Product Name: Bronopol
Chemical Name: 2-Bromo-2-nitro-1,3-propanediol
Synonyms: Bronopol, BNPD, Myacide, Bronosol
CAS Number: 52-51-7
Uses: Preservative in industrial water systems, cosmetics, pharmaceuticals, personal care products, pulp and paper processing
Manufacturer Information: Refer to product packaging or supplier
Contact Details for Emergency: Refer to local Poison Control Center or regional chemical emergency response hotline
Classification: Acute Toxicity (Oral) Category 4, Skin Irritation Category 2, Eye Irritation Category 2A, Aquatic Acute Category 1
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation, very toxic to aquatic life
Precautionary Statements: Avoid breathing dust or fumes, wash hands thoroughly after handling, avoid release to the environment, wear protective gloves, eye and face protection
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Target Organs: Skin, eyes, digestive tract
Chemical Name: 2-Bromo-2-nitro-1,3-propanediol
Common Name: Bronopol
CAS Number: 52-51-7
Concentration: 99% or as specified on product packaging
Impurities: Not significant in technical grade product
Additives: Not stated for pure substance; for formulated products please refer to label or technical bulletin
Inhalation: Remove person to fresh air, seek medical attention if symptoms such as difficulty breathing or coughing happen
Skin Contact: Rinse with plenty of water, remove contaminated clothing, seek medical help if irritation or burning continues
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, keep eyelids open, get medical attention immediately
Ingestion: Rinse mouth, do not induce vomiting, call physician or poison center right away, never give anything by mouth to an unconscious person
Symptoms: Irritation, redness, pain, nausea, headache, breathing difficulty
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: Strong water jet
Specific Hazards: Fire may produce toxic gases such as hydrogen bromide, nitrogen oxides, carbon oxides
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, full protective gear
Special Precautions: Avoid vapors from decomposition, contain extinguishing runoff
Personal Precautions: Wear personal protective clothing, avoid breathing dust, provide adequate ventilation, prevent contact with skin and eyes
Environmental Precautions: Prevent further leakage or spillage into waterways, sewers, or soil
Methods for Containment: Use inert absorbent material, sweep and shovel into suitable container, do not create dusty conditions
Cleaning up: Dispose of in accordance with local, regional, national, and international regulations, wash contaminated area with water
Handling: Use personal protective equipment, avoid direct contact, prevent dust formation, use only in well-ventilated areas, keep away from food and beverages
Storage: Store in cool, dry, well-ventilated place, keep container tightly closed, store away from strong acids, strong bases, oxidizing agents, incompatible materials
Specific Requirements: Use corrosion-resistant containers, secure storage to prevent unauthorized access, protect from sunlight and moisture
Exposure Limits: No established occupational exposure limits for Bronopol
Engineering Controls: Provide local exhaust ventilation at points of dust generation, emergency showers and eyewash stations
Personal Protection: Chemical-resistant gloves, safety goggles, lab coat or apron, suitable respirator for dust or identified exposure risk
Hygiene Measures: Wash hands after handling, do not eat, drink, or smoke in areas of use, clean protective equipment after use
Appearance: White to off-white crystalline powder
Odor: Faint odor
pH: 5.0 (1% aqueous solution)
Melting Point: 130-132 °C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Solubility: Soluble in water, alcohol, slightly soluble in ethers
Partition Coefficient (n-octanol/water): -0.64
Vapor Pressure: Negligible
Density: 1.7 g/cm³
Decomposition Temperature: >140°C
Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: Heat, humidity, direct sunlight, incompatible materials such as strong oxidizing agents and strong bases
Possible Hazardous Reactions: May react violently with oxidizing materials, decomposes on heating giving toxic fumes
Hazardous Decomposition Products: Hydrogen bromide, nitrogen oxides, formaldehyde, carbon oxides
Acute Toxicity (Oral): LD50 (rat) 305 mg/kg
Acute Toxicity (Dermal): May cause irritation and sensitization
Skin Corrosion/Irritation: Causes skin irritation, possible dermatitis on prolonged or repeated contact
Serious Eye Damage/Irritation: Causes serious eye irritation, possible corneal damage
Inhalation: Dust may irritate respiratory system
Chronic Effects: May cause allergic skin reaction, respiratory sensitization not well evidenced in humans
Carcinogenicity: Not listed as a carcinogen by NTP, IARC, OSHA
Aquatic Toxicity: Very toxic to aquatic organisms, acute aquatic toxicity LC50 (Fish, 96h): 1.8 mg/L
Persistence and Degradability: Does not persist in environment under aerobic conditions
Bioaccumulation: Low potential for bioaccumulation, log Kow -0.64
Mobility in Soil: Mobile in soil due to water solubility
Other Adverse Effects: Possible impact on algae and daphnia populations at very low concentrations
Product Disposal: Dispose of in accordance with national and local regulations, do not discharge to surface water or sewage system
Contaminated Packaging: Dispose of as unused product unless thoroughly cleaned and recycled
Special Precautions for Disposal: Avoid environmental release, consult licensed waste disposal contractor
UN Number: 3241
Proper Shipping Name: 2-Bromo-2-nitropropane-1,3-diol
Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant, protect from moisture and physical damage during transport
Special Transport Precautions: Comply with all applicable transport regulations, label according to requirements
TSCA (USA): Listed
DSL (Canada): Listed
ECHA (EU): Registration required under REACH
OSHA: Hazardous chemical as defined by Hazard Communication Standard
WHMIS Classification (Canada): D2B (Toxic material causing other toxic effects)
Other Regulations: Subject to local and international reporting under water, workplace, and environmental safety laws
Labeling Requirements: Hazard pictograms, hazard and precautionary statements according to GHS/CLP
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