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Corrosion Inhibition Industry Borax Decahydrate Powder 381.37 Molecular Weight

Corrosion Inhibition Industry Borax Decahydrate Powder 381.37 Molecular Weight

    • Corrosion Inhibition Industry Borax Decahydrate Powder 381.37 Molecular Weight
  • Corrosion Inhibition Industry Borax Decahydrate Powder 381.37 Molecular Weight

    Product Details:

    Place of Origin: CHINA
    Brand Name: YIXIN
    Certification: ISO9001
    Model Number: YXB-001

    Payment & Shipping Terms:

    Minimum Order Quantity: Negotiable
    Price: USD580-800/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
    Contact Now
    Detailed Product Description
    Other Name: Sodium Borate CAS NO: 1303-96-4
    Molecular Weight: 381.37 HS CODE: 2840190000
    Density: 1.69-1.72 G/m3 Properities: Powder
    High Light:

    sodium tetraborate decahydrate


    sodium borate decahydrate

    Uses of 95% sodium tetraborate powder is metallurgical fluxes

    corrosion inhibition and adhesives


     ►Product description


    Borax, also known as sodium borate, sodium tetraborate, or disodium tetraborate,


    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. A


    number of closely related minerals or chemical compounds that differ in their crystal


    water content are referred to as borax, but the word is usually used to refer to the


    decahydrate. Commercially sold borax is partially dehydrated.


    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




    In artisanal gold mining, the borax method is sometimes used as a substitute for


    toxic mercury in the gold extraction process. Borax was reportedly used by gold


    miners in parts of the Philippines in the 1900s.


    Borax 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 into common


    use in the late 19th century when Francis Marion Smith's Pacific Coast Borax


    Company began to market and popularize a large variety of applications .




    ► Chemistry


    The structure of the anion [B4O5(OH)4]2− in borax


    The term borax is often used for a number of closely related minerals or chemical


    compounds that differ in their crystal water content:


    · anhydrous sodium tetraborate, Na2B4O7


    · sodium tetraborate pentahydrate, Na2B4O7·5H2O


    · setraborate decahydrate, Na2B4O7·10H2O


    Borax is generally described as Na2B4O7·10H2O. However, it is better formulated


    as Na2[B4O5(OH)4]·8H2O, since borax contains the [B4O5(OH)4]2− ion. In this


    structure, there are two four-coordinate boron atoms (two BO4 tetrahedra) and two


    three-coordinate boron atoms (two BO3 triangles).


    Borax is also easily converted to boric acid and other borates, which have many


    applications. Its reaction with hydrochloric acid to form boric acid is:


    Na2B4O7·10H2O + 2 HCl → 4 H3BO3 + 2 NaCl + 5 H2O


    The "decahydrate" is sufficiently stable to find use as a primary standard for acid


    base titrimetry.


    When borax is added to a flame, it produces a yellow green color.Borax is not used


    for this purpose in fireworks due to the overwhelming yellow color of sodium. Boric


    acid is used to color methanol flames a transparent green.




    ►Details  of borax 



    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. 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




    Product name

    sodium tetraborate

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








     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%






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


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


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


    to form compounds of lower pH. The relatively constant pH of Borax Decahydrate


    solutions makes it an excellent buffering agent.




    1. Metallurgical fluxes

    The ability of Borax Decahydrate to dissolve metal oxides is exploited in the


    recovery of metals such as brass, copper, lead and zinc from scrap or smelting




    In ferrous metallurgy, Borax Decahydrate is used as a cover flux to prevent


    oxidation at the surface of the molten ingot. In welding, brazing, and soldering,


    Borax Decahydrate covers the metal surfaces, excluding air and preventing


    oxidation. It also acts as a solvent and cleaning agent.



    2. Corrosion inhibition


    Borax Decahydrate is incorporated in many aqueous systems requiring corrosion


    inhibition. It protects ferrous metals against oxidation and finds use in the


    manufacture of automotive and engine coolant formulations, and various water


    treatment chemicals.The high solubility of Borax Decahydrate in ethylene glycol


    makes it especially useful in car antifreeze formulations. Borax Decahydrate


    neutralizes the acidic residue resulting from the decomposition of ethylene glycol


    and minimizes the rate of oxidation at the surface of the metal. Aqueous solutions


    of Borax Decahydrate have replaced chromates in railroad and other diesel engine






    3. Adhesives


    Borax Decahydrate is part of the starch adhesive formulation for corrugated paper


    and paperboard, and is a peptizing agent in the manufacture of casein-based and


    dextrin-based adhesives. It greatly improves the tack and green strength of the


    adhesive by crosslinking conjugated hydroxyl groups.


    Corrosion Inhibition Industry Borax Decahydrate Powder 381.37 Molecular Weight 0


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