Skip to Content
Merck
CN

Key Documents

View All Documentation

11101

Arsenic(III) oxide

purum p.a., ≥99.0% (RT)

Synonym(s):

Arsenic trioxide, Arsenous acid

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
As2O3
CAS Number:
1327-53-3
Molecular Weight:
197.84
EC Number:
215-481-4
UNSPSC Code:
12352300
MDL number:
MFCD00003433
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

purum p.a.

assay

≥99.0% (RT)

anion traces

sulfide (S2-): ≤100 mg/kg

cation traces

Co: ≤50 mg/kg, Fe: ≤100 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Sb: ≤500 mg/kg

SMILES string

O=[As]O[As]=O

InChI

1S/As2O3/c3-1-5-2-4

InChI key

IKWTVSLWAPBBKU-UHFFFAOYSA-N

Still not finding the right product?

Explore all of our products under Arsenic(III) oxide

signalword

Danger

Hazard Classifications

Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Eye Dam. 1 - Skin Corr. 1B - STOT RE 1

target_organs

Respiratory system,Cardio-vascular system,Gastrointestinal tract

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

Regulatory Information

新产品

This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library