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Merck
CN

255459

Arsenic(V) oxide hydrate

97%

Synonym(s):

Arsenic pentoxide hydrate

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About This Item

Linear Formula:
As2O5 · xH2O
CAS Number:
Molecular Weight:
229.84 (anhydrous basis)
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-116-9
MDL number:
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Quality Segment

assay

97%

form

powder

composition

Degree of hydration, ~3 , (As2O5· xH2O; x≈3)

reaction suitability

core: arsenic

density

4.32 g/mL at 25 °C (lit.)

SMILES string

O.O=[As](=O)O[As](=O)=O

InChI

1S/As2O5.H2O/c3-1(4)7-2(5)6;/h;1H2

InChI key

XSIWZGKXZLITBO-UHFFFAOYSA-N



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signalword

Danger

Hazard Classifications

Acute Tox. 2 Oral - Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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