Borax BP Sodium Borate USP NF ACS IP Manufacturers, Na2B4O7 |
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USP-NF BP ACS IP
MSDS of Borax Sodium Borate BP USP NF IP ACS FCC Grade Manufacturers
Borax
Technical & Pure Crystals, Sodium Borate
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Borax BP
Sodium Borate; Sodium Tetraborate
Na2B4O7,10H2O -- 381.4 -- 1303-96-4
DEFINITION
Borax contains not less than 99.0 per cent and not more than the equivalent
of 103.0 per cent of disodium tetraborate decahydrate.
CHARACTERS
A white, crystalline powder, colourless crystals or crystalline masses,
efflorescent, soluble in water, very soluble in boiling water, freely soluble in
glycerol.
IDENTIFICATION
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.
TESTS
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.
pH
The pH of solution S is 9.0 to 9.6.
Sulphates
15 ml of solution S complies with the limit test for sulphates (50 ppm).
Ammonium
6 ml of solution S diluted to 14 ml with water complies with the
limit test for ammonium (10 ppm).
Arsenic
5 ml of solution S complies with limit test A for arsenic (5 ppm).
Calcium
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
Borax USP NF
Na2B4O7·10H2O 381.37
Borax
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
Sodium Tetraborate Decahydrate ACS
Na2B4O7 . 10H2O
Formula Wt 381.37
CAS Number 1303-96-4
REQUIREMENTS
Assay: 99.5-105.0% Na2B4O7 .
10H2O
pH of a 0.01 M solution: 9.15-9.20 at 25C
MAXIMUM ALLOWABLE
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
Borax BP
Sodium Borate USP NF ACS
Manufacturers
or
Sodium Tetraborate or Sodium Borate
Manufacturers:
Muby Chem Ltd.
Toll manufacturing & Warehouse at Houston & Midland, Texas, USA and India
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Call 1-844-682-9243
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