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Borax

Borax
Details:
Synonyms: Sodium Borate, Sodium Tetraborate, Disodium Tetraborate, E285
Chemical Formula: Na2B4O7.xH2O
CAS Number: 1330-43-4 (anhydrous), 1303-96-4 (decahydrate), 12179-04-3 (pentahydrate)
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Description
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SDS

Shanghai Dingwujin Chemical Co., Ltd. is one of the leading manufacturers and suppliers of borax in China. We are committed to the chemical distribution across Central & Eastern Europe and Ukraine. We warmly welcome you to wholesale customized borax made in China here from our factory.

 

Borax

Introduction

Borax is an inorganic compound that commonly appears as white or colorless crystals, and is also often found in the form of amorphous powder. It has a slightly sweet and salty taste, and is soluble in water and glycerol. When exposed to dry air, it tends to slowly lose its water of crystallization and gradually effloresce into a white powder.

Characteristics

Molar Weight

381.38 g/mol (decahydrate)

Melting Point

75°C (decahydrate), 742°C (anhydrous)

Boiling Point

1575°C (anhydrous, decomposes)

Density

1.72 g/cm³ (decahydrate), 1.815 g/cm³ (pentahydrate)

Forms

Powder, White, Solid

Product Grades

Industrial Grade

● Premium Grade: Main content ≥ 99.5%; water-insoluble matter ≤ 0.04%; iron ≤ 0.002%

● First Grade: Main content ≥ 95.0%; water-insoluble matter ≤ 0.04%; iron ≤ 0.005%

 

Agricultural Grade

Sodium Tetraborate Decahydrate (Na₂B₄O₇·10H₂O): Main content≥95%; Boron (B) content equivalent: approx. 11%; Application: Used as a base fertilizer to supplement available boron in soil. Suitable for boron-demanding crops such as rapeseed (canola), cotton, fruit trees, and vegetables.

Reagent Grade

Purity is generally not less than 99.0% or 99.5%. For precision laboratory analysis and chemical synthesis applications, analytical grade (AR) or high-purity anhydrous sodium tetraborate (borax) is typically employed.

Standard stock items are industrial grade. For special-grade orders, please contact us for full documentation. 

Uses and Applications

Key applications

  • Buffer Agent
  • Disinfectant
  • Welding
  • Food Additive
  • Agricultural
  • Pharmaceuticals
  • Personal Care

Industries

Borax Used in the Ceramic Industry

Borax is a key flux in the manufacture of enamel glazes and porcelain enamels, reducing melting temperature while improving transparency and gloss.

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Borax Used in the Metallurgical Industry

In metallurgy, it acts as a flux for soldering non-ferrous metals, cleaning away surface oxides.

Borax Used in the Agriculture Industry

Borax serves as a micronutrient fertilizer or be formulated with other ingredients to produce acaricides (miticides), though concentrations must be strictly controlled to avoid phytotoxicity.

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Borax Used in Pest Control and Prevention

Low-concentration solutions can be used to control pests such as cockroaches and termites by disrupting their exoskeletons.

Borax Used in the Laboratory

In the laboratory, it is used as a component of buffer solutions or as a primary standard substance.

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As a China-based chemical distributor and supplier, 7DCHEM supplies a full range of industrial chemicals with complete SDS and COA documentation. Supported by our dual-warehouse facility in Poland, we serve the following markets: Ukraine, Poland, Czech Republic, Slovakia, Hungary, Romania, Bulgaria, Croatia, Slovenia, Estonia, Latvia, Lithuania, Serbia, Bosnia and Herzegovina, Montenegro, Albania, North Macedonia, Moldova.

For country-specific import regulations, local compliance requirements and delivery lead-times, please visit ourChina-Poland dual-warehouse linkage page.

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