Product Name: Manganese Citrate
Chemical Formula: C12H10Mn3O14
Synonyms: Trisodium Manganese(III) Tricitrate, Manganese (II) Citrate
Recommended Uses: Laboratory reagent, micronutrient in agriculture, dietary supplement manufacturing
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Identified Use Restrictions: Not for food or drug use outside regulated manufacture, not for direct human consumption in raw form, restrict to qualified professionals or facilities
GHS Classification: Acute Oral Toxicity (Category 4), Eye Irritation (Category 2A), Skin Irritation (Category 2), Specific Target Organ Toxicity (single and repeated exposure, Category 2, nervous system)
Pictograms: Exclamation mark, Health hazard
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and serious eye irritation, may damage the nervous system through prolonged or repeated exposure
Precautionary Statements: Avoid breathing dust, wash hands thoroughly after handling, wear protective gloves/protective clothing/eye protection/face protection, do not eat/drink/smoke during use
Other Hazards: Dust may form explosive mixtures in air, chronic exposure linked to neurological symptoms
Component: Manganese Citrate
Chemical Formula: C12H10Mn3O14
CAS Number: 10024-66-5
Concentration: 98-100%
Impurities: Trace metals under 1% (e.g. calcium, magnesium), moisture content below 2%
Inhalation: Remove person to fresh air, keep at rest in a position comfortable for breathing, seek medical attention if symptoms persist
Skin Contact: Thoroughly rinse skin with water, remove contaminated clothing, seek medical attention for persistent irritation
Eye Contact: Immediately flush eyes with copious water for at least fifteen minutes lifting eyelids occasionally, remove contact lenses if present, seek medical examination
Ingestion: Rinse mouth with water, never give anything by mouth to an unconscious person, seek immediate medical help
Most Important Symptoms/Effects: Respiratory irritation, skin/eye pain and redness, gastrointestinal upset, neurological symptoms in severe long-term exposures
Immediate Medical Attention: Required for significant inhalation, ingestion, or eye contact
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide to address surrounding fire
Specific Hazards: Product decomposes on excessive heating emitting manganese oxides and carbon oxides, may cause toxic fumes
Special Protective Equipment for Firefighters: Wear self-contained breathing apparatus and protective clothing, take precautions against dust explosions in case of fine particles
Thermal Decomposition Products: Manganese oxides, carbon monoxide, carbon dioxide
Advice for Firefighters: Avoid inhalation of fumes, cool containers with water spray to prevent rupture
Personal Precautions: Wear suitable protective gear including gloves, goggles, and respirators for dust, ventilate area
Environmental Precautions: Prevent further leakage or spillage if safe to do so, avoid entry into soil, waterways, or drains
Cleanup Methods: Pick up and transfer spilled material into suitable containers for recovery or disposal, avoid raising dust, clean surface thoroughly to remove residues
Reporting Requirements: Notify environmental authorities if significant quantities enter watercourses or public sewer
Precautions for Safe Handling: Avoid skin and eye contact, minimize dust generation and accumulation, handle only with proper ventilation, do not eat or drink in processing areas
Conditions for Safe Storage: Store in tightly closed original container, keep in cool, dry, well-ventilated place away from incompatible substances including strong acids and oxidizers
Storage Class: Chemical storage – non-flammable solid
Incompatible Materials: Strong acids, oxidizing agents, bases
Occupational Exposure Limits: OSHA PEL (as Manganese compounds): 0.1 mg/m³ (ceiling); ACGIH TLV: 0.02 mg/m³ (respirable); 0.1 mg/m³ (inhalable)
Engineering Controls: Enclosed processes or local exhaust ventilation to control airborne dust, maintain workplace below permitted levels
Personal Protection Equipment (PPE): Safety glasses or goggles, chemical-resistant gloves (nitrile, PVC), protective clothing, NIOSH-approved dust respirators for dusty conditions
Hygiene Measures: Wash hands after handling, avoid contact with skin and eyes, remove contaminated clothing for laundering
Appearance: Pale pink or light brown powder
Odor: Odorless
Molecular Weight: 480.96 g/mol
pH (1% aqueous solution): 5.5 - 7.0
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes)
Solubility: Soluble in water (approx. 10g/L at 20°C)
Vapor Pressure: Not applicable
Flash Point: Non-flammable
Bulk Density: Approx. 0.7 - 0.9 g/cm³
Partition Coefficient: Not determined
Autoignition Temperature: Not classified as combustible solid
Other Properties: Stable under normal conditions, dust produced by handling may be explosive in air at high concentration
Chemical Stability: Stable under recommended storage and handling conditions
Possibility of Hazardous Reactions: Reacts with strong acids releasing carbon dioxide, hazardous manganese compounds may form under extreme conditions
Incompatible Materials: Strong oxidizers, strong acids, reducing agents
Hazardous Decomposition Products: Manganese oxides, carbon monoxide, carbon dioxide in fire or at high temperature
Conditions to Avoid: Excessive heat, open flames, uncontrolled dust accumulation, contact with incompatible chemicals
Likely Routes of Exposure: Inhalation, ingestion, skin, eye contact
Acute Effects: Can cause irritation to respiratory tract, stomach upset on ingestion, redness on skin and eyes
Chronic Effects: Long-term inhalation of manganese compounds may result in neurological symptoms similar to Parkinson’s disease (manganism), mood and motor disturbances
Acute Toxicity Data: Oral LD50 (rat): >2000 mg/kg
Skin Corrosive/Irritation: Causes moderate skin irritation
Eye Damage/Irritation: Severe eye irritant
Respiratory or Skin Sensitization: Not classified as a sensitizer
Carcinogenicity: Not listed by IARC, NTP, or OSHA as carcinogen
Reproductive Toxicity: Not identified in standard testing, but excessive or chronic exposure to manganese linked to reproductive issues in animal studies
Other Effects: In high doses, systemic toxicity can occur, detailed healthcare monitoring recommended for occupational exposure
Environmental Fate: Low mobility in soil, binds strongly to soils and sediments, persisting in aquatic and terrestrial environments
Aquatic Toxicity: Harmful to aquatic organisms at concentration above standard regulatory limits, may lead to accumulation in aquatic plants and animals
Persistence and Degradability: Not readily biodegradable, becomes part of natural manganese cycle
Bioaccumulative Potential: Potential for bioaccumulation in plants and animals, especially aquatic organisms
Mobility in Soil: Moderate mobility depending on soil pH and organic content
Other Adverse Effects: Avoid uncontrolled discharge to water, use proper containment
Disposal Methods: Dispose in accordance with local, state, and federal environmental control regulations, use licensed chemical waste disposal facility
Product: No discharge to sewer or open environment, incineration or landfill with proper regulation compliance
Contaminated Packaging: Empty containers must be handled with care; triple rinse and offer recycling or proper landfill disposal
Special Precautions: Avoid dust emission during disposal operations, do not reuse container for food or drink
UN Number: Not regulated for transport, may need to be classified depending on quantity and local rules
Transport Hazard Class: Not classified as hazardous under major international regulations (ADR/RID, IMDG, IATA)
Packing Group: Not assigned
Environmental Hazards: Not classified as marine pollutant
Special Precautions: Avoid container rupture, ensure secure packaging, transport with compatible loads
International Inventory Status: Listed on TSCA (USA), EINECS/ELINCS (EU), DSL (Canada), AICS (Australia)
OSHA Hazard Communication: Classified as hazardous, specific training required for handling
SARA Title III: Not listed as a hazardous substance, but manganese is listed under Section 313 as toxic chemical for reporting
WHMIS (Canada): D2A - Very toxic material causing other toxic effects (chronic exposure)
California Proposition 65: Not listed
Other Regulations: Follow workplace and environmental health and safety guidelines; ensure users have access to full MSDS before handling
