20840

Natriumkacodylat Trihydrat

≥98.0% (T), solid, purum. p.a.

• Synonym(e): Cacodylsäure Natriumsalz Trihydrat, Dimethylarsinsäure Natriumsalz, Dimethylarsonsäure Natriumsalz
• Lineare Formel: (CH₃)₂AsO₂Na · 3H₂O
• CAS-Nummer: 6131-99-3
• Molekulargewicht: 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

Eigenschaften

• Produktname: Natriumkacodylat Trihydrat, purum p.a., ≥98.0% (T)
• grade: purum p.a.
• Quality Segment: 200
• assay: ≥98.0% (T)
• form: solid
• anion traces: chloride (Cl^-): ≤100 mg/kg, sulfate (SO₄^2-): ≤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

Beschreibung

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.[1]

Application

Sodium cacodylate trihydrate may be employed as buffer to maintain pH 7.4 in electron microscopic studies.[2][3] It may be used to compose cacodylate buffer for use in electron microscopic studies.[4]

Sicherheitshinweise

• pictograms: GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H301 + H331,H350,H410
• pcodes: P202 - P261 - P264 - P273 - P301 + P310 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B
• Lagerklasse: 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