Material Safety Data Sheet: Chloramine-T

Identification

Product Name: Chloramine-T
Chemical Name: Sodium p-toluenesulfonchloramide
Synonyms: Sodium N-chloro-p-toluenesulfonamide, Chloramin T
CAS Number: 127-65-1
Recommended Use: Disinfectant, reagent for analytical chemistry, water treatment
Supplier Identification: Manufacturer details (address, contact number, emergency phone number)
UN Number: 3263
Emergency Overview: White crystalline powder or granules, chlorine-like odor

Hazard Identification

Hazard Class: Oxidizing solid, acute toxicity (oral, dermal, inhalation), eye and skin irritant
GHS Label Elements: Danger; pictograms for corrosive, exclamation mark, oxidizer
Hazard Statements: Causes severe skin burns and eye damage, harmful if swallowed or inhaled, may cause respiratory irritation, may intensify fire (oxidizer)
Precautionary Statements: Avoid breathing dust/fume, wear protective gloves/eye protection, wash skin thoroughly after handling
Adverse Health Effects: Exposure can damage mucous membranes, lead to eye burns, skin corrosion, and respiratory distress

Composition / Information on Ingredients

Chemical: Chloramine-T, hydrated
CAS Number: 127-65-1
EC Number: 204-854-7
Concentration: Typically > 99% active ingredient
Impurities: May contain sodium chloride, sodium p-toluenesulfonate as minor byproducts

First Aid Measures

General Advice: Move affected person from danger area to fresh air, consult physician immediately
Inhalation: Provide fresh air, keep victim calm, seek medical attention
Skin Contact: Remove contaminated clothing, rinse skin with water for at least 15 minutes, seek medical advice
Eye Contact: Rinse eyes with plenty of water for at least 15 minutes, remove contact lenses, call a doctor
Ingestion: Do not induce vomiting, rinse mouth, never give anything by mouth to an unconscious person, get immediate medical help

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, foam; use water to cool containers
Unsuitable Media: Avoid CO₂ or dry powder in case of large fires involving oxidizers
Burning Hazards: Decomposes under fire, gives off toxic fumes including chlorine and nitrogen oxides
Protective Equipment: Self-contained breathing apparatus, full protective gear for fire fighters
Special Procedures: Move containers from fire area if safe, prevent run-off into drains or waterways

Accidental Release Measures

Personal Precautions: Evacuate area, ensure adequate ventilation, wear appropriate protective equipment
Preventative Measures: Avoid inhalation of dust and contact with skin or eyes
Containment: Sweep up and collect non-dispersed material, avoid creating dust
Clean-Up: Place spillage in containers for disposal, wash area with water, ventilate area; prevent entry into sewers or waterways
Environmental Precautions: Notify authorities in case the product enters public waters, minimize release into the environment

Handling and Storage

Handling: Avoid dust formation, work in well-ventilated areas, wear standard laboratory protective gear
Hygiene Measures: Wash hands thoroughly after handling, keep food and drinks away from the workspace
Storage Conditions: Store tightly sealed in original container, keep in cool, dry, well-ventilated area, away from incompatible substances such as acids and reducing agents
Container Recommendations: Containers should remain tightly closed when not in use; avoid metal shelves or leaky packaging
Incompatibilities: Acids, ammonia, reducing agents, organic materials

Exposure Controls and Personal Protection

Engineering Controls: Local exhaust ventilation, mechanical general ventilation to minimize dust exposure
Personal Protection: Chemical-resistant gloves (nitrile, neoprene), safety goggles, lab coat or chemical apron, dust mask or respirator (P2 or N95 equivalent) if dust is generated
Biological Limit Values: Not established
Occupational Exposure Limit: No established threshold limit values
Other Controls: Emergency eye wash stations, safety showers in the work area

Physical and Chemical Properties

Appearance: White to slightly off-white crystalline powder or granules
Odor: Slight chlorine-like odor
Melting Point: 167–170°C (decomposes)
Solubility: Soluble in water, insoluble in most organic solvents
pH: 8.5–10.5 (1% solution)
Density: 1.52 g/cm³ at 20°C
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: Non-flammable
Vapor Pressure: Negligible
Stability: Stable under normal conditions, sensitive to light, moisture, and acids

Stability and Reactivity

Stability: Stable under recommended storage and handling conditions
Polymerization: Will not occur
Hazardous Reactions: Reacts with acids, reducing agents, and ammonia to produce toxic gases (chlorine, nitrogen oxides)
Decomposition Products: Hydrogen chloride, nitrogen oxides, sulfur oxides, p-toluenesulfonamide
Conditions to Avoid: Contact with acids, exposure to moisture, heat, and incompatible materials

Toxicological Information

Acute Toxicity: Harmful if ingested, inhaled, or absorbed through skin; LD₅₀ (oral, rat): 935 mg/kg
Chronic Exposure: Prolonged or repeated skin contact causes dermatitis, repeated inhalation may cause respiratory irritation
Skin Corrosion/Irritation: Severely irritating, risk of burns
Eye Damage/Irritation: Serious eye irritation, eye burns possible
Respiratory Sensitization: Not established, but dust may cause asthma-like symptoms
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, OSHA; no sufficient evidence for carcinogenic effects
Mutagenicity: No conclusive data, standard precautions recommended
Other Information: Methemoglobinemia risk in high exposures

Ecological Information

Ecotoxicity: Toxic to aquatic life, LC₅₀ (fish): 5–10 mg/L (96 h)
Persistence and Degradability: Not readily biodegradable; product dissociates and reacts with water and bacteria
Bioaccumulation Potential: Low, based on water solubility
Mobility in Soil: High; material is soluble and can move through the soil, may affect water supplies
Other Adverse Effects: Toxic to microorganisms, recommended to avoid discharge into environment where possible

Disposal Considerations

Disposal Methods: Dispose via licensed chemical waste contractor; do not dump into sewers, drains, or open environment
Contaminated Packaging: Treat containers as hazardous waste; thoroughly clean before disposal or recycling
Special Precautions: Neutralize residues with sodium thiosulfate, dilute well with water, follow local regulations
Regulatory Waste Codes: Consult national/state hazardous waste lists for specific classification under local laws
Advice for Disposal: Minimize production of waste whenever possible, reuse or recycle if feasible

Transport Information

UN Number: 3263
UN Proper Shipping Name: Corrosive solid, basic, organic, n.o.s. (contains Chloramine-T)
Transport Hazard Class: 8 (corrosive substances)
Packing Group: III
Labeling Requirements: Corrosive substance, environmentally hazardous where required
Special Precautions: Avoid release to environment during transport, prevent package damage and spillage
DOT, IMDG, IATA Regulations: Product classified as hazardous by major international transport agencies

Regulatory Information

US Regulations: Listed on TSCA inventory, subject to SARA Title III reporting where thresholds met
EU Regulations: Classified under CLP regulation; safety data sheet available upon request per regulation EC 1907/2006 (REACH)
Canada: WHMIS classification D2B (toxic), E (corrosive material)
Other International: Listed on major chemical inventories (Australia AICS, Japan ENCS, China IECSC)
Label Information: Complies with GHS labeling; pictograms, precautionary statements, hazard communication standard
Other Notes: Users must comply with local, regional, and national regulations; workplace exposure limits may differ by jurisdiction