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Date of Issue : Feb 2000 1. IDENTIFICATION
General Product Name : CHROME OXIDE GREEN Other Names : CHROMIUM (III) OXIDE ; CHROMIC OXIDE ; CHROMIA CHROME OXIDE ; DICHROMIUM TRIOXIDE ; GREEN CINNABAR UN No. : N/A Dangerous Goods Class : None Allocated Subsidiary Risk : None Allocated Hazchem Code : N/A Pack Group : 0 EPG : N/A Poisons Schedule : N/A Uses : Metallurgy, green paint pigment, ceramics, catalyst in organic synthesis, green granules in asphalt roofing, component of refractory brick, abrasive.
1.1 Physical Description / Properties
Appearance : Light to dark green hexagonal crystals, no distinct odour. Formula : Cr2O3 Boiling Point : N/A deg C Melting Point : 2435 deg C Vapour Pressure : N/A Specific Gravity : 5.4 (water = 1) Flash Point : N/A pH : 7.5 ( @ 0.5% soln) Solubility in water : Insol g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Bulk density (loose) = 0.8 pH value 5g/100mls aqueous solution = 3.5 - 6.5 Molecular weight : 151.9902 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Injestion of large amounts may cause gastrointestinal irritation. Eye
Exposure will cause moderate irritation due to mechanical action and might cause conjunctivitis. Skin
May cause mild irritation. Inhaled
May adversely affect the respiratory system. Inhalation LC50 = Not available 2.2 Health Effects - Chronic
Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. Repeated inhalation may cause chronic bronchitis. May cause cancer according to animal studies.
2.3 First Aid
Swallowed
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
Eye
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. If irritation develops, get medical aid.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Inhaled
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
First Aid Facilities
Ensure eye bath & safety shower are available and ready for use.
2.5 Advice to Doctor
Treat symptomatically and supportively. Treat weeping dermatitis with 1% aluminum acetate wet dressings.
2.6 Toxicity Data
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
Chromium III compounds, as Cr : TWA = 0.5 mg/m3 This product may be oxidised even a small amount to hexavalent chromium when it is exposed to elevated temperatures under oxygen-containing gas atmospheres. Hexavalent chromium is identified as an established human carcinogen. Chromium VI compounds, as Cr : TWA = 0.05 mg/m3
3.2 Engineering Controls
Ensure workplace is well ventilated to maintain air concentrations below exposure standard.
3.3 Personal Protection
Eyes - Wear appropriate protective eyeglass or chemical safety goggles. Skin - Wear appropriate gloves to prevent skin exposure. Clothing - Wear appropriate protective clothing to prevent skin exposure. Respiratory - Always use a NIOSH-approved respirator when necessary. DO NOT eat, drink or smoke when handling this product.
3.4 Flammability
Not flammable under conditions for use. Keep away from sources of ignition. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation. DO NOT store near combustible materials. Store in tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
4.2 Packaging / Labelling UN No. N/A Class None Allocated Sub Risk None Allocated Hazchem Code N/A Pack Group 0 EPG No. N/A Shipping Name CHROME OXIDE GREEN Hazard
Risk Phrases
Safety Phrases
4.3 Spills and Disposal
Spills
Clean-up personnel should wear full protective clothing including breathing apparatus.
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.
Disposal
Dispose of in accordance with all Local, State and Federal regulations at an approved waste disposal site. It is required that when even a trace of this product has been oxidised to the hexavalent state, the waste should be reduced and neutralised to hydroxychromium oxide, and dumped in an approved waste disposal area.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Chemical Stability : - Stable under normal temperatures and pressures. Conditions to Avoid : - Incompatible materials, combustible materials. Incompatibilities with Other Materials : - Chlorine trifluoride, glycerol, lithium, rubidium acetylide, and oxygen Difluoride. Hazardous Decomposition Products : - None Hazardous Polymerization - Has not been reported. Autoignition Temperature - Noncombustible
Extinguishing Media
Fire-fighters should wear full protective clothing including Self-contained breathing apparatus. In case of fire use, water, dry chemical, chemical foam, or alcohol-resistant foam. 5 OTHER INFORMATION
Other Information
Fish and bacterial toxicity : no harmful effect. As the product is insoluble in water, it is separated in the water in the sedimentation process.
5.1 Contact Points
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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.
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