Fluka

Sodium thiosulfate pentahydrate

SKU

13479

Puriss., meets analytical specification of USP, 99-101%

Synonym(s)

Sodium thiosulphate

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General Information:

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Brand Fluka	CAS Numbers (All) 10102-17-7	EC Number 231-867-5	Linear Formula Na₂S₂O₃ · 5H₂O	MDL Number MFCD00149186
Molar Mass 248.18 g/mol	RTECS Number 231-867-5	Synonyms Sodium thiosulphate

Property	Value
identity	complying
assay	99.0 - 101.0 %
assay (calc.on the anhydrous basis)	99.0 - 100.5 %
loss on drying (vakuum, 16 h)	32.0 - 37.0 %
pH (10 %, 20°C)	6.0 - 9.0
arsenic (As)	Max. 0.0003 %
calcium (Ca)	Max. 0.005 %
iron (Fe)	Max. 0.001 %
heavy metals (as Pb)	Max. 0.0005 %
chloride (Cl)	Max. 0.05 %
sulfate and sulfite(as SO4)	Max. 0.2 %
sulfide (S)	complying
appearance of the solution	complying
residual solvents	complying

Property	Value
Autoignition Temperature	Not auto-flammable
Boiling Point/Range	Decomposes on heating.
Color	colourless
Concentration	99.00-101.00%
Density	1.73 g/cm3 (20 °C)
Flashpoint	Not applicable
Form	Crystalline
Grade	Reagent Grade
Incompatible Materials	Incompatible with strong acids, oxidizers and nitrates.
Lower Explosion Limit	Not applicable
Melting Point/Range	48 °C.Decomposition
Partition Coefficient	No data available
Purity Percentage	99.00
Purity Details	99.00-101.00%
Solubility in Water	(0 °C)
Upper Explosion Limit	Not applicable
Vapor Density	1.73 g/cm3 (20 °C)
Vapor Pressure	No data available
Viscosity	Not applicable
pH-Value	6.0 - 7.5 at100 g/l (25 °C)
Product Line	Puriss.
Storage Temperature	Room Temperature

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