SHC5 Sodium Hypochlorite Pentahydrate NaOCl·5H2O

Notable features of SHC5®

High concentration

  • The available chlorine concentration of SHC5® is 42% (44% as NaClO), while that of conventional aqueous sodium hypochlorite solution is 12%.
  • SHC5® is about 3.5 times higher in concentration ratio.
  • Significant waste reduction is achievable.

Comparison of conventional aq. NaClO solution
with SHC5® under the same molar condition.

High purity

  • SHC5® prepared by our patented manufacturing process is a high-purity product that contains minimal amounts of NaOH, NaCl, NaClO3, NaBrO3 and metal impurities such as iron and chromium.
 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

High stability

  • SHC5® is stable for 1 year below 7℃ in a tightly sealed plastic container stored in the dark.
  • High available chlorine concentration is maintained for about 1 week at 20℃, but decomposition accelerates and produces sodium chloride and sodium chlorate (NaClO3) ※ during prolonged storage.
    It decomposes markedly in the molten state (30℃).
  • Decomposition of SHC5® produces sodium chlorate (NaClO3) which violently reacts in contact with organic materials, sulfur and metal powder. SHC5® should be kept away from them. Make sure to seal tightly and store below 7℃ in the dark.

Adjustable to highly concentrated solution

  • Insoluble in most organic solvents. (Alcoholic solvents may react with SHC5® and corresponding oxidized compounds are formed.)
  • Any concentration of the solution (approx. ≦ 30%) can be prepared simply by dissolving SHC5® with water.
  • 20% NaClO solution prepared from SHC5® is stable even after 24 hours at 20℃.
Target concentration
(Available Chlorine)
[%]		SHC5®
[g]		Water
[g]		Density
(solution)
[g/cm3]
0.1 2.4 996.7 1.00
1.0 24.0 983.0 1.01
5.0 124.0 918.0 1.04
10.0 258.8 828.2 1.09
13.0 345.1 769.9 1.12
15.0 405.0 729.0 1.13
20.0 562.4 618.6 1.18
25.0 732.1 497.9 1.23
30.0 914.3 365.7 1.28

Oxidizability of SHC5®

  • Most of other oxidizing reagents have toxic and explosive issues. However, SHC5® does not have these kinds of risks and it is an eco-friendly oxidizing reagent, only sodium chloride and water generate as by-products.
  • Owing to high available chlorine concentration (42%) of SHC5®, it allows higher volumetric efficiency.
  • SHC5® can be applied to various reactions as shown below.

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