Neutralising Powder. The encapsulating powder neutralises to Ph7 and adsorbs, the colour changes from red to purple for Acid or blue to orange for Alkali, to indicate neutral.
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Acid Neutralising Powder 1 Litre
Neutralising Powder. The encapsulating powder neutralises to Ph7 and adsorbs, the colour changes from red to purple for Acid or blue to orange for... read on