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Borax Anhydrous

Molecular weight : 201.22

Appearance: white powder, colorless crystal

Density:2.28g/cm3

Melting point :742.5℃

Highly hygroscopic, soluble in water, slowly soluble in methanol, and can form a solution with a concentration of 13-16%.

Metallurgical level smelting and casting, metal ingots, heat-resistant and high-quality glass, optical glass manufacturing. It can also be used as a flux for alloys.
Borax Decahydrate

Molecular weight : 381.37

Odorless, salty taste

Density:1.73g/cm3

Melting point :Heat to 350-400 ℃ convert to Na2B4O7

Easily soluble in water, also soluble in glycerol, insoluble in alcohol. Its aqueous solution is weakly alkaline and appears as a colorless glass when melted.

It has important and widespread applications in metallurgy, steel, machinery, papermaking, electron tubes, chemicals, and textiles.
Borax Pentahydrate

Molecular weight : 291.3

White crystalline powder

Density:1.815g/cm3

Melting point :Heat to 120℃ losing crystal water

Easily soluble in hot water and glycerol, slightly soluble in ethanol and carbon tetrachloride. The aqueous solution is alkaline.

It is recrystallized from a decahydrate sodium tetraborate solution at a crystallization temperature above 60°C, then filtered and dried below 120°C. It can also be obtained by dissolving natural boron ore in hot water.
Chemical and Physical Properties

A highly concentrated source of boric oxide for glazes. Anhydrous borax is made by burning or fusing hydrated borax. It thus contains little or no water of crystallization and does not rehydrate under normal storage conditions. Anhydrous borax is water soluble, but considerably less so than raw borax (in aqueous solution it can provide slow release of boron).

Index name Index

Borax anhydrous  (Na2B4O7)

%≥

99-99.9
Boric acid (B2O3 )

%≤

68-69.4
Sodium oxide(Na2O)

%≤

30.0-30.9
Water (H2O)

%≤

1.0
Iron (Fe)

ppm≤

40
Sulphate(SO4)

ppm≤

150

This material is used as a source of B2O3 in the manufacture of many different types of borosilicate glass, including heat and chemical resistant glasses, illumination glasses, optical lenses, medical and cosmetic containers, hollow microspheres and glass beads. It has a higher bulk density and melts more rapidly than raw forms of borax. It also provides a source of sodium.

Chemical Materials

Borate ions (commonly supplied as boric acid) are used in biochemical and chemical laboratories to make buffers.

Detergent Production

Borax is used in various household laundry and cleaning products, including Boraxo powdered hand soap, and some tooth bleaching formulas.

Textile Industry

Anti-fungal compound for cellulose insulation , Mothproofing 10% solution for wool.

Water Treatment

Water system  agent to control pH.

Metal welding

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

Metallurgical Industry

In artisanal gold mining, borax is sometimes used as part of a process known as the borax method (as a flux)

Welcome to WIT-STONE
High Quality Chemical Products Factory

WIT-STONE was established in 2015 and is a professional supplier of chemical supplies. It has offices in Hong Kong and Manila, and has established long-term cooperative relationships with many world-class companies. We have a high-quality supply chain with reliable quality, stable output and affordable prices. A professional team and years of industry experience can provide you with the best solution. In supplier rating, we are rated as A-level supplier by several customers. Our company’s more than 500 containers of goods are sold all over the world every year, and we are committed to building the world’s most professional supplier of chemical supplies.We will provide you with professional services and quality products, and look forward to cooperating with you!

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We have experience in the procurement.We serve not only global companies but also small companies and individuals.

We are always looking for long-term co-operation and most of our users are repeat clients as we strive to provide careful after sales services to our users.

We welcome our clients to come to join us in visiting the suppliers factories where we source chemical products, and arranging joint visits is part of the services we provide upon request. From China, our team of professionals with both technical and sales backgrounds are here to assist you.

We strives to ensure that our providers and products are certified by leading international inspection companies including SGS and China certification Inspection Group Beijing Co.(CCIC).

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To meet the needs of customers,the company provides comprehensive quality testing and personalized customization of chemical products,promoting mutual development and progress.

Good Quality Control

Professional R&D Team

Work Efficiently

Professional Customer Service

PROFESSIONAL

QUALITY FIRST,SERVICE FIRST

To meet the needs of customers,the company provides comprehensive quality testing and personalized customization of chemical products,promoting mutual development and progress.

Good Quality Control

Professional R&D Team

Work Efficiently

Professional Customer Service

PROFESSIONAL

QUALITY FIRST,SERVICE FIRST

To meet the needs of customers,the company provides comprehensive quality testing and personalized customization of chemical products,promoting mutual development and progress.

Good Quality Control

Professional R&D Team

Work Efficiently

Professional Customer Service

Quality First Service First

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