Arsenic(III) oxide, 99%

Name: Arsenic(III) oxide, 99%
Brand: Vaqora Chemicals
SKU: VQ-015162

About Arsenic(III) oxide, 99%

Arsenic(III) oxide is a main-group metal compound (Synthesis grade) carrying the CAS registry number 1327-53-3 with a typical assay of 99%. The compound has the formula As2O3, corresponding to a molecular weight of 197.84 g/mol. Systematically, it is named bis(arsenic(3+)). Tris(oxygen(2-)). It is also known as Arsenic Trioxide or Arsenous Oxide.

In its supplied form it is a white powder. Key physical data: a melting point of 312.2 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Typical applications include materials research and chemical synthesis. Buyers come mainly from academic and industrial research.

Vaqora Chemicals supplies Arsenic(III) oxide in 500 g, 5 kg, 25 kg and 4 x 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Arsenic(III) oxide, 99%
Catalogue No.	VQ-015162
CAS Number	1327-53-3
IUPAC name	bis(arsenic(3+));tris(oxygen(2-))
Molecular formula	As₂O₃
Molecular weight	197.84 g/mol
Exact mass	197.8279
Grade	Synthesis
Purity / assay	99%
HSN code	28112920
InChIKey	QTLQKAJBUDWPIB-UHFFFAOYSA-N
SMILES	[O-2].[O-2].[O-2].[As+3].[As+3]
PubChem CID	14888

Physical properties
Physical form	Powder
Appearance	White powder
Melting point	312.2 °C
H-bond donors / acceptors	0 / 3
TPSA	3 Å²
UN number	UN 1561
Synonyms	Arsenic Trioxide, Arsenous Oxide, Arsenic sesquioxide, Arseneous oxide, Arseneous anhydride, White arsenic, Arsenic oxide (As2O3), Arseni trioxydum, Arsenious trioxide, Claudetite, Oxyde Arsenieux, Arsenious Acid Anhydride

Safety & hazard information (GHS)

Corrosive

Toxic

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H300Fatal if swallowed
H314Causes severe skin burns and eye damage
H350May cause cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P260, P264, P270, P273, P280, P301 + P316, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P318, P321, P330, P363, P391, 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 1327-53-3

Arsenic(III) oxide, 99.999%

CAS: 1327-53-3
Formula: As₂O₃
MW: 197.84 g/mol

VQ-015163

AR

Arsenic(III) oxide, GR 99%+

CAS: 1327-53-3
Formula: As₂O₃
MW: 197.84 g/mol

VQ-015164

ACS

Arsenic(III) oxide, primary standard ACS, 99.95-100.05%

CAS: 1327-53-3
Formula: As₂O₃
MW: 197.84 g/mol

VQ-015165

Technical

Arsenic(III) oxide, technical grade ≥95.0%

CAS: 1327-53-3
Formula: As₂O₃
MW: 197.84 g/mol

VQ-046960

Frequently asked questions

What is the CAS number of Arsenic(III) oxide, 99%?

The CAS Registry Number of Arsenic(III) oxide, 99% is 1327-53-3. It is also known as Arsenic Trioxide, Arsenous Oxide, Arsenic sesquioxide.

What is the molecular formula and molecular weight of Arsenic(III) oxide, 99%?

Arsenic(III) oxide, 99% has the molecular formula As2O3 and a molecular weight of 197.84 g/mol.

Which grade and pack sizes of Arsenic(III) oxide, 99% can I order?

We supply Arsenic(III) oxide, 99% in Synthesis (99%) grade, in 500 g, 5 kg, 25 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Arsenic(III) oxide, 99%?

Yes. Every lot of Arsenic(III) oxide, 99% 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(III) oxide, 99% be shipped internationally?

Yes. Arsenic(III) oxide, 99% 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.