Arsenic pentoxide, 98%

Name: Arsenic pentoxide, 98%
Brand: Vaqora Chemicals
SKU: VQ-015157

About Arsenic pentoxide, 98%

Vaqora Chemicals supplies Arsenic pentoxide (Synthesis grade), a main-group metal compound registered under CAS number 1303-28-2, specified at 98% purity. Its molecular formula is As2O5 and its molecular weight is 229.84 g/mol. Common synonyms include Arsenic(V) oxide and Arsenic oxide.

The material typically appears as a white powder. Literature values give a melting point of above 300 °C. Its solubility is described as soluble in alcohol. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span materials research and chemical synthesis. Typical end-use sectors are academic and industrial research.

Available in 25 g, 100 g and 1 kg packs, Arsenic pentoxide is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Arsenic pentoxide, 98%
Catalogue No.	VQ-015157
CAS Number	1303-28-2
Molecular formula	As₂O₅
Molecular weight	229.84 g/mol
Exact mass	229.8178
Grade	Synthesis
Purity / assay	98%
HSN code	28259090
InChIKey	COHDHYZHOPQOFD-UHFFFAOYSA-N
SMILES	O=[As](=O)O[As](=O)=O
PubChem CID	14771

Physical properties
Physical form	Powder
Appearance	White powder
Melting point	>300 °C
Solubility	Soluble in alcohol
H-bond donors / acceptors	0 / 5
TPSA	77.5 Å²
UN number	UN 1561
Synonyms	Arsenic(V) oxide, Arsenic oxide, Arsenic anhydride, Arsenic pentaoxide, Arsenic acid anhydride, Diarsenic pentoxide, Arsenic(5+) oxide, Anhydride arsenique, arsenic (V) oxide, diarsooxidane, Arsenic oxide (As2O5), Arsenic(V) pentoxide

Safety & hazard information (GHS)

Toxic

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H331Toxic if inhaled
H350May cause cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P261, P264, P270, P271, P273, P280, P301 + P316, P304 + P340, P316, P318, P321, P330, P391, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1303-28-2

Practical

Arsenic pentoxide, pract

CAS: 1303-28-2
Formula: As₂O₅
MW: 229.84 g/mol

VQ-015158

Frequently asked questions

What is the CAS number of Arsenic pentoxide, 98%?

The CAS Registry Number of Arsenic pentoxide, 98% is 1303-28-2. It is also known as Arsenic(V) oxide, Arsenic oxide, Arsenic anhydride.

What is the molecular formula and molecular weight of Arsenic pentoxide, 98%?

Arsenic pentoxide, 98% has the molecular formula As2O5 and a molecular weight of 229.84 g/mol.

Which grade and pack sizes of Arsenic pentoxide, 98% can I order?

We supply Arsenic pentoxide, 98% in Synthesis (98%) grade, in 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Arsenic pentoxide, 98%?

Yes. Every lot of Arsenic pentoxide, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Arsenic pentoxide, 98% be shipped internationally?

Yes. Arsenic pentoxide, 98% is classified as hazardous (UN 1561), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.