Orthoboric acid

1)Molecular formula: BH3O3 2)CAS: 10043-35-3 3)Appearance: Colorless transparent crystal 4)Properties: white powder

molecular formula: BH3O3

CAS: 10043-35-3

Appearance: Colorless transparent crystal

Properties:

Boric acid, for white powder crystallization or three inclined shaft side flake crystallization, have satiny gloss, no odor. Handle Soluble in water, alcohol, glycerin, ethers and oils, aqueous show weakly acidic.

Use:

Widely used for the glass (optical glass, acid glass, heat-resistant glass, insulating material with fiberglass) industry, can improve glass products of heat, transparent performance and improve mechanical strength, shorten dissolve melting time.

Details

Test item	Specification
	Reagent grade	Pharmaceutical grade
Appearance	Conform	Conform
Assay	≥99.5	≥99.0
Clarify degrees experiment	Conform	Conform
Ethanol dissolution test	Conform	Conform
Water insoluble, / %	≤0.005	≤0.02
Methanol non-volatile substances (sulfate)/%	≤0.05	≤0.3
chloride(Cl)/%	≤0.0005	≤0.002
sulfate(SO4)/%	≤0.002	≤0.01
phosphate (PO4)/%	≤0.0005	≤0.003
Arsenic (As) /%	≤0.0001	≤0.0005
Calcium (Ca) /%	≤0.002	≤0.01
Iron(Fe) /%	≤0.0005	≤0.002
(Pb) /%	≤0.001	≤0.003

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