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Key Documents

8.20670

Sigma-Aldrich

Dimethylarsinic acid sodium salt trihydrate

for synthesis

Synonym(s):

Dimethylarsinic acid sodium salt trihydrate, Dimethylarsinic acid sodium salt, Cacodylic acid sodium salt

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About This Item

Empirical Formula (Hill Notation):
C2H6AsNaO2 · 3H2O
CAS Number:
6131-99-3
Molecular Weight:
214.03
MDL number:
MFCD00149079
UNSPSC Code:
12352107
EC Index Number:
204-708-2
NACRES:
NA.22

Quality Level

200

form

solid

potency

>2000 mg/kg LD50, skin (Rabbit)

pH

9.0-9.5 (20 °C, 100 g/L in H2O)

mp

60 °C

solubility

2000 g/L

bulk density

870 kg/m3

storage temp.

2-30°C

InChI

1S/C2H7AsO2.Na/c1-3(2,4)5;/h1-2H3,(H,4,5);/q;+1/p-1

InChI key

IHQKEDIOMGYHEB-UHFFFAOYSA-M

Analysis Note

Assay (HClO₄): ≥ 97.0 %
Identity (IR): passes test

Signal Word

Danger

Hazard Statements

H301 + H331 - H350 - H410

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Certificates of Analysis (COA)

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