Contact Us
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
© 2025 Alchemist Worldwide Ltd, All Right Reserved
Product Name: L-Malic Acid
Synonyms: Hydroxybutanedioic acid, (S)-2-hydroxysuccinic acid
CAS Number: 97-67-6
Molecular Formula: C4H6O5
Molecular Weight: 134.09 g/mol
Manufacturer Information: Supply chain details and local distributor’s contact should be kept readily available for reference in an incident.
Recommended Use: Commonly added to foods, beverages, and pharmaceuticals as an acidulant, flavor enhancer, and chemical intermediate, often found in dietary supplements.
Hazard Classification: Not categorized as hazardous by the GHS for normal handling; possible irritant for eyes, respiratory tract, and skin with prolonged contact.
Pictogram: Exclamation mark for irritant warning.
Signal Word: Warning
Hazard Statements: May cause eye irritation and mild skin discomfort.
Precautionary Statements: Avoid unnecessary dust generation, use in well-ventilated spaces, wear protective equipment when handling in bulk, wash hands thoroughly after use, and prevent direct exposure to skin and eyes.
Chemical Component: L-Malic Acid
Content: Minimum 99% by weight
Impurities: Trace levels of water, related organic acids (such as fumaric acid), and inorganic salts, generally under 1%.
General Advice: Provide fresh air if discomfort follows inhalation, rinse with copious water following contact with eyes or skin, and provide water if ingested (unless symptoms persist).
Eye contact: Flush with water for at least 15 minutes, lifting eyelids as necessary, and seek medical help if any redness or irritation continues.
Skin contact: Remove contaminated clothing, wash affected area thoroughly with soap and water, seek attention for persistent symptoms.
Inhalation: Move to fresh air, monitor breathing, obtain medical assistance for severe symptoms.
Ingestion: Rinse mouth, drink moderate amount of water, do not induce vomiting, seek medical assistance for larger quantities or persisting effects.
Extinguishing Media: Use water spray, CO2, foam, or dry chemical for fire near stocks of malic acid; avoid direct stream that scatters powder.
Specific Fire Hazards: May generate carbon oxides if involved in fire, powder can form explosive dust-air mixtures at high concentrations.
Protective Equipment: Wear full protective clothing and approved self-contained breathing apparatus.
Special Procedures: Remove containers from fire area if safe to do so, control runoff to avoid contamination of water sources.
Personal Precautions: Avoid breathing dust, wear suitable protective clothing, goggles, gloves, and mask.
Environmental Precautions: Prevent product from entering drains or waterways.
Containment and Cleanup: Scoop up and collect in suitable containers for disposal or reuse, ventilate area well, ensure all residues are collected, minimize dust generation.
Handling: Keep containers tightly closed to prevent moisture absorption and contamination, avoid dust formation in storage and process areas, ground equipment to prevent static buildup, wash hands and exposed skin after handling.
Storage: Store in cool, dry, well-ventilated spaces out of direct sunlight and away from strong oxidizers; keep containers clearly labeled and tightly sealed.
Engineering Controls: Use process enclosures, local exhaust ventilation, and general exhaust to control airborne dust levels.
Personal Protective Equipment: Wear safety glasses or chemical goggles, chemical-resistant gloves, lab coat or apron, and mask or respirator if dust becomes an issue.
Hygiene Measures: Wash thoroughly after handling, remove contaminated clothing and wash before reuse, avoid eating or drinking in handling areas.
Appearance: White, crystalline powder
Odor: Odorless or very mild acidic scent
Boiling Point: Decomposes before boiling
Solubility: Freely soluble in water, slightly soluble in ethanol
Melting Point: 130°C (266°F)
pH (50 g/L Solution): 1.9 - 2.3
Partition Coefficient: -1.26 (log Po/w)
Vapor Pressure: Not volatile at room temperature
Density: Approx. 1.6 g/cm³
Flash Point: Not applicable
Decomposition Temperature: Around 140°C (284°F)
Chemical Stability: Stable under normal conditions, reacts with strong bases and oxidizers.
Incompatible Materials: Strong bases, oxidizing agents, and some metals.
Hazardous Decomposition Products: Releases CO and CO2 at elevated temperatures.
Polymerization: Not known to polymerize.
Conditions to Avoid: Excessive heat, strong sunlight, moisture ingress, and direct contact with reactive chemicals.
Acute Toxicity: Low toxicity by oral and dermal routes in animal models (oral LD50 rat >3200 mg/kg).
Irritation: Mild irritant to eyes and skin at high concentrations.
Chronic Effects: No long-term adverse effects reported at ordinary exposure levels; no evidence of carcinogenicity.
Routes of Exposure: Inhalation of dust, skin or eye contact, ingestion.
Symptoms: Redness, dryness, or mild discomfort at high exposures; high ingestion may lead to gastrointestinal upset.
Ecotoxicity: Low toxicity to aquatic and terrestrial life, rapidly biodegradable, does not persist in the environment.
Mobility: High solubility in water, likely to leach to groundwater if spilled.
Bioaccumulation: Not expected to bioaccumulate.
Degradability: Readily broken down by microorganisms, minimal ecological impact under typical environmental concentrations.
Waste Disposal: Place in a suitable, labeled, closed container for recycling or approved landfill, comply with local environmental regulations.
Contaminated Packaging: Wash thoroughly before disposal or recycling, avoid release to surface water or sewers.
UN Number: Not regulated for transport
Proper Shipping Name: L-Malic Acid
Hazard Class: Not designated as hazardous by transport regulations
Packing Group: Not assigned
Transport Precautions: Keep container sealed, avoid moisture ingress, prevent damage to packaging.
International Inventories: Listed on major chemical inventories including EINECS, TSCA, DSL, and AICS.
Labeling Requirements: Product label should include chemical name, hazard warning, precautionary statements, and supplier contact.
OSHA Status: Not classified as hazardous under OSHA Hazard Communication Standard.
SARA/Title III: Not designated a reportable chemical under SARA Title III Sections 302, 304, or 313.
REACH Status: Registered under REACH in the European Union, subject to volume and use conditions.
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
