What is sodium hypochlorite pentahydrate (SHC5®) ?

Although the existence of “sodium hypochlorite pentahydrate” has been known for a long time, only aqueous solution of about 12% has been industrially available.
Nippon Light Metal Company has succeeded in producing sodium hypochlorite pentahydrate in industrial scale for the first time in the world and launched a new product in 2013, under the name of "SHC5" which is abbreviated name of Sodium HypoChlorite Penta(5)hydrate.

Notable features of SHC5®

Chemical and physical properties

Chemical property

  Chemical
components
SHC5® Conventional
aq.
NaClO soln.
Specification Available
chlorine
[%]
(Typical value)
≧39.0
(42.0)
≧12.0
(12.8)
Aqueous
solution
Pale yellow
transparent
Composition NaOH[%] 0.05 0.8
NaCl[%] 0.12 12.4
NaClO3[%] 0.05 0.9
NaBrO3[%] 0.005 0.01

Physical property

  SHC5® Conventional
aq.
NaClO soln.
Molecular
formula
NaClO・5H2O NaClO
Molecular
weight
164.52 74.44
Appearance Pale yellow
crystals
Pale yellow
liquid
Density
[g/cm3]
1.1-1.2
Untapped bulk
density [g/cm3]
0.8
Solubility Insoluble in
organic solvent
Heat of
dissolution
[J/g]
293
(Endothermic)
Melting point
[℃]
25-27
  • The concentration of available chlorine can be calculated by converting the weight percent of sodium hypochlorite into its equivalent as chlorine molecule shown in the following equation. One molecule of sodium hypochlorite corresponds to one molecule of chlorine.

CONTACT US

Nippon Light Metal Company, Ltd.,
Chemicals Division

  • Market Development Department
    TEL:+81-3-6810-7109

CONTACT US

To download PDF document of SHC5® technical data, click here.

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