13479
Sodium thiosulfate pentahydrate
puriss., meets analytical specification of Ph. Eur., BP, USP
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About This Item
Quality Level
agency
suitable for EPA 1621, suitable for ISO 25101
grade
puriss.
assay
99.0-100.5% (USP, dry basis), 99.0-101.0% (EP)
form
crystalline
quality
meets analytical specification of Ph. Eur., BP, USP
impurities
residual solvents, complies, ≤0.0005% heavy metals (as Pb)
loss
32-37% loss on drying, 16 h (vacuum)
pH
6.0-8.4 (20 °C, 10%)
anion traces
sulfate, sulfite (as SO42-): ≤2000 mg/kg, sulfide (S2-): in accordance
cation traces
As: ≤3 mg/kg, Ca: ≤50 mg/kg, Fe: ≤10 mg/kg
suitability
complies for appearance of solution
application(s)
PFAS testing
SMILES string
O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=S
InChI
1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2
InChI key
PODWXQQNRWNDGD-UHFFFAOYSA-L
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flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
13 - Non Combustible Solids
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