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Borax; Sodium Borate

Muby Chemicals established in the year 1976, is pioneer in Manufacturing Chemicals for Oil and Gas Exploration, Hydraulic Fracturing (Fracking) and coiled tube Chemicals.Our advanced chemistry leading to an innovative and high-performance product range is coupled with effective on and off site management services.

We are manufacturer of Specialty chemicals, Pharmaceutical Excipients, Fragrance & Flavorchemicals in India, which are of IP, BP, USP, Ph. Eur., FCC or Food Grade, ACS, AR or Analytical Reagent Grade, LR or Laboratory Reagent Grade, Pure and Technical Grades of various chemicals.


Borax BP

Borax BP; Sodium Borate; Sodium Tetraborate
Na2B4O7,10H2O — 381.4 — 1303-96-4

Borax contains not less than 99.0 per cent and not more than the equivalent of 103.0  per cent of disodium tetraborate decahydrate.

A white, crystalline powder, colourless crystals or crystalline masses, efflorescent, soluble in water, very soluble in boiling water, freely soluble in glycerol.

A. To 1 ml of solution S (see Tests) add 0.1 ml of sulphuric acid and 5 ml of methanol \ and ignite. The flame has a green border.
B. To 5 ml of solution S add 0.1 ml of phenolphthalein solution. The solution is red. On the addition of 5 ml of glycerol (85 per cent) the colour disappears.
C. Solution S gives the reactions of sodium.

Solution S
Dissolve 4.0 g in carbon dioxide-free water prepared from distilled water and  dilute to 100 ml with the same solvent.
Appearance of solution
Solution S is clear and colourless.
The pH of solution S is 9.0 to 9.6.
15 ml of solution S complies with the limit test for sulphates (50 ppm).
6 ml of solution S diluted to 14 ml with water complies with the limit test for  ammonium (10 ppm).
5 ml of solution S complies with limit test A for arsenic (5 ppm).
15 ml of solution S complies with the limit test for calcium (100 ppm).
Heavy metals
12 ml of solution S complies with limit test A for heavy metals (25 ppm).

Sodium Borate USP NF

Sodium Borate USP-NF; Borax USP NF
Na2B4O7-10H2O 381.37
Borax [1303-96-4]
Anhydrous 201.22 [1330-43-4]

Sodium Borate contains an amount of Na2B4O7 equivalent to not less than 99.0 percent and not more than 105.0 percent of Na2B4O7·10H2O.

Identification— A solution (1 in 20) responds to the tests for Sodium and for Borate.
Carbonate and bicarbonate— To 5 mL of a solution (1 in 20), contained in a test tube, add 1 mL of 3 N hydrochloric acid: no effervescence is observed.
Heavy metals— the limit is 0.002%.

Sodium Borate Decahydrate or Borax ACS Analytical Reagent

Sodium Tetraborate Decahydrate ACS
Na2B4O7 -10H2O
Formula Wt 381.37
CAS Number 1303-96-4

Assay: 99.5-105.0% Na2B4O7-10H2O
pH of a 0.01 M solution: 9.15-9.20 at 25C

Insoluble matter ……….. 0.005%
Chloride (Cl) …………… 0.001%
Phosphate (PO4) ……… 0.001%
Sulfate (SO4) ………….. 0.005%
Calcium (Ca) …………… 0.005%
Heavy metals (as Pb) … 0.001%
Iron (Fe) ………………… 5 ppm