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Home ProductsBorax Acid Powder

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

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

Product Details:

Place of Origin: CHINA
Brand Name: YIXIN
Certification: ISO9001
Model Number: YXB-005

Payment & Shipping Terms:

Minimum Order Quantity: 1-20ton
Price: usd500-800 per ton
Packaging Details: 25kg/bag
Delivery Time: 5-12days after recieved deposit
Payment Terms: L/C, T/T, Western Union
Supply Ability: 5000ton/per month
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Detailed Product Description
Description: Boric Acid Other Name: Hydrogen Borate
CAS NO: 10043-35-3 HS CODE: 2810002000
UN NO: 1439 Color: White

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

 

sassolite.

 

 

  ► 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


 

 

 

►Specification

 

 

 

       Item

                             Specification 

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

 

 

 

 

 ►Preparation

 

 

     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

 

diborane

 

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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