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Material Safety Data Sheet: Malonic Acid Dihydrazide

Identification

Product Name: Malonic Acid Dihydrazide
Chemical Formula: C3H8N4O2
CAS Number: 614-85-7
Synonyms: Dihydrazide of malonic acid, malonohydrazide
Recommended Use: Laboratory and industrial chemical synthesis, research applications
Supplier Information: Relevant chemical supplier’s address and emergency contact number
Emergency Telephone: Local/national poison center, medical, and fire services

Hazard Identification

Classification: Acute toxicity (oral, dermal), skin and eye irritation
Pictogram: Exclamation mark
Signal Word: Warning
Hazard Statements: Harmful if swallowed or inhaled, causes mild skin irritation, may cause eye irritation, can be harmful to aquatic life
Precautionary Statements: Avoid contact with eyes, skin, or clothing, do not breathe dust, wash hands thoroughly after handling, avoid release into the environment
Other Hazards: No reliable chronic toxicity data, avoid exposure beyond occupational limits

Composition / Information on Ingredients

Component: Malonic Acid Dihydrazide
Chemical Formula: C3H8N4O2
Concentration: 98% or greater
Impurities: <1% water, trace processing residuals
CAS Number: 614-85-7
Molecular Weight: 132.13 g/mol

First Aid Measures

Inhalation: Immediately move to fresh air, keep at rest, monitor breathing, seek medical attention if coughing or respiratory distress persists
Skin Contact: Gently wash area with soap and water for at least 15 minutes, remove contaminated clothing, seek medical aid for redness, rash, or discomfort
Eye Contact: Rinse cautiously with water for at least 15 minutes, hold eyelids apart, remove contact lenses, call a physician if irritation or blurred vision occurs
Ingestion: Rinse mouth thoroughly, do not induce vomiting, contact poison control or a physician promptly, monitor for signs of nausea, cramps, or dizziness
Acute Symptoms: Labored breathing, coughing, skin/eye redness or swelling, gastrointestinal discomfort, seek immediate evaluation for severe symptoms

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, CO2, water spray, alcohol-resistant foam
Unsuitable Media: Direct water stream
Specific Hazards Arising from Chemical: Emits toxic fumes of nitrogen oxides and carbon oxides under fire conditions, possible dust explosion risk if powdered
Protective Equipment: Wear self-contained breathing apparatus and chemical-resistant clothing
Special Precautions: Evacuate area if large fire occurs, use firefighting measures that minimize smoke inhalation risks, contain contaminated runoff to prevent environmental spread

Accidental Release Measures

Personal Precautions: Use personal protective equipment listed under exposure controls, prevent dust formation, avoid breathing powder or vapors
Environmental Precautions: Prevent chemical from entering drains, surface water, or soil
Methods for Containment and Cleanup: Sweep up and place in suitable labeled container, ventilate spill area, clean residue with damp cloth, dispose of cleanup waste as hazardous chemical per local regulations
Notification Procedures: Notify local safety and environmental authorities if release exceeds reportable quantities or environmental impact occurs

Handling and Storage

Safe Handling: Wear nitrile gloves, safety goggles, lab coat, and dust mask during handling, work in well-ventilated area or chemical fume hood, avoid contact with incompatible substances
Storage Conditions: Store tightly closed in cool, dry, and well-ventilated area, segregate from oxidizing agents, acids and bases, store at room temperature away from direct sunlight and moisture
Other Precautions: Keep container labeled, restrict access to trained personnel, avoid storage near food or animal feed, inspect regularly for damage or leaks

Exposure Controls and Personal Protection

Engineering Controls: Use chemical fume hood or effective general ventilation, install eyewash station and safety shower in work area
Respiratory Protection: Approved particulate respirator for potential dust exposure
Skin Protection: Chemical-resistant gloves, long sleeves, protective apron
Eye Protection: Tight-fitting safety goggles or face shield
Hygiene Measures: Wash hands before eating, smoking, or leaving laboratory, do not reuse contaminated clothing, change gloves regularly and after spills
Occupational Exposure Limits: No established values for malonic acid dihydrazide, follow general control guidance for fine organic powders

Physical and Chemical Properties

Appearance: White crystalline powder
Odor: Nearly odorless
pH (1% solution): Slightly acidic, pH 3-5
Melting Point: 178-182°C (decomposes)
Boiling Point: Not applicable (decomposes on heating)
Solubility: Soluble in water, very slightly soluble in common organic solvents
Density: 1.7 g/cm³ (approx.)
Vapor Pressure: Not significant at 20°C
Flash Point: No data available
Auto-ignition Temperature: No data available
Explosive Limits: Not established
Partition Coefficient (log Kow): Not determined
Evaporation Rate: Not volatile under standard conditions

Stability and Reactivity

Chemical Stability: Stable under standard room temperature and dry conditions
Reactivity: May react with strong oxidizers, acids, and bases
Conditions to Avoid: Exposure to high heat, open flame, sources of ignition, moisture
Incompatible Materials: Oxidizing agents, acid chlorides, alkali metals, strong acids
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide, hydrazine derivatives under fire or thermal stress

Toxicological Information

Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat): 200-2000 mg/kg (estimated, low to moderate toxicity)
Skin Corrosion/Irritation: May cause local redness or irritation on prolonged exposure
Eye Damage/Irritation: Can provoke irritation, watering, stinging
Respiratory Sensitization: Potential for coughing, sore throat, managed by adequate ventilation
Chronic Toxicity: No reliable animal data for carcinogenicity or reproductive risks
Symptoms: Nausea, headache, erythema, mild respiratory or gastrointestinal symptoms, allergic skin reaction rare
Carcinogenic Status: Not classified as carcinogenic by NTP, IARC, or OSHA based on current data

Ecological Information

Ecotoxicity: Harmful to aquatic organisms, low potential for bioaccumulation
Aquatic Toxicity: LC50 (fish, 96 h): Data not well established, estimated to be between 10-100 mg/L
Persistence and Degradability: Moderately biodegradable, persistence in soil or water expected to be low
Bioaccumulation Potential: Not likely to bioaccumulate based on molecular structure and solubility
Mobility in Soil: Mobile in water, can leach if released in large amounts
Other Adverse Effects: Rapid dilution in water reduces risk, avoid deliberate release to environment

Disposal Considerations

Disposal Methods: Collect and dispose of as hazardous solid waste via licensed chemical disposal contractor, do not release to sewer or natural water systems
Container Handling: Triple-rinse empty containers, deface labels, dispose in hazardous waste stream
Legal Compliance: Observe local, regional, and national regulations for chemical disposal, supply disposal documentation on request for audit purposes

Transport Information

UN Number: Not assigned
UN Proper Shipping Name: Not regulated
Transport Hazard Class: Not classified as hazardous for transport under ADR, IMDG, IATA
Packing Group: Not regulated
Environmental Hazards: Not a marine pollutant
Transport Precautions: Prevent container damage, avoid wet conditions during loading, provide safety data on request

Regulatory Information

US OSHA: Not specifically listed, general safe handling guidelines apply
TSCA Status: Listed
EU REACH: Not registered in high volumes, apply precautionary labeling
Hazard Symbol: GHS07 (Exclamation Mark)
SARA Title III Section 313: Not subject to reporting
California Proposition 65: Not listed
Canadian WHMIS: Classification D2B - Toxic Material Causing Other Toxic Effects
Other National Regulations: Assess for application in research and industry, maintain compliance with all applicable safety codes and chemical protection laws