© 2026 Alchemist Worldwide Ltd,
All Right Reserved
Product Name: Manganese(II) chloride
Chemical Formula: MnCl₂
Synonyms: Manganous chloride, Manganese dichloride
Recommended Use: Laboratory reagent, industrial chemical processes
Manufacturer Information: Provided by supplier or distributor
Emergency Contact: Local emergency number, poison control
CAS Number: 7773-01-5
Classification: Acute toxicity (Oral, Category 4), Eye irritation (Category 2A), Skin irritation (Category 2)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, may cause respiratory irritation
Precautionary Statements: Wash thoroughly after handling, do not breathe dust, wear protective gloves/eye protection, avoid release to environment
Pictograms: Exclamation mark
Chemical Name: Manganese(II) chloride
Synonyms: Manganous chloride
Concentration: 98–100%
CAS Number: 7773-01-5
Impurities: Trace contaminants may be present based on manufacturing conditions
Inhalation: Move person to fresh air, seek medical attention if symptoms persist
Skin Contact: Wash with soap and water, remove contaminated clothing, medical attention if irritation develops
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, get prompt medical advice
Ingestion: Rinse mouth, do not induce vomiting without medical advice, seek medical help
Most Important Symptoms: Irritation of eyes, skin, respiratory tract, gastrointestinal discomfort if swallowed
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, foam, or water spray
Special Hazards: Thermal decomposition produces toxic and corrosive fumes of hydrogen chloride and manganese oxides
Protective Equipment: Firefighters wear self-contained breathing apparatus and protective clothing
Advice: Keep upwind, cool containers with water to prevent bursting
Personal Precautions: Wear appropriate protective gear, avoid dust formation, ensure adequate ventilation
Environmental Precautions: Prevent product from entering drains, waterways, or soil
Cleanup Methods: Collect spilled material using non-sparking tools, sweep up, place in suitable closed container for disposal, wash area with water, ventilate region
Handling: Use only in well-ventilated areas, avoid contact with skin, eyes, and clothing, do not breathe dust
Hygiene Practices: Always wash hands before eating, drinking, or smoking after handling
Storage: Store in tightly sealed original container in a cool, dry, well-ventilated area away from incompatible substances like strong acids and oxidizers, avoid moisture and freezing
Exposure Limits: Occupational exposure limits set by OSHA (0.2 mg/m³ for manganese fume)
Engineering Controls: Use adequate ventilation, local exhaust
Respiratory Protection: Use suitable NIOSH-approved respirator if exposure limits are exceeded
Eye Protection: Chemical safety goggles
Skin Protection: Wear suitable protective gloves and lab coat
Other Protection: Wash contaminated clothing before reuse, eyewash and safety shower should be accessible
Appearance: Pale pink crystalline solid
Odor: Odorless
Odor Threshold: Not determined
pH: 4.0 (50 g/l, water, 20°C)
Melting Point: 650°C
Boiling Point: 1,195°C (decomposes)
Flash Point: Not applicable
Evaporation Rate: Not applicable
Flammability: Non-flammable
Vapor Pressure: Not available
Vapor Density: Not available
Specific Gravity: 2.98 (water = 1)
Solubility: Soluble in water, alcohol, insoluble in ether
Partition Coefficient: Not available
Viscosity: Not applicable
Stability: Stable under recommended storage conditions
Reactivity: Reacts with strong acids to release hydrogen chloride gas
Incompatible Materials: Oxidizing agents, strong acids, moisture
Hazardous Decomposition Products: Hydrogen chloride, manganese oxides
Polymerization: Does not occur under normal handling and storage
Acute Toxicity: Harmful if swallowed or inhaled, oral LD50 (rat): 1484 mg/kg
Skin Irritation: Causes skin irritation with prolonged or repeated exposure
Eye Irritation: Risk of serious eye irritation
Respiratory Effects: Irritation of respiratory tract, possible effects with high-level exposure including headaches, nausea
Chronic Effects: Prolonged exposure may lead to manganese toxicity with neurological symptoms
Carcinogenicity: Not listed as carcinogen by IARC, ACGIH, NTP or OSHA
Aquatic Toxicity: Harmful to aquatic life with possible long-term adverse effects
Persistence and Degradability: Manganese compounds are not rapidly degraded, may accumulate in environment
Bioaccumulation: Potential exists since manganese bioaccumulates in aquatic organisms
Mobility in Soil: May leach through soil to groundwater if uncontrolled release occurs
Other Adverse Effects: Large releases can affect drinking water and food chains
Waste Disposal: Dispose of in accordance with local, regional, and national regulations, contact licensed waste disposal contractor to discard contaminated materials
Handling of Containers: Empty containers may retain hazardous residues; handle with care, rinse well before disposal
Environmental Caution: Do not discharge into drains, surface water, or soil
UN Number: 3077
Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (Manganese chloride)
Transport Hazard Class: 9
Packing Group: III
Marine Pollutant: Yes
Special Precautions: Ensure containers are tightly sealed and protected from damage, transport according to local and international regulations
TSCA (United States): Listed
REACH (EU): Pre-registered substance
OSHA Hazardous Chemical: Yes
SARA 313: Subject to reporting due to manganese content
WHMIS (Canada): Classified under controlled product regulations
Other Regulations: Subject to chemical safety assessment procedures and state or provincial worker protection acts
