Sodium Thiosulfate, Pentahydrate, Crystal, USP, EP, BP, JP

Sodium Hyposulfite

 

U.S.P. Functional Use: Antioxidant

 

Chemical Formula

Na2S2O3.5H2O

Molecular Weight

F.W. 248.19

CAS #

10102-17-7

 

Safety Information

Health Hazard

2

Fire Hazard

0

Reactivity

0

Material Safety Data Sheet

 

Test

Specification

Assay (Na2S2O3; Anhydrous Basis)99.0-100.5%
Water32.0-37.0%
MAXIMUM LIMITS
CalciumTo pass test
Heavy Metals (as Pb)10 ppm
pH of a 10% Solution6.0-8.0
Chloride200 ppm
Sulfate and Sulfites0.2%
SulfidesTo pass test
Co

 

UPS limit

150 lb

Storage Information

HYGROSCOPIC: Keep tightly closed.

Chemical information and descriptions have been provided by Spectrum Chemicals.

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 SO210-10   Sodium Thiosulfate, Pentahydrate, Crystal, USP, EP, BP, JP - Sodium Thiosulfate, Pentahydrate, Crystal, USP, EP, BP, JP - Na2S2O3.5H2O - 500 GM SO210-10 $278.08
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