© 2026 Alchemist Worldwide Ltd,
All Right Reserved
Product Name: Manganese Carbonate
Chemical Formula: MnCO3
CAS Number: 598-62-9
Synonyms: Manganous carbonate, Carbonic acid, manganese(2+) salt
Recommended Use: Used in ceramics, catalyst manufacturing, feed additive, dietary supplements, pigments, and fertilizers
Supplier: Local or institutional supplier contact information attached to batch delivery based on the source
Emergency Phone: Refer to site or regional emergency contact numbers associated with hazardous chemical handling
Date of Last Revision: Confirmed from most recent procurement or handling batch documentation
GHS Classification: Acute Toxicity (Oral) Category 4, Eye Irritant Category 2B, Specific Target Organ Toxicity (Repeated Exposure), Hazardous to the aquatic environment – Chronic Category 3
Signal Word: Warning
Hazard Statements: May cause respiratory irritation, may cause harm if swallowed, suspected of damaging fertility or the unborn child by prolonged exposure, causes eye irritation, hazardous to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing dust, wash hands thoroughly, do not eat, drink, or smoke during use, use personal protective equipment, avoid release to the environment
Hazard Symbol: Exclamation Mark, Health Hazard, Environment
Routes of Exposure: Inhalation, ingestion, eye, skin contact
Symptoms: Coughing, sore throat, eye redness, abdominal discomfort, headaches from repeated inhalation exposure, aggravated asthma or lung irritation, skin or eye burning sensation
Chemical Name: Manganese Carbonate
CAS Number: 598-62-9
Concentration: Typically over 97% by weight for industrial grade
Impurities: Trace amounts of other manganese compounds or carbonates, silicon dioxide, iron, or heavy metal oxides depending on mining and refining source
Other Name: None significant in commercial grade products, unless used with extenders or processing aids in specialty formulations
Inhalation: Remove to fresh air, keep patient at rest, provide oxygen or artificial respiration as necessary, seek medical attention for persistent symptoms such as coughing or headache
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with soap and water, monitor for irritation or rash, consult healthcare if skin changes persist
Eye Contact: Flush eyes gently with plenty of clean running water for at least 15 minutes, lift eyelids carefully, seek medical evaluation if discomfort or redness continues
Ingestion: Rinse mouth thoroughly, do not induce vomiting unless advised by medical personnel, give water if person is conscious, seek prompt medical assistance with any significant swallowing or if feeling unwell
Most Important Symptoms: Breathing difficulties, burn to eyes, headache, nausea, fatigue, discomfort in swallowing, symptoms may be delayed or increase with extended exposure
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray for surroundings (not directly on product dust), consider type of surrounding fire
Unsuitable Media: High-pressure water streams may disperse powder or create further contamination risk
Hazardous Combustion Products: Manganese oxides, carbon oxides, toxic fumes possible at high combustion temperatures
Protective Equipment: Self-contained breathing apparatus, full protective clothing, avoid inhaling any decomposition fumes
Firefighting Instructions: Evacuate area, use water spray to cool containers exposed to fire, prevent runoff from entering drains or watercourses, handle powder with tools to control airborne spread if safe, avoid close-contact direct dousing
Personal Precautions: Wear appropriate respirator, chemical-resistant gloves, goggles, and protective suit, avoid creating dust clouds, do not touch or walk through spilled material without protection
Environmental Precautions: Block entry to sewers or waterways, contain spillage with earth, sand, or inert absorbent, notify local authorities in case of extensive soil or water contamination
Cleanup Methods: Use non-sparking tools, sweep or shovel material into suitable labeled containers for recovery or disposal, thoroughly ventilate area where dust accumulation occurred, clean contaminated surfaces with water, manage waste as per environmental safety protocols
Safe Handling: Avoid breathing dust, wash thoroughly after handling, minimize direct contact with product, use local exhaust or general ventilation to control dust exposure
Fire Prevention: Store away from sources of ignition, avoid open flames, prevent dust accumulation, take measures to prevent static charge buildup in transfer or decanting operations
Incompatible Materials: Strong acids (formation of carbon dioxide gas), strong oxidizing agents, ammonium salts may intensify fire risk
Storage Conditions: Keep container tightly closed in a cool, dry, and well-ventilated area, avoid humidity and water contact, segregate from incompatible substances
Packaging Materials: Use containers that prevent ingress of moisture and are able to withstand the weight of dense powder, keep packaging labeled and secure at all times
Occupational Exposure Limits: OSHA PEL for manganese compounds (as Mn): 5 mg/m3 ceiling value; ACGIH TLV: 0.02 mg/m3 (respirable fraction), 0.1 mg/m3 (inhalable fraction)
Engineering Controls: Use local exhaust ventilation or other engineering methods to keep airborne levels below recommended exposure limits, enclosed handling systems for bulk powders, clean-up dust deposits periodically
Respiratory Protection: NIOSH-approved particulate respirator for dust-producing tasks, higher-level protection during large-scale or emergency releases
Hand Protection: Chemical resistant gloves (nitrile, rubber, or equivalent) with regularly checked integrity
Eye Protection: Tightly fitting goggles or full face shield
Skin Protection: Long sleeve lab coat or protective garment, avoid loose clothing, shower after working with large quantities
Hygiene Measures: Wash hands and exposed skin before eating, drinking, using tobacco or restroom, remove contaminated clothing, never reuse containers for food or water
Appearance: Pale pink to light brown crystalline or powder
Odor: Odorless
pH: Slightly basic to neutral in water suspension
Melting Point: Decomposes at 200°C to manganese oxide and carbon dioxide
Boiling Point: Not applicable due to decomposition
Solubility: Very slightly soluble in water, increases with presence of carbon dioxide, soluble in dilute acids with release of CO2 gas
Density: Around 3.12 g/cm3
Flash Point: Not flammable as a solid
Explosive Limits: Not relevant for this inorganic powder
Vapor Pressure: Not applicable
Partition Coefficient: Not measured due to very low organic solubility
Chemical Stability: Stable under general handling and recommended storage, susceptible to slow moisture absorption over time
Reactivity: Reacts with acids to release carbon dioxide gas, otherwise relatively inert
Conditions to Avoid: Exposure to strong acids, high humidity environments, direct sunlight, strong oxidizers
Hazardous Decomposition Products: On heating, produces manganese oxide and carbon dioxide, possible trace manganese fumes at high temperatures
Polymerization: No hazards expected regarding polymerization under normal conditions
Acute Toxicity: May cause harmful effects if swallowed (LD50 oral rat: approx. 1,200 mg/kg), dust inhalation risks include respiratory tract irritation
Chronic Exposure: Extended exposure to manganese dust linked to nervous system effects (manganism), memory loss, behavioral changes, or impaired motor function
Skin Contact: Prolonged or repeated contact may cause mild irritation
Eye Contact: May cause moderate irritation, redness, tearing
Carcinogenicity: Not classified as human carcinogen by IARC, NTP, or OSHA
Mutagenicity: No significant data indicating mutagenic effects in humans
Sensitization: Reports of skin or respiratory reaction rare, but precaution suggested for sensitive individuals
Reproductive Effects: Possible risk from prolonged occupational exposure; not well documented in humans, but animal studies indicate effects at high doses
Environmental Impact: Harmful to aquatic organisms at high concentrations, persistent in environment due to low solubility
Bioaccumulation: Not anticipated to bioaccumulate significantly, but may build up in sediment
Mobility in Soil: Low, binds strongly to soil particles, leaching potential generally limited
Persistence and Degradability: Inorganic, does not degrade, manganese cycles in soil-water systems
Aquatic Toxicity: LC50 for fish: between 10 and 100 mg/L, may cause growth impairment or death in aquatic species at elevated concentrations
Other Adverse Effects: May contribute to long-term contamination of local environments around mining, manufacturing, or improper disposal sites
Waste Handling: Collect all waste in labeled, sealed containers for disposal according to local, regional, and national regulations
Disposal Methods: Do not discharge into drains or surface water, contact licensed hazardous waste disposer, consider recovery or recycling options where infrastructure permits
Contaminated Packaging: Containers should not be reused, should be triple rinsed and either sent for hazardous material recycling or disposal
Special Instructions: All personnel involved in disposal processes need proper PPE and training, maintain records of amounts and methods used for waste transfer and treatment
UN Number: Not classified as a dangerous good according to most major transport regulations for bulk powder (verify per local jurisdiction)
Transport Hazard Class: Not regulated for ground, air, or sea shipment in general; check carrier specifications and customer country requirements
Packing Group: Not assigned
Marine Pollutant: Not listed as marine pollutant, but avoid released spillage into sea or water during transport
Transport Labels: Ensure product label, GHS hazard pictograms, and emergency information are clearly visible for all commercial shipments
Special Precautions: Protect packaging against moisture and strong shocks, secure containers in a manner to prevent topple or damage in transit, handle as per industrial hygiene practices
OSHA: Covered under OSHA Hazard Communication Standard for hazardous chemicals, Material Safety Data Sheet and safety training mandatory in workplace
TSCA (Toxic Substances Control Act): Listed and permitted for import, use, sale in United States subject to regulations
REACH Registration (Europe): Registered as chemical substance, subject to tonnage-based evaluation and restrictions for occupational exposure
Canadian DSL/NDSL: Included on Canadian Domestic Substances List for recognition as commercial chemical
SARA Title III: Not considered extremely hazardous under SARA 302, but covered for reporting requirements due to manganese content
WHMIS (Canada): Designated under applicable chemical hazard classes for workplace labeling and training
Other Regulations: Compliance required for national environmental, health and safety frameworks in all importing or consuming countries, reference local rules for updated MSDS formats, product-specific labeling, export restrictions or waste management rules
