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Product Name: DL-Ascorbic Acid
Chemical Name: DL-ascorbic acid
Synonyms: Racemic ascorbic acid
CAS Number: 50-81-7
Molecular Formula: C6H8O6
Recommended Use: Antioxidant, food additive, chemical intermediate
Supplier Details: Supplier’s contact information, including emergency phone number
EMERGENCY PHONE: Local poison control center or supplier’s 24-hour number
Classification: Not classified as hazardous according to Global Harmonized System (GHS)
Label Elements: Not required
Hazard Statements: May cause minor irritation to eyes or skin upon contact, but no serious acute health effects observed in normal laboratory or industrial settings
Precautionary Statements: Avoid inhaling fine dust; wash hands thoroughly after handling; use personal protection as described below
Other Hazards: Fine powder can present dust explosion risk under certain conditions; always use suitable ventilation and dust control measures
Chemical Identity: DL-Ascorbic Acid
Concentration: Typically >99%
Impurities: May include trace levels of moisture and proprietary stabilizers (if applicable, check product certificate of analysis)
Hazardous Components: No components classified as hazardous under GHS criteria
Inhalation: Move to fresh air and keep at rest. Get medical attention if symptoms like coughing or sneezing persist.
Skin Contact: Remove contaminated clothing. Wash skin thoroughly with soap and water.
Eye Contact: Rinse immediately with plenty of water, lifting eyelids occasionally. Remove contact lenses if worn and easy to do. Seek attention for persistent irritation.
Ingestion: Rinse mouth. Drink water for dilution. Medical attention for discomfort or large quantities, but significant harm unlikely from small accidental ingestion.
Most Important Symptoms/Effects: May cause mild eye or skin irritation.
Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide.
Unsuitable Extinguishing Media: High-pressure water streams may spread dust.
Specific Hazards: Dust can generate a risk of dust explosion in enclosed areas. During combustion, possible formation of carbon oxides (CO, CO2).
Protective Equipment and Precautions: Firefighters wear self-contained breathing apparatus (SCBA) and protective clothing.
Personal Precautions: Evacuate area of unnecessary personnel. Avoid contact with skin, eyes, and clothing. Use suitable personal protective equipment described in Exposure Controls section to minimize exposure.
Spill Cleanup: Collect powder by mechanical means such as vacuuming or sweeping (with dust suppression if necessary). Do not create dust cloud. Place in a suitable container for disposal.
Environmental Precautions: Prevent large quantities from entering watercourses or drains. Sweep up smaller spills immediately to reduce slipping hazard.
Handling: Minimize dust generation. Use local exhaust or general ventilation. Avoid inhalation or contact with skin and eyes. Wash hands after handling. No smoking or eating around open product.
Storage: Store in tightly sealed original container, in a cool, dry, well-ventilated place away from heat, moisture, and incompatible materials like oxidizers, alkalis, or iron salts. Protect from light to prevent degradation; keep away from sources of ignition.
Occupational Exposure Limits: No exposure limits set by OSHA, NIOSH, or ACGIH. Use industrial hygiene controls for nuisance dust (total dust: 10 mg/m3 TWA OSHA).
Engineering Controls: Use good ventilation, especially for powder handling. Use dust-collection systems if needed.
Personal Protection: Eye/face protection: Safety glasses with side shields. Skin protection: Wear gloves resistant to mild chemicals. Respiratory protection: Use N95 dust mask if airborne concentrations become significant. Clothing: Laboratory coat or other protective garment.
Appearance: White to slightly yellowish crystalline powder
Odor: Odorless or faint characteristic smell
Odor Threshold: No information available
pH: Approximately 2.2 (5% solution in water)
Melting Point: 192–193°C (decomposes)
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: Not flammable
Flammability: Not classified as flammable but poses dust explosion risk
Vapor Pressure: Negligible at ambient temperature
Vapor Density: Not applicable
Relative Density: Around 1.65 g/cm3
Solubility: Soluble in water: 33 g/100 ml (20°C); sparingly soluble in ethanol
Partition Coefficient (log Pow): -2.15
Auto-ignition Temperature: Not available
Decomposition Temperature: Approx. 192°C
Viscosity: Not applicable
Chemical Stability: Stable under normal handling and storage conditions, especially when protected from air, light, and moisture
Reactivity: No dangerous reactions expected under normal use. Sensitive to oxidation.
Conditions to Avoid: Exposure to air, heat, humidity, light, and incompatible chemicals may degrade product
Incompatible Materials: Strong oxidizing agents, strong acids or bases, iron or copper salts
Hazardous Decomposition Products: If heated to decomposition, may emit CO, CO2, and irritating fumes
Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: LD50 (oral, rat): > 11900 mg/kg (very low toxicity)
Skin Corrosion/Irritation: Mild irritation possible with prolonged or repeated contact
Serious Eye Damage/Irritation: Can cause minor, reversible irritation
Respiratory Sensitization: Not known to cause respiratory sensitization
Skin Sensitization: Not a known sensitizer
Chronic Effects: No known long-term risks under typical exposures
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, OSHA
Reproductive Toxicity: No evidence from animal studies at non-extreme doses
Other Data: Vitamin C is a common dietary supplement; industrial usage in large quantities should always observe workplace hygiene practices
Ecotoxicity: Product not expected to present significant environmental hazards. Slightly acidic; large spills may temporarily lower local pH in aquatic environments.
Aquatic Toxicity: Fish (LC50): Not acutely toxic. Daphnia (EC50): Data not indicating major concern.
Persistence and Degradability: Readily biodegradable in water and soil.
Bioaccumulative Potential: Not bioaccumulative, log Kow below zero.
Mobility in Soil: Mobile due to water solubility.
Other Adverse Effects: No long-term adverse effects anticipated under prescribed uses.
Waste Disposal: Dispose in accordance with local, regional, and national regulations. Small quantities can go to normal landfill. Large bulk should be sent to approved waste disposal facility. Never discharge concentrated waste into waterways or sewers.
Container Disposal: Empty packaging completely before discarding, rinse with water if necessary, then recycle or dispose as municipal waste according to local rules.
UN Number: Not regulated
Proper Shipping Name: DL-Ascorbic Acid
Transport Hazard Class: Not regulated, non-hazardous for air, sea, or road transport
Packing Group: Not required
Environmental Hazards: Not classified as marine pollutant
Special Precautions: Transport in sealed container, avoid moisture and direct sunlight.
OSHA Status: Not hazardous under definition in 29 CFR 1910 (OSHA Hazard Communication Standard)
SARA Title III/CERCLA: Not subject to reporting
TSCA Status: Listed on the US TSCA Inventory
EU Regulation: Registered under REACH; not considered hazardous under Regulation (EC) No. 1272/2008 (CLP)
California Prop 65: Not listed
Other National/International Regulations: Product permitted as food additive (subject to food grade certification). Always verify specific country, regional, or local rules affecting use or labeling of the product.
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
