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HomeProduct name listARSENIC(V) OXIDE HYDRATE

ARSENIC(V) OXIDE HYDRATE

Synonym(s):Arsenic pentoxide hydrate

  • CAS NO.:12044-50-7
  • Empirical Formula: As2H2O6
  • Molecular Weight: 247.86
  • MDL number: MFCD00149146
  • EINECS: 629-626-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-04-23 13:52:06
ARSENIC(V) OXIDE HYDRATE Structural

What is ARSENIC(V) OXIDE HYDRATE?

Chemical properties

white powder

Chemical properties

Arsenic pentoxide is an odorless white lumpy solid or powder and nonflammable. It may be shipped as a concentrated water solution.

Potential Exposure

Arsenic pentoxide is used in production of metal arsenates; as an herbicide, defoliant on cotton; as a chemical intermediate; as an ingredient in wood preservatives; and in glass. Other possible uses are as an insecticide and soil sterilant.

Shipping

UN1559 Arsenic pentoxide, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Decomposes above 315 C, forming oxygen and arsenic trioxide fumes. Arsenic pentoxide is an oxidizer; reacts violently with bromine pentafluoride and reducing agents. The solution in water is a weak acid. Incompatible with acids, strong alkalis; halogens, rubidium carbide, zinc. Corrosive to metals in the presence of moisture. Contact with acids or acid mists releases deadly arsine gas.

Waste Disposal

Dissolve in a minimum of concentrated hydrochloric acid. Dilute with water until white precipitate forms. Add HCl to dissolve. Saturate with H2S; filter and wash precipitate and return to supplier. Alternatively, precipitate with heavy metals, such as lime or ferric hydroxide in lieu of H2S. If needed, seek professional environmental engineering assistance from the United States Environmental Protection Agency Environmental Response Team at (908) 548-8730 (24-hour response line). Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/ mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

Properties of ARSENIC(V) OXIDE HYDRATE

Density  4.32 g/mL at 25 °C(lit.)
form  powder
Stability: Stable. Avoid contact with strong acids, strong oxidizing agents. Protect from moisture.
CAS DataBase Reference 12044-50-7

Safety information for ARSENIC(V) OXIDE HYDRATE

Signal word Danger
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H300:Acute toxicity,oral
H331:Acute toxicity,inhalation
H350:Carcinogenicity
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P202:Do not handle until all safety precautions have been read and understood.
P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P273:Avoid release to the environment.
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

Computed Descriptors for ARSENIC(V) OXIDE HYDRATE

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