High Purity Boricum Acidum Powder 61.83 Molecular Weight Hs Code 2810002000

UN NO 1439 white boracic acid powder can make glass ceramics and

enamel glazing

► Description 

     Boric acid, also called hydrogen borate, boracic acid, orthoboric acid and

acidum boricum, is a weak, monobasic Lewis acid of boron, which is often

used as an antiseptic, insecticide, flame retardant, neutron absorber, or

precursor to other chemical compounds. It has the chemical formula H3BO3

(sometimes written B(OH)3), and exists in the form of colorless crystals or a

white powder that dissolves in water. When occurring as a mineral, it is called

sassolite.

    Boric acid, or sassolite, is found mainly in its free state in some volcanic

districts, for example, in the Italian region of Tuscany, the Lipari Islands and

the US state of Nevada. In these volcanic settings it issues, mixed with steam,

from fissures in the ground. It is also found as a constituent of many

naturally occurring minerals – borax, boracite, ulexite (boronatrocalcite) and

colemanite. Boric acid and its salts are found in seawater. It is also found in

plants, including almost all fruits.

Boric acid was first prepared by Wilhelm Homberg (1652–1715) from borax,

by the action of mineral acids, and was given the name sal sedativum

Hombergi ("sedative salt of Homberg"). However borates, including boric

acid, have been used since the time of the ancient Greeks for cleaning,

preserving food, and other activities.

►Product description

►Specification

 ►Preparation

Na2B4O7·10H2O + 2 HCl → 4 B(OH)3 [or H3BO3] + 2 NaCl + 5 H2O

B2H6 + 6 H2O → 2 B(OH)3 + 6 H2

BX3 + 3 H2O → B(OH)3 + 3 HX (X = Cl, Br, I)

►Packing details

Packing :25/50KG plastic pp bag

1 ton /jumbo bag ,or customized.