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1.06513

Sodium thiosulfate pentahydrate

Name: Sodium thiosulfate pentahydrate
Brand: MM

pure

Synonym(s):

Sodium thiosulfate pentahydrate, Antichlor

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About This Item

Empirical Formula (Hill Notation):

Na₂O₃S₂ · 5H₂O

CAS Number:

10102-17-7

Molecular Weight:

248.18

UNSPSC Code:

12352302

EC Index Number:

231-867-5

MDL number:

MFCD00149186

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Properties

Quality Segment

100

form

solid

pH

6.0-7.5 (20 °C, 100 g/L in H₂O)

mp

48 °C

solubility

701 g/L

density

1.74 g/cm³ at 20 °C

application(s)

pharma/biopharma processes

storage temp.

2-30°C

SMILES string

[Na+].[Na+].[S](=S)(=O)([O-])[O-].O.O.O.O.O

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

Description

Application

Sodium thiosulfate pentahydrate is used as antioxidant or chelating agent and is suitable for use in pharmaceutical processes.

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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