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Borax contains ALUMINIUM?

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To whom it may concern

I would like to know does all Borax contain ALUMINUM as I that on your state that on your specification of the 99.9% Pure Technical Grade does:

Specification:

ASSAY (AS DECAHYDRATE): 99.0 % minimum. ASSAY AS DECAHYDRATE: 99.5% BORON TRIOXIDE: 37.0% SODIUM MONOXIDE: 16.7% ALUMINIUM: 5 ppm. CALCIUM: 0 ppm. IRON: 20 ppm. MAGNESIUM: 10 ppm. SILICON: 400 ppm. CHLORIDE: 700 ppm. SULPHATE: 600 ppm. INSOLUBLE IN WATER: 0.02 %

Do I need Borax Pentahydrate the crystalline version instead or can I get a pure version totally Aluminum free?

asked Aug 14, 2014 by val (140 points)

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