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 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 |
| 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 | ‐ |
Nippon Light Metal Company, Ltd.,
Chemicals Division
To download PDF document of SHC5® technical data, click here.
