A 12% solution is widely used in waterworks for the chlorination of water and a 15% solution is more commonly used for disinfection of waste water in treatment plants. High-test hypochlorite (HTH) is sold for chlorination of swimming pools and contains approximately 30% calcium hypochlorite. The crystalline salt is also sold for the same use; this salt usually contains less than 50% of calcium hypochlorite. However, the level of active chlorine may be much higher.
Chlorine Stabilization
Chlorine gas in water form HOCL which reacts with stabilizer and form N-Chloro-Sulphamic Acid to N-ChloroSufamic Acid more stable and yet has active chlorine,
Technical Bulletin
18% wt. SODIUM HYPOCHLORITE – EXTRA – PURE
| Parameters | Specification Range | Typical |
|
Sodium Hypochlorite as NaOCl (%wt) |
16 – 18.2 | 18.0 |
| Available Chlorine (%wt) | 16 – 16.6 | 16.4 |
| Available Chlorine (%vol) | 14.3 – 17.3 | 17.0 |
| Available Chlorine grams/liter | 153 – 180 | 171 |
| Excess Caustic (%wt) | 0.25 – 0.80 | 0.30 |
| Specific Gravity @ 60°F | 1.197 – 1.220 | 1.210 |
| pH | 12.0 – 13.0 | 12.50 |
| Iron (Fe) ppm | <0.5 | 0.05 |
| Nickel (Ni) ppm | <0.2 | 0.02 |
| Copper (Cu) ppm | <0.2 | 0.05 |
| Mercury (Hg) ppb | 0.001 – 0.003 | 0.002 |
| Sodium Chloride (NaCl)% | <15.0 | 12.5 |
Appearance: Clear greenish-yellow liquid miscible in any proportion with water.
Product Label
12% – 15% solution is widely used as cleaning solution is very effective to clean / wash SURFACE.
HANDLING AND STORAGE PRECAUTIONS:
Do not store adjacent to chemicals that may react if spillage occurs. When shipped. If closed containers become heated, vent to release decomposition products (mainly oxygen under normal decomposition). Do not mix or contaminate with ammonia, hydrocarbons, acids, alcohol or ethers.
