S7143
硫代硫酸钠 五水合物
ACS reagent, pH 6.0-8.4 (25 °C, 5% in solution), 99.5-101.0%
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线性分子式:
Na2S2O3 · 5H2O
化学文摘社编号:
分子量:
248.18
EC Number:
231-867-5
UNSPSC Code:
12352200
MDL number:
InChI key
PODWXQQNRWNDGD-UHFFFAOYSA-L
InChI
1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2
SMILES string
O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=S
grade
ACS reagent
assay
99.5-101.0%
impurities
≤0.002% Nitrogen compounds (as N), ≤0.005% Insoluble matter
pH
6.0-8.4 (25 °C, 5% in solution)
anion traces
sulfate, sulfite (as SO42-): ≤0.1%, sulfide (S2-): passes test (limit about 1 ppm)
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存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
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