Calcium Hypo Chloritemore_vert

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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. 

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Phenolphthalein pH Indicator 1% Solutionmore_vert

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Phenolphthalein is used as an acid or base indicator where, in contact or presence of acid, it will turn colorless and with a base, it will turn into a fuchsia color. It is also a component in universal indicator, a solution consisting of a mixture of pH indicators (usually phenolphthalein, methyl red, bromothymol blue, and thymol blue).

CAS Number 77-09-8
Empirical Formula (Hill Notation) C20H14O4
Molecular Weight 318.32

Phenolphthalein is another commonly used indicator for titrations,…..

Floor Stripper 5 Ltrmore_vert

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How to strip a floor  :::—
The purpose of stripping a floor is to remove all the old floor finish off the floor.  Over time floor finish can turn yellow and can build a haze.  If burnishing or polishing your floor does not correct this, it's probably time to strip your floors and do a new recoat.  Stripping a floor can be a quick and clean procedure if you have the correct tools for the job.  The use of a good floor stripper will make your life much easier, it's better to have the floor str…..