S9663

Sodium arsenate dibasic heptahydrate

ACS reagent, ≥98%

• Synonym(s): Disodium hydrogen arsenate heptahydrate, di-Sodium hydrogen arsenate heptahydrate
• Linear Formula: Na₂HAsO₄ · 7H₂O
• CAS Number: 10048-95-0
• Molecular Weight: 312.01
• MDL number: MFCD00149179
• UNSPSC Code: 12352302
• PubChem Substance ID: 329824631
• NACRES: NB.24

Properties

• grade: ACS reagent
• Quality Level: 200
• 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 (SO₄^2-): ≤0.01%
• cation traces: Fe: ≤0.001%; heavy metals (as Pb): ≤0.002%
• SMILES string: O.O.O.O.O.O.O.[Na+].[Na+].O[As]([O-])([O-])=O
• InChI: 1S/AsH3O4.2Na.7H2O/c2-1(3,4)5;;;;;;;;;/h(H3,2,3,4,5);;;7*1H2/q;2*+1;;;;;;;/p-2
• InChI key: KOLXPEJIBITWIQ-UHFFFAOYSA-L

Description

Application

Sodium arsenate dibasic heptahydrate can be used as an internal standard for the quantification of arsenic species using various spectroscopic methods.

Safety Information

• 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. 1A
• Storage Class: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable