Boric acid colorless crystal or white powder usage: buffer; preservative; making borates

Boric acid

colorless crystal or white powder

AR grade:

assay >=99.5%

non-volatile substances in methanol <=0.05%

clarity of solution: passes test

substances soluble in ethanol: passes test

chloride <=0.0005%

substances insoluble in water <=0.005%

phosphate(PO4) <=0.0005%

sulfate(SO4) <=0.002%

As <=0.0001%

Ca <=0.002%

Fe <=0.0005%

Pb <=0.001%

usage: buffer; preservative; making borates

Boric acid