MSDS – Dipotassium L-(+)-Tartrate

Identification

Product Name: Dipotassium L-(+)-Tartrate
Synonyms: Potassium tartrate; Dipotassium tartrate monohydrate
Chemical Formula: C4H4O6K2
CAS Number: 921-53-9
Product Use: Laboratory chemical, food additive, reagent
Supplier: Refer to specific vendor label for exact supplier and contact
Emergency Contact: Refer to local Poison Control Center or emergency services

Hazard Identification

Classification: Not classified as hazardous under GHS guidelines
Signal Word: Not required
Hazard Statements: May cause skin and eye irritation in sensitive individuals
Pictograms: Not required by GHS
Precautionary Statements: Avoid dust formation; wash thoroughly after handling
NFPA Ratings: Health 1; Flammability 0; Reactivity 0

Composition / Information on Ingredients

Chemical Name: Dipotassium L-(+)-Tartrate
Common Name: Potassium tartrate
Concentration: 98% or higher
Impurities or Stabilizing Additives: Typically less than 1% water (monohydrate)
CAS Number: 921-53-9

First Aid Measures

General Advice: Remove from exposure. Seek medical attention if symptoms persist.
Inhalation: Move person to fresh air. Seek medical attention if respiratory irritation occurs.
Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing.
Eye Contact: Flush with plenty of water for at least 15 minutes; seek medical attention if irritation persists.
Ingestion: Rinse mouth with water; do not induce vomiting unless directed by a medical professional.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Special Hazards: Emits potassium oxides and carbon oxides under fire conditions
Protective Gear for Firefighters: Wear self-contained breathing apparatus and protective clothing
Additional Information: Non-combustible but can decompose on heating to produce corrosive and toxic fumes

Accidental Release Measures

Personal Precautions: Avoid inhalation of dust; use appropriate protective equipment
Spill Cleanup: Sweep up and place in suitable closed containers for disposal; ventilate area
Environmental Precautions: Prevent release to sewers or waterways
Reference to Other Sections: For disposal, see section on Disposal Considerations

Handling and Storage

Safe Handling: Use in a well-ventilated area; avoid dust formation; avoid contact with skin and eyes
Storage Conditions: Store tightly closed in a cool, dry place away from incompatible substances
Incompatible Materials: Acids, strong oxidizing agents
Packaging Materials: Use containers that protect from moisture and physical damage

Exposure Controls and Personal Protection

Exposure Limits: No OSHA, ACGIH, or NIOSH exposure limits established
Engineering Controls: Use general exhaust ventilation to minimize dust
Personal Protective Equipment:

• Respiratory Protection: Dust mask or respirator if dust generation is likely
• Skin Protection: Protective gloves and clean body-covering clothing
• Eye Protection: Safety glasses or goggles

Physical and Chemical Properties

Appearance: White crystalline powder
Odor: Odorless
Molecular Weight: 226.27 g/mol
Melting Point: Decomposes above 230°C
Solubility in Water: Soluble (approximately 50 g/L at 20°C)
pH (1% solution): 7.0 – 8.0
Boiling Point: Not applicable (decomposes upon heating)
Vapor Pressure: Not available (solid material)
Density: Approximately 1.984 g/cm³
Bulk Density: Not available
Partition Coefficient (n-octanol/water): Not available

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Hazardous Reactions: None under normal use
Conditions to Avoid: Excessive heat, humidity, incompatible materials
Incompatible Materials: Strong oxidizing agents, acids
Hazardous Decomposition Products: Potassium oxides, carbon oxides

Toxicological Information

Acute Toxicity: LD50 (oral, rat): > 2000 mg/kg (low toxicity expected based on available data)
Skin Irritation: May cause mild irritation after prolonged exposure
Eye Irritation: May cause temporary irritation
Respiratory Sensitization: Not classified
Carcinogenicity: No components listed as carcinogen by IARC, NTP, or OSHA
Mutagenicity: Not known
Reproductive Toxicity: Not known
Chronic Effects: Prolonged exposure could lead to skin or respiratory irritation in sensitive individuals

Ecological Information

Ecotoxicity: Not expected to be harmful to aquatic life at concentrations typically released
Persistence and Degradability: Readily biodegradable in the environment
Bioaccumulative Potential: Not expected to bioaccumulate
Mobility in Soil: High water solubility; likely to migrate in water
Other Adverse Effects: Discharge in large quantities could alter local water pH or potassium levels

Disposal Considerations

Waste Treatment Methods: Dispose of in accordance with local, regional, and national regulations
Contaminated Packaging: Clean before recycling or discarding
Environmental Precautions: Avoid release to the environment
Recommended Disposal: Incineration or landfill at approved facilities suitable for non-hazardous chemicals

Transport Information

UN Number: Not classified as dangerous for transport
Proper Shipping Name: Not regulated
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Special Precautions: Avoid container damage and keep dry during transit
Environmental Hazards: None identified

Regulatory Information

OSHA Status: Not hazardous under OSHA Hazard Communication Standard
TSCA: Substance listed
SARA Title III: Not subject to reporting under Sections 302, 304, 311/312, or 313
California Prop 65: Not listed
EINECS Status: Listed (EINECS Number: 213-074-7)
REACH: Exempted or registered according to regulatory requirements in the EU
Other National Regulations: Compliant with applicable chemical control laws and food additive regulations for most jurisdictions; check local requirements