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