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Material Safety Data Sheet (MSDS) for Sodium Ascorbate / Vc Sodium / Sodium Ascorbate

1. Identification

Product Name: Sodium Ascorbate
Chemical Name: Sodium L-ascorbate
Synonyms: Vitamin C Sodium Salt, Vc Sodium, L-Ascorbic Acid Monosodium Salt
CAS Number: 134-03-2
Recommended Use: Used as a food additive, antioxidant, dietary supplement, and laboratory reagent
Supplier: Manufacturer or distributor details as per packaging
Emergency Contact: Refer to label or product sheet for updated emergency information

2. Hazard Identification

Classification: Not hazardous according to OSHA Hazard Communication Standard, but may cause mild irritation to eyes and skin
Hazard Statements: Irritating to eyes, may cause mild respiratory or skin sensitization
Signal Word: None required under GHS
Pictograms: None mandated
Precautionary Statements: Avoid inhaling dust, avoid contact with eyes and skin, wash thoroughly after handling
Other Hazards: Fine powders may form combustible dust mixtures with air
Potential Health Effects: Short-term exposure may cause eye and respiratory irritation; prolonged skin contact could generate minor dryness or rash

3. Composition / Information on Ingredients

Chemical Name: Sodium Ascorbate
Common Name: Vitamin C Sodium Salt
Concentration: Typically >99% pure
Impurities: May contain trace water or residual byproducts from synthesis

4. First Aid Measures

Inhalation: Remove person to fresh air; seek medical attention if symptoms persist
Skin Contact: Wash with plenty of soap and water; remove contaminated clothing
Eye Contact: Rinse immediately with water for several minutes, lifting eyelids; obtain medical attention if irritation develops
Ingestion: Rinse mouth thoroughly; give water to drink; do not induce vomiting; seek advice if uncomfortable
Important Notes: Show chemical label or packaging to emergency personnel; treat symptomatically

5. Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide
Unsuitable Extinguishing Media: High-pressure water streams can scatter dust
Specific Hazards: Product can form combustible dust clouds; thermal decomposition may release irritating vapors (carbon oxides and sodium compounds)
Protective Equipment for Firefighters: Firefighters should wear self-contained breathing apparatus and full protective gear
Firefighting Instructions: Move containers from fire area if safe, avoid inhalation of combustion products

6. Accidental Release Measures

Personal Precautions: Avoid dust formation, ensure adequate ventilation, use personal protective equipment
Environmental Precautions: Prevent further leakage or spillage; avoid discharge into drains, water courses, or soil
Cleanup Methods: Sweep or vacuum up material gently to minimize dust; place in a suitable closed container for disposal; wash spill site with soap and water after clean-up
Disposal: Waste must be disposed according to local, state, and federal regulations

7. Handling and Storage

Handling: Use with adequate ventilation to avoid dust; avoid breathing dust and contact with skin or eyes; avoid creating airborne dust; do not eat, drink, or smoke when using
Storage: Keep tightly closed in a dry, cool, well-ventilated place; protect from moisture, heat, and direct sunlight; store away from strong oxidizers and acids; avoid container damage or spillage
Incompatibilities: Strong oxidizing agents, acids, and reducing agents

8. Exposure Controls and Personal Protection

Occupational Exposure Limits: No OSHA or ACGIH exposure limits established
Engineering Controls: Use local exhaust ventilation to minimize dust formation
Eye Protection: Safety glasses with side shields or chemical splash goggles
Skin Protection: Protective gloves; lab coat or protective clothing as necessary
Respiratory Protection: Approved particulate respirator in situations of dust formation or insufficient ventilation
Hygiene Measures: Wash thoroughly after handling; remove contaminated clothing and wash before reuse; do not expose food or smoking materials to the product

9. Physical and Chemical Properties

Appearance: White to pale yellow crystalline powder
Odor: Odorless or slight citrus smell
Odor Threshold: Not determined
pH Value: 7.0–8.0 (5% aq. solution)
Melting Point/Range: Decomposes above 220°C
Boiling Point: Not applicable
Flash Point: Not applicable
Evaporation Rate: Not applicable
Flammability: Fine dust or powder may combust when dispersed in air and exposed to ignition source
Explosion Limits: Dust may present explosion risk in air
Vapor Pressure: Not relevant
Solubility: Soluble in water
Partition Coefficient: Not available
Auto-ignition Temperature: No data
Decomposition Temperature: Above 220°C
Viscosity: Not applicable

10. Stability and Reactivity

Stability: Stable under recommended storage conditions
Reactivity: Not reactive under normal use
Conditions to Avoid: Heat, moisture, strong oxidizers, and acids
Incompatible Materials: Oxidizing agents, acids, heavy metal salts
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, sodium oxides, and other toxic fumes on thermal decomposition
Polymerization: Will not occur under normal storage or use

11. Toxicological Information

Acute Toxicity: LD50 oral (rat): approximately 11900 mg/kg
Skin Corrosion/Irritation: May cause mild irritation on prolonged exposure
Eye Damage/Irritation: May cause minor, temporary irritation
Respiratory Sensitization: Inhalation of dust may irritate mucous membranes
Carcinogenicity: No components classified as carcinogens by IARC, NTP, or OSHA
Mutagenicity: Negative in Ames and other genotoxicity assays
Reproductive Toxicity: Not known to cause reproductive harm
Target Organs: None identified at occupational exposure levels

12. Ecological Information

Aquatic Toxicity: Not considered harmful at levels released; Vitamin C derivatives degrade readily in the environment
Persistence and Degradability: Readily biodegradable in soil and water
Bioaccumulative Potential: Not expected due to high solubility and rapid breakdown
Mobility in Soil: High, soluble in water
Other Adverse Effects: No evidence of significant ecotoxicity or harmful long-term effects in natural settings

13. Disposal Considerations

Product Disposal: Dispose in accordance with local, regional, and national regulations for non-hazardous materials; product can often go to landfill or be incinerated when permitted
Contaminated Packaging: Clean before reuse or dispose in accordance with official regulations
Recommendations: Do not discharge into environment or sewer systems; consult authorities if large quantities require disposal

14. Transport Information

UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as hazardous
Transport Hazard Class: Not subject to hazardous goods regulations for air, sea, or road
Packing Group: Not applicable
Environmental Hazards: Not a marine pollutant
Special Precautions: Protect from moisture and excessive heat during transport; transport in original or suitable container

15. Regulatory Information

US Regulations: Not listed on SARA Title III, CERCLA, or RCRA as a hazardous substance; not on California Proposition 65
International Inventories: Listed in US TSCA, EINECS/ELINCS (EU), DSL/NDSL (Canada), AICS (Australia), ENCS (Japan)
Labelling: Not required to carry hazard labels under GHS or OSHA
Other Requirements: Adhere to safe work and hygiene practices, and follow state and local regulations as applicable; food and pharmaceutical uses subject to additional oversight by health authorities and quality organizations