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Main Group Metal & Metalloid Compounds (Al, Sn, Pb, Bi, Sb, Ga, In)

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

ACSAvailable on request

Buy Arsenic(III) oxide, primary standard ACS, 99.95-100.05% (CAS 1327-53-3) from Zemixal: As2O3, COA and SDS with every lot, worldwide shipping.

Pack sizes
Arsenic(III) oxide, primary standard ACS, 99.95-100.05% chemical structure
CAS number1327-53-3
FormulaAs2O3
Molar mass197.84 g/mol
Physical formPowder
HS code28112920
UN numberUN 1561
Purity99.95–100.05%
InChIKeyQTLQKAJBUDWPIB-UHFFFAOYSA-N
IUPAC namebis(arsenic(3+));tris(oxygen(2-))

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

Zemixal supplies Arsenic(III) oxide, primary standard ACS, 99.95-100.05% within its inorganic Chemicals, Metals & Advanced Materials portfolio. Identity at a glance (ACS): CAS 1327-53-3, formula As2O3 and molar mass 197.84 g/mol. It is described as white powder.

Where it is used

  • Materials research
  • Chemical synthesis

Storage and safety notes

Reported physical data: density 3.74 g/cm3. Hazard communication follows GHS (Danger: H300, H314, H350 and H400). Our SDS lists exposure controls and first-aid measures. For transport it ships as UN UN 1561.

Available as 25 g, 100 g, 125 g and 1 kg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Materials research
  • Chemical synthesis

Applications

Grade guides

Specifications and identifiers

Specifications of Arsenic(III) oxide, primary standard ACS, 99.95-100.05%
Product nameArsenic(III) oxide, primary standard ACS, 99.95-100.05%
Catalogue numberZX-014223
CAS number1327-53-3
IUPAC namebis(arsenic(3+));tris(oxygen(2-))
Molecular formulaAs2O3
Molar mass197.84 g/mol
Exact mass197.8279
GradeACS
Purity / assay99.95–100.05%
Physical formPowder
AppearanceWhite powder
Density3.74 g/cm3
H-bond donors / acceptors0 / 3
Topological polar surface area3 Ų
HS code28112920
UN numberUN 1561
InChIKeyQTLQKAJBUDWPIB-UHFFFAOYSA-N
SMILES[O-2].[O-2].[O-2].[As+3].[As+3]
PubChem CID14888
SynonymsArsenic trioxide, Arsenous acid primary standard, Arsenic oxide (As2O3), Arseni trioxydum, Arsenious trioxide, Claudetite, Oxyde Arsenieux, Arsenious Acid Anhydride, Acide arsenieux, Arsenic blanc, Arsenigen saure, Anhydride arsenieux

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS06 Acute toxicity
Acute toxicity
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Arsenic(III) oxide, primary standard ACS, 99.95-100.05%
25 gQuoted on request
100 gQuoted on request
125 gQuoted on request
1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

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

Which CAS number identifies Arsenic(III) oxide, primary standard ACS, 99.95-100.05%?
Arsenic(III) oxide, primary standard ACS, 99.95-100.05% is registered under CAS 1327-53-3. You may also see it listed as Arsenic trioxide, Arsenous acid primary standard, Arsenic oxide (As2O3). Our catalogue number for this item is ZX-014223.
What are the formula and molar mass of Arsenic(III) oxide, primary standard ACS, 99.95-100.05%?
For Arsenic(III) oxide, primary standard ACS, 99.95-100.05%, its formula is As2O3 and its molar mass is 197.84 g/mol. InChIKey QTLQKAJBUDWPIB-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Arsenic(III) oxide, primary standard ACS, 99.95-100.05%?
This listing is ACS grade with 99.95–100.05% purity. Standard packs are 25 g, 100 g, 125 g, 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Arsenic(III) oxide, primary standard ACS, 99.95-100.05%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Arsenic(III) oxide, primary standard ACS, 99.95-100.05% to my country?
Yes. Because Arsenic(III) oxide, primary standard ACS, 99.95-100.05% is classed as hazardous (UN 1561), it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

Other grades with CAS 1327-53-3

Bentonite
CAS
1302-78-9
Formula
Al2O34SiO2.xH2O
MW
368.38 g/mol
ZX-014224

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