|
|
Date of Issue : Jan 2000 1. IDENTIFICATION
General Product Name : MALEIC ANHYDRIDE Other Names : cis-BUTENEDIOIC ANHYDRIDE 2,5-FURANDIONE UN No. : 2215 Dangerous Goods Class : 8 Subsidiary Risk : None Allocated Hazchem Code : 2X Pack Group : III EPG : 39 Poisons Schedule : N/A Uses : Polyester resins, alkyd coating resins, fumaric and tartaric acid manufacture, pesticides, preservative for oils and fats, permanent-press resins (textiles), Diels-Alder reactions.
1.1 Physical Description / Properties
Appearance : White solid with pungent odour. Formula : C4H2O3 Boiling Point : 202 deg C Melting Point : 53 deg C Vapour Pressure : 1.0 mm Hg (1 atmosphere) Specific Gravity : 1.48 (water = 1) Flash Point : Open Cup 110 pH : N/A () Solubility in water : 572 g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : 1.4 Upper Explosion Limit : 7.1 1.2 Other Properties
Density: 1.480 g/cm3 @ 20 deg C, 1.310 g/cm3 @ 60 deg C. Bulk density: 750.0 - 850.0 kg/m3. Relative vapour density (air): 3.380. Vapour pressure: 1.0 mm Hg @ 44.0 deg C, 6.2 mm Hg @ 70.0 deg C. Viscosity: 0.131 mPa.s @ 80.0 deg C. Other solubility: Benzene - approx 439.0 g/l @ 25.0 deg C. Odour threshold: 1.30 - 2.0 ppb. Flash point: approx 102 deg C closed cup. Ignition temperature: 475.0 deg C. 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Can cause serious irritation and gastro-intestinal disturbance. Eye
Dust and vapour can cause severe irritation. Contact with molten product can cause burns. Skin
Can cause irritation and allergic reaction. Contact with molten product will cause burns. Inhaled
Vapour and dust can cause irritation to the lungs and respiratory tract, coughing and pulmonary oedema. Can cause allergic respiratory reaction. Prolonged exposure can cause chronic bronchitis. 2.2 Health Effects - Chronic
May cause sensitization by inhalation and skin contact. Causes burns.
2.3 First Aid
Swallowed
If vomiting occurs naturally, have victim lean formward to reduce risk of aspiration. Call a physician.
Eye
Immediately flish eyes with running water for at least 15 minutes. Hold eyelids apart to ensure rinsing of the entire surface of the eyes and the lids with water. Get immediate medical attention.
Skin
Wash affected areas with plenty of water and soap if available, for several minutes. Remove and clean contaminated clothing and shoes. Seek medical attention if irritation develops or persists.
Inhaled
Remove from area to fresh air. Irf not breathing, clear airway and start artificial respiration (mouth-to-mouth, bag-mask respirator). If having trouble breathing, give supplemental oxygen. Get immediate medical attention.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
Treat symptomatically based on individual reactions of patient and judgement of doctor.
2.6 Toxicity Data
Oral (rat) LD50: 400 mg/kg. Dermal (rabbit) LD50: 398 - 631 mg/kg. Eye irritation (rabbit) - 24 hrs - corrosive. Skin irritation (rabbit) - 24 hrs - corrosive. DOT skin corrosion (rabbit) 24 hrs - not corrosive. No reported evidence of carcinogenesis, mutagenesis, teratogenesis effects.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
TWA : 0.25 ppm, 1 mg/m3.
3.2 Engineering Controls
Ensure adequate ventilation to keep airbourne concentrations below exposure standard.
3.3 Personal Protection
Wear dust filter mask when handling. On exposure to the molten product, a full faced industrial gas mask with canister of type A (brown) should be provided. Use PVC or plastic gloves. Safety goggles or face shield. Avoid contact with skin, eyes and clothing. Wash oneself immediately and take off contaminated clothing. Keep away from foodstuffs. Wash hands at every break of work.
3.4 Flammability
Moderate risk of fire when exposed to heat or flame. Dust can form explosive mixture with air. Explosion possible if molten product is placed in equipment washed with sodium or potassium carbonate or hydroxide or aqueous ammonia. If this washing method is used, it is imperative that any residual ammonium, potassium, or sodium ions be completely washed from the equipment. Flash point: 103 deg C. Autoigntion temperature: 477 deg C. Explosive limits (% volume in air) LEL: 1.4, UEL 7.1. Hazardous decomposition products include carbon monoxide and hydrocarbon residues. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Use only in well ventilated areas. Temperatures should not exceed 100 deg C. Do not use air for pneumatic handling of solid equipment. Dust can generate an electrostatic charge. Equipment must be earthed. Spark resistant tools should be used and smoking should be strictly forbidden. If leaks or spills occur, only properly protected personnel should remain in the area. Leakage in storage and handling equipment should be repaired as soon as possible. Avoid the product from naked lights, sparks. Keep away from moisture - will slowly hydrolyze to maleic acid. Keep away from alkaline metals and amines - polymerisation with alkalis and alkaline metals, amines or strong oxidizers can occur.
4.2 Packaging / Labelling UN No. 2215 Class 8 Sub Risk None Allocated Hazchem Code 2X Pack Group III EPG No. 39 Shipping Name MALEIC ANHYDRIDE Hazard HARMFUL
Risk Phrases R22 Harmful if swallowed. R36/37/38 Irritating to eyes, respiratory system and skin. R42 May cause sensitisation by inhalation.
Safety Phrases S22 Do not breathe dust. S28:MAANHY After contact with skin, wash immediately with plenty of water and soap. S39 Wear eye/face protection. S2 Keep out of the reach of children.
4.3 Spills and Disposal
Spills
Clean-up personnel should wear full protective clothing including breathing protection in confined or dusty areas. Avoid raising dust. Prevent spilled material from entering waterways.
In case of leakage or spillage, leave molten product to solidify. Using personnel protection equipment, pick up solid material for reusing or disposal. Wash area with water and neutralize washing. If it is not practical, dissolve in a flammable solvent (such as alcohol) and atomize in a suitable combustion chamber.
Disposal
Maleic anhydride may be disposed of: (1) by making packages of maleic anhydride in paper or other flammable material, burning in combustion chamber, (2) by dissolving maleic anhydride in a flammable solvent and atomizing in a suitable combustion chamber, (3) by placing maleic anhydride in closed containers and dispositing in a secured sanitary landfill.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Moderate risk of fire when exposed to heat or flame. Dust can form explosive mixture with air. Avoid the use of chemical powder, as those containing bases can react violently with maleic anhydride.
Extinguishing Media
Fire-fighters should wear full protective clothing including self-contained breathing apparatus. Use foam, carbon dioxide, or water spray as extinguishing media. 5 OTHER INFORMATION
Other Information
BSB/BOD5: approx 50.0%. Water danger/protection: WGK1 - slightly dangerous to water.
5.1 Contact Points
|
||||||||||||||||||||
|
|
||||||||||||||||||||
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
|
||||||||||||||||||||
|
|
 |