|OSMIUM TETROXIDE||ICSC: 0528 (September 1997)|
|Osmic acid anhydride
| CAS #: 20816-12-0
| UN #: 2471
|EC Number: 244-058-7
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Not combustible but enhances combustion of other substances. Risk of fire and explosion on contact with combustible substances.||NO contact with flammables.||In case of fire in the surroundings, use appropriate extinguishing media.|
|AVOID ALL CONTACT!|
|Inhalation||Burning sensation. Cough. Headache. Wheezing. Shortness of breath. Visual disturbances. Symptoms may be delayed. See Notes.||Use local exhaust or breathing protection.||Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.|
|Skin||Redness. Skin burns. Pain. Skin discoloration. Blisters.||Protective gloves. Protective clothing.||First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention .|
|Eyes||Redness. Pain. Blurred vision. Loss of vision. Severe deep burns.||Wear safety goggles or eye protection in combination with breathing protection if powder.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Abdominal cramps. Burning sensation. Shock or collapse. See Inhalation.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Give nothing to drink. Rest. Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.||
According to UN GHS Criteria
|Separated from combustible substances, reducing agents and food and feedstuffs. Ventilation along the floor.|
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Severe marine pollutant.
|OSMIUM TETROXIDE||ICSC: 0528|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
|TLV: (as Os): 0.0002 ppm as TWA; 0.0006 ppm as STEL|
|This substance may be hazardous to the environment. Special attention should be given to crustacea.|
|Begins to sublime and distil well below boiling point.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered.
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT take working clothes home.
Rinse contaminated clothing with plenty of water because of fire hazard.
Symbol: T+; R: 26/27/28-34; S: (1/2)-7/9-26-45
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