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Hs Code 2810002000 Boron Boric Acid , Un No 1439 Hydrogen Borate Pure Powder

Hs Code 2810002000 Boron Boric Acid , Un No 1439 Hydrogen Borate Pure Powder

boric acid crystals

pure boric acid

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Product Details
Boric Acid
Other Name:
Hydrogen Borate
Product Description

99.5% white powder boric acid use for glass and ceramic making

H3BO3CAS NO 10043-35-3


►Origin of Boric acid 



    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





  ► Occurrence


    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



Poruct name

 Boric acid 

Molecular formula  H3BO3
Molecular wight  61.83
Properties  Colorless crystal or white powder 
Purity  99.5%
UN number  1439










H3BO3 99.50%
NH3 0.60%
SO4 0.30%
CL ≤0.15%
Fe ≤0.06%
Water insoluble ≤0.06%








     Boric acid may be prepared by reacting borax (sodium tetraborate


decahydrate) with a mineral acid, such as hydrochloric acid:


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


It is also formed as a by product of hydrolysis of boron trihalides and




B2H6 + 6 H2O → 2 B(OH)3 + 6 H2


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




 ►Application in Industry




1. Monofilament fiberglass



   The primary industrial use of boric acid is in the manufacture of monofilament


fiberglass usually referred to as textile fiberglass. Textile fiberglass is used to


reinforce plastics in applications that range from boats, to industrial piping to


computer circuit boards.




 2. Combination with denatured alcohol



In the jewelry industry, boric acid is often used in combination with denatured


alcohol to reduce surface oxidation and firescale from forming on metals during


annealing and soldering operations.



3. LCD flat panel displays



   Boric acid is used in the production of the glass in LCD flat panel displays.

Packing details



Packing :25/50KG plastic pp bag


1 ton /jumbo bag ,or customized.



Packing details



MOQ :1-20TON 


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