Borax 5 mol

$3.15 - $1,525.55
(1 review) Write a Review
Calculated at Checkout


Borax is used in many soap formulations for cleaning and to help the soap work better in hard water

Borax makes soap bars harder too. Contributes excellent cleaning to the bar, while very gentle on skin and adding alkalinity too. Borax is used a lot in laundry formulations. One of the original more modern laundry detergents.

Other product uses:

Buffering solutions;

emulsifier for waxes in creams and lotions;

cleaning ceramics and glass;

Metallurgical flux;

Corrosion inhibitor -protects metals against oxidation in all types of water treatment systems;

Used in starch adhesive systems.

White crystalline material. Somewhat soluble in cold water but easily dissolves in warm water.

Synonyms: Borax, Borax 5 mol, Borax Tetraborate, sodium tetraborate decahydrate,  sodium borate, sodium tetraborate, disodium tetraborate, sodium tetraborate pentahydrate, Na2B4O7·5H2O, sodium tetraborate decahydrate, Na2B4O7·10H2O


Product Name, CAS No., and EINECS no.

  • Product Name: Borax 5 Mol
  • CAS no: 12179-04-3
  • EINECS no.: 215-540-4


  • Appearance: White Crystal Powder
  • Odor: Nuetral
  • Molecular Weight: 291.35
  • Specific Gravity: 1.81 gr/cm^3 at 20°C
  • pH at 20°C: 9.3 (3% solution)
  • Melting Point: 200°C
  • Solubility: Soluble in water at 20°C

Use in Cosmetics and Shampoo Crafting

Borax can help soaps work better in hard water. It helps make soap bars harder while still allows the soap to be gentle on the skin. It is used in laundry detergents, creams, lotions, and other cleaners.


Keep in a cool (the cooler the better), dark and dry store-room.

Shelf Life

Under optimal storage conditions, in original unopened drums/containers, minimum two years.

1 Review Hide Reviews Show Reviews

  • 5
    Borax used to clean metals

    Posted by Unknown on Dec 2nd 2017

    Honestly have not used the borax yet. First time trying to solder jump rings and was told to use this product. Arrived quickly and safely.