste management practices.

Disposal Considerations

Waste Treatment Methods: Dispose as hazardous waste; coordinate with licensed chemical disposal contractors.
Product Disposal: Dilute and neutralize residues with appropriate alkali, collect as controlled waste, and send for chemical incineration or specialized landfill.
Packaging Disposal: Rinse empty containers thoroughly and comply with local and national waste regulations; never reuse packaging for food or potable water.
Disposal Precautions: Never dump into drains or surface waters; always label waste containers with contents and hazards.

Transport Information

UN Number: UN3077 (for many regulated corrosive organic solids)
Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (Contains Sodium Trichloro Benzene Sulfonate)
Transport Hazard Class: 9 – Miscellaneous dangerous substances and articles
Packing Group: III (depending on specific formulation and concentration)
Transport Labels: Environmentally hazardous and corrosive label usually required
Special Precautions: Ship upright, protected from moisture; comply with all national and international regulations for road, rail, air, and sea.

Regulatory Information

US EPA: Regulated as a hazardous substance; subject to reporting requirements under CERCLA and SARA Title III.
TSCA Status: Most forms listed in TSCA inventory.
OSHA: Covered by hazard communication standard for corrosive and irritant chemicals.
European Union: Covered under REACH with registration requirement by manufacturers and importers; classified as hazardous according to CLP Regulation.
Other Local Regulations: Always consult state, provincial or regional regulations, as specific rules may apply based on concentration and volume in use.
Workplace Exposure Guidelines: Specific handling rules for corrosive chemicals enforced in many countries; always check with local authorities and industry safety advisors for compliance.