Sodium Hypochlorite Solution, Used for Sterilizing Water and Swimming Pool...This will - Remove odors. Remove color. Improve permanganate time. |
1 |
Available Chlorine |
14-16% |
2 |
Ph |
11-13. |
3 |
Sp.Gravity |
1.23 - 1.40 |
4 |
Free Alkali (Per Lts ) |
0.42to0.5% |
5 |
Stability |
2 to 3 Month ( GENERAL ATMOSPHRIC TEMP ) OR more stable Below 18°C |
6 |
Viscocity |
0.98 |
7 |
Alkalinity |
1.99 |
8 |
Appearance |
Pale yellow / green |
9 |
Flash point |
None |
10 |
Turbidity |
nil |
11 |
CU |
NIL |
12 |
Biodegradable |
Completely biodegradable |
13 |
Free Acid |
None |
6% Sodium Hypochlorite Solution. Disinfectant for use in drinking water. Use one drop of solution per 10 ltrs of drinking water, 600 ml of solution per 36 tons of drinking water.
General formulation to calculate how much bleach is needed to add to a tank or a pipeline to disinfect it to a given chlorine residual using a given disinfectant. Usually someone wants to know how to meet an AWWA Standard (like C651-92, Disinfection of Water Mains). The equation below should be used to estimate the amount of sodium / Calcium hypochlorite (Chlorine Water is 6.00% sodium hypochlorite) needed to disinfect a given quantity of water to a desired chlorine concentration.
req'd residual in ppm |
For example , say you had installed a new 5,000 gallon tank and wanted to make sure that you had at least a 100 ppm solution of chlorine in it.
How much 6.00% Hypochlorite would you need to add ?
How much 12% Hypochlorite solution would you need ?
If you use calcium hypochlorite (the white, powder version of chlorine, like HTH pool cleaner), the equation becomes:
req'd residual in PPM |
Let's assume that we still need to disinfect 5,000 gallons at 100 ppm.
How many pounds of 65% calcium hypochlorite (HTH pool cleaner) are needed?
Injection -no.
Re-circulation - Following rough washing to a good Water White standard or better, apply dilute Bleach to 1-3% strength. Mix sufficient Bleach with fresh water in the tank and heat this mixture to 40 - 500C, circulate through the drop line if fitted and than circulate through butterworth machine for 3 hours. After re-circulation immediately warm butterworth to (500 C) the tank for 3 hours at maximum pressure, increase the water temperature to 80-850 C after 45 minutes. Check (by smell) that there is no Bleach remaining, then fresh water rinse and dry.
** When there are a number of tanks requiring re-circulation, it may be significantly more efficient to make up a large batch or number of batches that can be transferred on between tanks as required.
* Use a strainer at the pump stack when circulating any solution.
Tank Lining - Stainless / Zinc / Epoxy / Phenolic (Extreme care must be taken if product other than bleach substitute is to be used in any coated space).