Synonym(s): Selenious acid
Formula: H2SeO3
Formula weight: 128.97
Purity: 97%
CAS Number: 7783-00-8
UN Number: UN3290
Hazard Class: 6.1
Packing Group: II
Harmonized Tariff Code: 2811.19
Hazard Statements: H301-H331-H373
Toxic if swallowed. Toxic if inhaled. May cause damage to organs through prolonged or repeated exposure.
Precautionary Statements: P260-P261-P301+P310-P304+P340-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk Phrases: 23/25-33-34-50/53
Toxic by inhalation and if swallowed. Danger of cumulative effects. Causes burns. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Phrases: 20/21-28-45-60-61
When using do not eat, drink or smoke. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). This material and/or its container must be disposed of as hazardous waste. Avoid release to the environment. Refer to special instructions/Safety data sheets