S9663
砷酸二钠 七水合物
ACS reagent, ≥98%
别名:
di-Sodium hydrogen arsenate 七水合物, 砷酸氢二钠 七水合物
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关于此项目
线性分子式:
Na2HAsO4 · 7H2O
化学文摘社编号:
分子量:
312.01
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
Assay:
≥98%
98.0-102.0%
98.0-102.0%
Grade:
ACS reagent
Form:
powder
产品名称
砷酸二钠 七水合物, ACS reagent, ≥98%
InChI
1S/AsH3O4.2Na.7H2O/c2-1(3,4)5;;;;;;;;;/h(H3,2,3,4,5);;;7*1H2/q;2*+1;;;;;;;/p-2
SMILES string
O.O.O.O.O.O.O.[Na+].[Na+].O[As]([O-])([O-])=O
InChI key
KOLXPEJIBITWIQ-UHFFFAOYSA-L
grade
ACS reagent
assay
≥98%
98.0-102.0%
form
powder
impurities
≤0.005% Insoluble matter
pH
8.5-9 (25 °C, 50 g/L)
anion traces
arsenite (As2O3): ≤0.01%
chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.005%
sulfate (SO42-): ≤0.01%
cation traces
Fe: ≤0.001%
heavy metals (as Pb): ≤0.002%
Quality Level
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Application
七水合砷酸二钠可作为各种光谱方法定量砷种类的内标。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
危险化学品
此项目有
M Sri Lakshmi Sunita et al.
Ecotoxicology (London, England), 21(1), 202-212 (2011-09-01)
In the present study, 44 arsenic-resistant bacteria were isolated through serial dilutions on agar plate with concentrations ≥0.05 mM of sodium arsenite and ≥10 mM of sodium arsenate from Mandovi and Zuari--estuarine water systems. The ars genotype characterization in 36
Tatyana S Pinyayev et al.
Chemical research in toxicology, 24(4), 475-477 (2011-03-11)
The conventional scheme for arsenic methylation accounts for methylated oxyarsenical production but not for thioarsenical formation. Here, we report that in vitro anaerobic microbiota of mouse cecum converts arsenate into oxy- and thio- arsenicals. Besides methylarsonic acid (MMA(V)), arsenate was
William Brattin et al.
Journal of toxicology and environmental health. Part A, 76(7), 458-478 (2013-04-25)
This report summarizes the results of a study to develop an in vitro bioaccessibility (IVBA) extraction technique for estimating the relative bioavailability (RBA) of arsenic (As) in soil. The study was implemented in several steps. In step 1, key variables
John F Taylor et al.
Journal of toxicology and environmental health. Part A, 76(3), 167-175 (2013-01-30)
The use of dietary adsorbents to reduce arsenic (As) exposure is innovative. Ferrihydrite successfully sorbs arsenite and asenate over a wide range of pH conditions and the As-ferrihydrite complexes are stable in gastrointestinal (GIT) models. Our objectives were to (1)
Karen D Bradham et al.
Environmental health perspectives, 119(11), 1629-1634 (2011-07-14)
Assessment of soil arsenic (As) bioavailability may profoundly affect the extent of remediation required at contaminated sites by improving human exposure estimates. Because small adjustments in soil As bioavailability estimates can significantly alter risk assessments and remediation goals, convenient, rapid
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