20840
二甲胂酸钠 三水合物
≥98.0% (T), solid, purum. p.a.
别名:
二甲基胂酸 钠盐 三水合物, 二甲胂酸 钠盐, 卡可基酸 钠盐
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线性分子式:
(CH3)2AsO2Na · 3H2O
化学文摘社编号:
分子量:
214.03
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
204-708-2
MDL number:
Beilstein/REAXYS Number:
3702348
Assay:
≥98.0% (T)
Form:
solid
产品名称
二甲胂酸钠 三水合物, purum p.a., ≥98.0% (T)
form
solid
InChI key
RLGWPHBPRCROJO-UHFFFAOYSA-M
InChI
1S/C2H7AsO2.Na.3H2O/c1-3(2,4)5;;;;/h1-2H3,(H,4,5);;3*1H2/q;+1;;;/p-1
SMILES string
[Na+].[H]O[H].[H]O[H].[H]O[H].C[As](C)([O-])=O
grade
purum p.a.
assay
≥98.0% (T)
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
Quality Level
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Application
二甲砷酸钠三水合物可作为缓冲液，用于在电子显微镜研究中维持pH 7.4。 它可作为二甲砷酸盐缓冲液的组分，用于电子显微镜研究。
General description
二甲砷酸钠三水合物是一种生物缓冲液。已通过单晶X射线衍射研究分析了其晶体。研究表明，它的晶体呈现两相，即， 五-μ-水-二钠(I)双(砷酸二甲酯){[Na2(H2O)5](C2H6AsO2)2}n 和二-μ-水-双[三嗪(I)]双(砷酸二甲酯)[Na2(H2O)8](C2H6AsO2)2。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B
存储类别
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
法规信息
危险化学品
此项目有
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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