Testing Water Hardness

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mazcheck
Posts: 54
Joined: 26 May 2010, 12:02
State/Location: NSW

Testing Water Hardness

Post by mazcheck »

Had to make a standard soap solution and used a recipe that dissolves, via boiling, soap flakes in metho. However, the solution keeps solidifying extremely quickly - so much so, the Year 12 class struggled to use it. Does anyone have a different recipe or ideas?
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