Material Safety Data Sheet: Dihydroxytartaric Acid Disodium Salt Dihydrate

Identification

Chemical Name: Dihydroxytartaric Acid Disodium Salt Dihydrate
Synonyms: Disodium 2,3-Dihydroxybutanedioate Dihydrate
CAS Number: 6106-24-7
Molecular Formula: C4H4Na2O6·2H2O
Molecular Weight: 246.06 g/mol
Recommended Use: Laboratory chemicals, analysis, research
Supplier Details: Include name, address, phone, and emergency contact for supplier

Hazard Identification

GHS Classification: Not classified as hazardous under GHS criteria
Pictogram: No symbol required
Signal Word: None
Hazard Statements: No significant hazards known
Precautionary Statements: Avoid contact with skin and eyes. Handle in a well-ventilated area. Prevent dust formation.
Other Hazards: Dust may cause mechanical irritation to respiratory tract.

Composition / Information on Ingredients

Component: Dihydroxytartaric Acid Disodium Salt Dihydrate
Concentration: 100% (Pure Substance)
CAS Number: 6106-24-7
Impurities: No significant impurities expected at specified use and purity.

First Aid Measures

Inhalation: Move person to fresh air, support breathing if needed, seek medical advice for continued discomfort.
Skin Contact: Remove contaminated clothing. Wash with soap and plenty of water. Get medical attention if irritation persists.
Eye Contact: Rinse thoroughly with water for at least 15 minutes, keep eyelids open, remove contact lenses if present, get ocular evaluation for severe irritation.
Ingestion: Rinse mouth with water, never give anything by mouth if victim is unconscious, seek medical attention for persistent symptoms.
Special Advice: Treat symptomatically and provide supportive care.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, appropriate foam
Unsuitable Extinguishing Media: No unsuitable agents known for this substance
Hazardous Combustion Products: Carbon oxides, sodium oxides under fire conditions
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing, avoid dust inhalation
Specific Fire Hazards: Powder/dust can form explosive mixture with air when dispersed; minimize dust generation in storage or handling.

Accidental Release Measures

Personal Precautions: Wear protective equipment including gloves, goggles, and respiratory protection if risk of dust formation exists.
Environmental Precautions: Prevent further leakage or spillage; do not allow runoff to enter drains or waterways.
Methods for Cleaning Up: Sweep up and collect into suitable containers for disposal, vacuum with HEPA filter if available, moisten with water to reduce dust.
Disposal: Dispose contents in accordance with local, regional, and national regulations.

Handling and Storage

Safe Handling: Use local exhaust, avoid dust formation, wear suitable personal protection, wash hands after use
Safe Storage: Keep in tightly closed container, store in cool and dry place, protect from incompatible substances and humidity
Incompatibles: Strong acids, strong oxidizers; separation from these materials limits risks of hazardous reactions.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established permissible exposure limits for this substance.
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls for dust control.
Respiratory Protection: NIOSH-approved particulate respirator if dusting occurs or exposure limits are exceeded.
Skin Protection: Protective gloves made from compatible chemically resistant material.
Eye Protection: Safety goggles or face shield for eye and face protection.
Hygiene: Wash hands after handling. Do not eat, drink, or smoke during work. Maintain proper industrial hygiene.

Physical and Chemical Properties

Physical State: Solid
Appearance: White crystalline powder
Odor: Odorless
pH (1% solution): Approximately 6-8
Melting Point: Not available (compound decomposes before melting)
Boiling Point: Not applicable
Flash Point: Not flammable under standard test methods
Solubility: Soluble in water; forms a clear solution
Density: Approximately 1.9 g/cm³
Vapor Pressure: Not applicable
Partition Coefficient: Not determined
Evaporation Rate: Not volatile
Decomposition Temperature: Slowly decomposes at higher temperatures, especially under moist conditions.

Stability and Reactivity

Chemical Stability: Stable when stored under recommended conditions
Possibility of Hazardous Reactions: No data indicates significant hazardous polymerization or reaction under normal usage; reacts with strong oxidizers
Conditions to Avoid: Exposure to excessive heat, moisture, incompatibles
Incompatible Materials: Strong acids, strong oxidizers may cause vigorous reaction or decomposition
Hazardous Decomposition Products: Sodium oxides, carbon oxides, and other irritating gases upon excessive heating or contact with strong chemicals.

Toxicological Information

Acute Toxicity: No significant adverse effects expected based on structure and current data; LD50 not established for this specific compound
Routes of Exposure: Inhalation, ingestion, skin or eye contact
Symptoms of Exposure: May cause mild skin, eye, or respiratory irritation; no data for sensitization or significant organ effects
Chronic Exposure: Chronic health effects are unlikely under normal laboratory or industrial handling with appropriate controls
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen
Mutagenicity, Reproductive Toxicity: No data indicating genotoxic or reproductive risk

Ecological Information

Ecotoxicity: Not expected to be hazardous to the environment in small laboratory quantities; no detailed ecotoxicological data available
Persistence and Degradability: Biodegradation expected for minor releases; decomposes in soil and water
Bioaccumulative Potential: No potential for significant bioaccumulation due to solubility and breakdown in environment
Mobility in Soil: Highly soluble; moves freely in aqueous phases, limited binding to soils
Other Adverse Effects: No ozone depletion or endocrine disruption potential identified

Disposal Considerations

Disposal Methods: Follow all federal, state, and local regulations; dispose as non-hazardous laboratory waste unless contaminated
Waste Packaging: Rinse, decontaminate, or destroy empty containers as required by regulations; do not reuse packaging for other materials
Special Precautions: Prevent release into environment where large quantities are involved; consider treatment or neutralization if local rules require

Transport Information

UN Number: Not regulated for transport
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Proper Shipping Name: Not regulated as a dangerous good
Marine Pollutant: Not listed
Special Transport Precautions: Use packaging that avoids moisture ingress and protects against physical damage; transport in compliance with local, national, and international regulations

Regulatory Information

Inventory Status: Listed in country-specific chemical inventories such as TSCA, EINECS/ELINCS, DSL, AICS, and others where required
Labeling Requirements: Not classified as hazardous; GHS labeling not required
SARA Title III (Sections 302/313): Not subject to reporting
OSHA Regulations: General safe workplace guidance applies; no substance-specific standards
Other Regulations: Check additional state or national environmental regulations for disposal or volume reporting as may be required