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20840

Sodium cacodylate trihydrate

≥98.0% (T), solid, purum. p.a.

Synonym(s):

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

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About This Item

Linear Formula:
(CH3)2AsO2Na · 3H2O
CAS Number:
6131-99-3
Molecular Weight:
214.03
NACRES:
NA.21
PubChem Substance ID:
57647877
UNSPSC Code:
12352100
EC Number:
204-708-2
MDL number:
MFCD00149079
Beilstein/REAXYS Number:
3702348
Assay:
≥98.0% (T)
Form:
solid
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Product Name

Sodium cacodylate trihydrate, purum p.a., ≥98.0% (T)

grade

purum p.a.

Quality Level

200

assay

≥98.0% (T)

form

solid

anion traces

chloride (Cl-): ≤100 mg/kg, sulfate (SO42-): ≤200 mg/kg

cation traces

Ca: ≤100 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, K: ≤500 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg

SMILES string

[Na+].[H]O[H].[H]O[H].[H]O[H].C[As](C)([O-])=O

InChI

1S/C2H7AsO2.Na.3H2O/c1-3(2,4)5;;;;/h1-2H3,(H,4,5);;3*1H2/q;+1;;;/p-1

InChI key

RLGWPHBPRCROJO-UHFFFAOYSA-M

General description

Sodium cacodylate trihydrate is a biological buffer. Its crystals have been analyzed by single-crystal X-ray diffraction studies. Studies suggested its crystals exhibited two phases, viz. penta-μ-aqua-disodium(I) bis(dimethylarsenate), {[Na2(H2O)5](C2H6AsO2)2}n and di-μ-aqua-bis[triaquasodium(I)] bis(dimethylarsenate), [Na2(H2O)8](C2H6AsO2)2.

Application

Sodium cacodylate trihydrate may be employed as buffer to maintain pH 7.4 in electron microscopic studies. It may be used to compose cacodylate buffer for use in electron microscopic studies.

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Danger

Hazard Classifications

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

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH1167
BCCD4275
BCBZ4430
BCBV9563
BCBQ3452V

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Anders Lennartson et al.
Acta crystallographica. Section C, Crystal structure communications, 64(Pt 1), m13-m16 (2008-01-25)
Crystals from commercial samples of sodium cacodylate trihydrate, NaO2As(CH3)2 x 3 H2O, were analyzed by single-crystal X-ray diffraction and two phases were identified, viz. penta-mu-aqua-disodium(I) bis(dimethylarsenate), {[Na2(H2O)5](C2H6AsO2)2}n, (I), and di-mu-aqua-bis[triaquasodium(I)] bis(dimethylarsenate), [Na2(H2O)8](C2H6AsO2)2, (II). Both (I) and (II) form layered structures
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Global Trade Item Number

SKUGTIN
G3002-10G04061838354587
20840-100G-F04061838769787
20840-500G-F04061838769800
20840-25G-F04061838769794