|SELENIUM TRIOXIDE||ICSC: 0949 (March 2000)|
| CAS #: 13768-86-0
| UN #: 3283
|EC Number: 237-385-1
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.||NO contact with combustible substances.||In case of fire in the surroundings, use appropriate extinguishing media.|
|PREVENT DISPERSION OF DUST! STRICT HYGIENE!|
|Inhalation||Burning sensation. Cough. Laboured breathing. Sore throat. Shortness of breath. Symptoms may be delayed. See Notes.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.|
|Skin||Redness. Pain. Blisters. Skin burns.||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. Severe deep burns.||Wear face shield or eye protection in combination with breathing protection.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Sore throat. Nausea. Abdominal pain. Burning sensation. Diarrhoea. Vomiting. Shock or collapse.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Do NOT induce vomiting. Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. 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 and food and feedstuffs. Dry. Keep in a well-ventilated room.|
|Do not transport with food and feedstuffs.|
|SELENIUM TRIOXIDE||ICSC: 0949|
|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 Se): 0.2 mg/m3, as TWA.
MAK: (as Se, inhalable fraction): 0.02 mg/m3; peak limitation category: II(8); skin absorption (H); carcinogen category: 3; pregnancy risk group: C
|The substance is harmful to aquatic organisms.|
|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 inhalation therapy by a doctor, or by an authorized person, should be considered.
Symbol: T, N; R: 23/25-33-50/53; S: (1/2)-20/21-28-45-60-61; Note: A
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