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Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate

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Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate

Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate
Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate

Large Image :  Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate

Product Details:
Place of Origin: CHINA
Brand Name: YIXIN
Certification: ISO9001
Model Number: YXB-001
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: USD500-800/TON
Packaging Details: 50kg/pp bag 20FCL:25MT
Delivery Time: 3-12 working days
Payment Terms: T/T, Western Union, L/C, D/P
Supply Ability: 3000 ton per month

Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate

Description
Description: Borax Decahydrate EINECS: 215-540-4
HS CODE: 2840190000 Brand: Yixin
Boiling Point: 1575 °C Melting Point: 741°C
High Light:

sodium tetraborate decahydrate

,

sodium borate decahydrate

95% Borax decahydrate powder use for flux and fire retardant with

ISO9001 CAS NO 1303964

 ►Origin of Borax Decahydrate   

 

 

 • Sodium tetraborate was first discovered in dry lake beds in Tibet and was

 

imported via the Silk Road to the Arabian Peninsula in the 8th Century

 

AD. 

 

•Borax first came intocommon use in the late 19th century whenFrancis

 

Marion Smith's Pacific Coast Borax Company began to market and popularize a

 

large variety of applications.Borax is a component of many detergents,

 

cosmetics, and enamel glazes.

 

• It is used to make buffer solutions in biochemistry, as a fire retardant, as an

 

anti-fungal compound, in the manufacture of fiberglass, as a flux in

 

metallurgy,neutron-capture shields for radioactive sources, a texturing agent in

 

cooking, as a precursor for other boron compounds, and along with its inverse,

 

boric acid, is useful as an insecticide.In artisanal gold mining, the borax method

 

is sometimes used as a substitutefor toxic mercury in the gold extraction

 

process.

 

•Borax was reportedly used by gold miners in parts of the Philippines in the

 

1900s.

 

 ►Product description

       

 

      1. Borax Decahydrate is the refined form of natural sodium borate. Composed of

 

boric oxide (B2O3), sodium oxide, and water, it is a mild, alkaline salt, white and

 

crystalline, with excellent buffering and fluxing properties.

 

2. Available in powder or granular form.Borax Decahydrate is an important

 

multifunctional source of B2O3, particularly for processes in which the

 

simultaneous presence of sodium is beneficial.Borax decahydrate , also known

 

as sodium borate, is an important boron compound, a mineral, and a salt of boric

 

acid.Powdered borax is white, consisting of soft colorless crystals that dissolve

 

easily in water.

          

 

 

   

Poruct name

borax decahydrate

Molecular formula   Na2B4O7.10H2O
Molecular wight  381.37
Properties  White power or crystal granular 
Purity   95% min 
UN number   1458


 

 

      

 ►Specification

 

 

             Item 

 Specification for borax decahydrate  powder 95%

            Na2B4O7.10H2O  95.00%
 B2O3    ≥36.47%
Na2O     ≥16.47%
Na2CO3 ≤0.2%
NaCL ≤0.5%
Fe     ≤0.005%
Water insoluble    ≤0.04%

 

 

 

►Features 

 

  1. Borax Decahydrate is chemically stable under normal storage conditions.

 

  2. It will slowly lose water of crystallisation if exposed to a warm, dry atmosphere.

 

Conversely, exposure to a humid atmosphere can cause recrystallisation at particle

 

contact points, resulting in caking.

 

  3. When storing the product, care should therefore be taken to avoid wide

 

fluctuations in temperature and humidity, and to ensure that the packaging is not

 

damaged.

 

  4. Dissolved in water, Borax Decahydrate hydrolyzes to give a mildly alkaline

 

solution.

 

 5. It is thus capable of neutralizing acids. It also combines with strong alkalis to

 

form compounds of lower pH.

 

  6. The relatively constant pH of Borax Decahydrate solutions

 

makes it an excellent buffering agent

 ►Application

 

Flux

 

A mixture of borax and ammonium chloride is used as a flux when welding iron and

 

steel. It lowers the melting point of the unwanted iron oxide (scale), allowing it to

 

run off. Borax is also used mixed with water as a flux when soldering jewelry metals

 

such as gold or silver. It allows the molten solder to flow evenly over the joint in

 

question. Borax is also a good flux for "pre-tinning" tungsten with zinc – making the

 

tungsten soft-solderable.Borax is often used as a flux for forge welding.

 

 

· Fire retardant

 

 

Flux / Fire Retardant Sodium Tetraborate , ISO9001 Approval Tetraborate Decahydrate 0

 

· Anti-fungal compound for cellulose insulation

 

· Moth proofing 10% solution for wool

 

· Pulverized for the prevention of stubborn pests (e.g. German cockroaches) in

 

closets, pipe and cable inlets, wall panelling gaps, and inaccessible locations

 

where ordinary pesticides are undesirable

 

 

 

Packing details 

 

Packing :25/50KG plastic pp bag

              1 ton /jumbo bag ,or customized.

Contact Details
Shanghai Yixin Chemical Co., Ltd.

Contact Person: anny

Tel: +8613391072385

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