Sodium selenite,anhydrous, sodium hydrogen selenite, Monohydrated selenium dioxide, selenious acid, monosodium salt,  10102-18-8, 

Sodium selenite,anhydrous, sodium hydrogen selenite, Monohydrated selenium dioxide, selenious acid, monosodium salt,  10102-18-8

Sodium selenite,anhydrous

CAS: 10102-18-8

Molecular Formula: H2NaOSe

Names and Identifiers

Physico-chemical Properties

Risk and Safety

Hazard Symbols	T+ - Very toxic N - Dangerous for the environment
Risk Codes	R23 - Toxic by inhalation R28 - Very Toxic if swallowed R31 - Contact with acids liberates toxic gas R43 - May cause sensitization by skin contact R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description	S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets.
UN IDs	UN 2630

Nature

white square prism crystal or crystalline powder. Stable in air. Soluble in water, insoluble in ethanol. Non-combustible. By high heat decomposition of toxic gases.

Preparation Method

prepared by the action of selenous acid and sodium carbonate.

Use

used as an inspection and bacteriological reagent for alkaloids. It can also be used for red glass, seed inspection, glaze color preparation and feed additives.

Safety

rat via LDso;7 mg/kg. Human oral intake of 19, can cause poisoning death. Store in a cool, ventilated warehouse. Keep away from fire and heat source. It should be stored separately from oxidant, acids and edible chemical raw materials. It cannot be mixed with food, food, seeds, feed and various daily necessities.