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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:
Molecular Weight:
214.03
MDL number:
UNSPSC Code:
12352107
EC Index Number:
204-708-2
NACRES:
NA.22

Quality Level

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

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


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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