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Product Name: Potassium Bromate
Chemical Formula: KBrO3
Synonyms: Bromic acid, potassium salt
CAS Number: 7758-01-2
Recommended Use: Laboratory reagent, water treatment, limited industrial use
Manufacturer Identification: Supplier and emergency contact information must accompany packaging; details available from chemical supplier
Hazard Classification: Oxidizing solid (Category 2), Acute toxicity oral (Category 3), Carcinogenicity (Category 2)
Label Elements: Signal word: Danger; Pictograms: Skull and Crossbones, Flame over Circle, Health Hazard
Hazard Statements: May cause cancer by ingestion, strong oxidizer, toxic if swallowed, irritant to eyes/skin/respiratory system
Precautionary Statements: Avoid contact, do not breathe dust, keep away from combustibles, use only with appropriate protection
Chemical Name: Potassium Bromate
Concentration: > 99% by weight
Impurities/Additives: Minor traces of sodium or chloride (dependent on manufacturing source); not considered hazardous at typical levels
Inhalation: Move the exposed person to fresh air quickly, keep at rest, seek immediate medical attention for breathing difficulty
Skin Contact: Remove contaminated clothing, flush skin with plenty of water for at least 15 minutes, call a medical professional if irritation develops
Eye Contact: Rinse eyes with water for several minutes, remove contacts if present, continue rinsing, seek medical attention
Ingestion: Do not induce vomiting, rinse mouth, give water if alert, immediate medical attention recommended due to toxicity
Symptoms: Nausea, headache, dizziness, weakness, blue-tinged lips or skin, hemolysis (severe cases)
Suitable Extinguishing Media: Use water spray, flooding quantities of water, do not use dry chemical or foam
Unsuitable Media: Dry chemical, CO2, or foam may not cool fully or may cause decomposition
Hazards from Combustion: Releases bromine vapors, potassium oxides, corrosive and toxic fumes in fire
Special Protective Action: Firefighters need self-contained breathing apparatus, full turn-out gear, avoid run-off water contamination
Personal Protection: Wear chemical-resistant gloves, goggles, protective clothing, suitable respirator
Environmental Prevention: Block spillage from entering drains, soil, waterways; notify local authorities for significant spills
Cleanup Method: Scoop spilt material into containers for disposal, wash contaminated area with water, ventilate affected area well, avoid using combustible tools or sweeping methods that generate dust
Handling: Work in well-ventilated locations, avoid dust formation, do not use near heat, flames, or combustible material
Storage: Keep potassium bromate in tightly sealed containers, store in cool, dry, well-ventilated area, away from reducing agents, acids, organic substances and moisture
Shelf Life: Decomposition potential increases with age and exposure to moisture or light, periodic inspection advised
Exposure Limits: OSHA and ACGIH recommend lowest feasible exposure; NIOSH REL: 0.1 mg/m3 TWA (as bromate)
Engineering Controls: Exhaust ventilation, enclosed handling, minimize generation of dust; use closed systems
Personal Protective Equipment: Chemical splash goggles, lab coat or apron, nitrile or PVC gloves, approved respirator for dust
Hygiene Measures: Wash hands after handling, do not eat, drink, or smoke in work area, shower at shift’s end
Appearance: White crystalline powder or granules
Odor: Odorless
Odor Threshold: Not applicable
pH: Slightly acidic in solution
Melting Point: 350°C (decomposes)
Boiling Point: Decomposes before boiling
Solubility: Soluble in water (75 g/l at 25°C); practically insoluble in alcohol
Vapor Pressure: Not applicable
Density: 3.27 g/cm3
Partition Coefficient: Not available
Decomposition Temperature: Above 370°C
Chemical Stability: Stable in tightly sealed containers under normal conditions
Conditions to Avoid: Exposure to heat, moisture, shock, organic materials, reducing agents
Incompatible Materials: Organic substances, powdered metals, strong acids, combustibles, ammonium salts, hydrides
Hazardous Decomposition: Toxic bromine fumes, potassium oxide, oxygen gas
Hazardous Polymerization: Not known to undergo polymerization
Acute Toxicity: Oral (LD50 rat): 157 mg/kg
Chronic Effects: Classified as possible human carcinogen (IARC Group 2B); can damage kidneys and red blood cells
Routes of Exposure: Inhalation, ingestion, eye and skin contact
Symptoms: Nausea, vomiting, abdominal pain, headache, methemoglobinemia, hemolysis, acute renal failure
Sensitization: Not identified as a sensitizer
Mutagenicity and Carcinogenicity: Positive genotoxic and carcinogenic findings in animal studies, increased risk of cancer with chronic ingestion
Ecotoxicity: Highly toxic to aquatic life, fish (LC50 0.003 mg/L/96h); persistence documented in sediment and water bodies
Mobility: Highly mobile in water due to solubility
Bioaccumulation: Not expected to bioaccumulate but persistent due to oxidant characteristics
Degradability: Not readily biodegradable; slow reduction in environment
Other Adverse Effects: Bromate ion acts as an environmental contaminant, can damage aquatic organisms, causes disruption at low concentrations
Waste Treatment: Collect and place in chemical waste container, dilute and neutralize with reducing agents under controlled conditions
Disposal Method: Incinerate in approved hazardous waste incinerator or landfill after proper treatment as per local, state, and federal regulations
Contaminated Packaging: Rinse and handle as hazardous waste, avoid recycling without complete decontamination
Do Not: Release potassium bromate into drains or environment
UN Number: 1484
Shipping Name: Potassium Bromate
Transport Hazard Class: 5.1 (Oxidizer)
Packing Group: II
Labels: Oxidizer, Poison
Special Precautions: Securely sealed, upright containers, segregate from fuels, acids, organic or combustible cargo
Regulatory Transport: Subject to international and domestic regulations for hazardous materials; DOT, IATA, IMDG guidelines apply
OSHA: Regulated as highly hazardous substance
TSCA: Listed
SARA Title III - Section 313: Listed as toxic chemical subject to reporting
California Proposition 65: Identified as carcinogen; special warning requirements
International Inventories: Listed in EU EINECS (231-829-8), Japan ENCS, Canada DSL/NDSL
Other: Use banned or restricted in food processing in many jurisdictions due to health risk
