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Muby Chemicals of Mubychem Group, established in 1976, is the original manufacturers of Specialty Chemicals, Pharmaceutical Excipient, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India and world wide contacts and toll manufacturers. We are exporting globally to countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai etc -- Boric Acid. | |
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Boric Acid BP USP NF IP ACS Analytical Reagent Manufacturers
Boric acid CAS Number 10043-35-3, EINECS EC Number 233-139-2 & 234-343-4, HS Code: 281000**, Molecular Weight 61.8, Chemical Formula H3BO3
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Boric Acid
Technical & Pure Crystals
Also IP BP Ph. Eur. USP ACS AR LR
Boric Acid BP
H3BO3 -- 61.8 -- 10043-35-3
Boric Acid BP
DEFINITION
Boric acid contains not less than 99.0 per cent and not more than the equivalent of 100.5 percent of H3BO3.
CHARACTERS
A white, crystalline powder, colourless, shiny plates greasy to the touch, or white crystals, soluble in water and in alcohol, freely soluble in boiling water and
in glycerol (85 per cent).
IDENTIFICATION
A. Dissolve 0.1 g by gently heating in 5 ml of methanol, add 0.1 ml of sulphuric acid and ignite the solution. The flame has a green border.
B. Solution S (see Tests) is acid.
TESTS
Solution S
Dissolve 3.3 g in 80 ml of boiling distilled water, cool and dilute to 100 ml with carbon dioxide-free water prepared from distilled water.
Appearance of solution
Solution S is clear and colourless.
pH
The pH of solution S is 3.8 to 4.8.
Solubility in alcohol
Dissolve 1.0 g in 10 ml of boiling alcohol. The solution is not more opalescent than reference suspension and is colourless.
Organic matter
It does not darken on progressive heating to dull redness.
Sulphates
10 ml of solution S diluted to 15 ml with distilled water complies with the limit test for sulphates (450 ppm).
Heavy metals
12 ml of solution S complies with limit test A for heavy metals (15 ppm).
Boric Acid USP NF
H3BO3 -- 61.83
Boric acid USP-NF (H3BO3) [10043-35-3].
Boric Acid contains not less than 99.5 percent and not more than 100.5 percent of H3BO3, calculated on the dried basis.
Solubility in alcohol— One g dissolves completely in 10 mL of boiling alcohol.
Completeness of solution— One g dissolves in 25 mL of water, producing a clear solution.
Identification— It responds to the tests for Borate.
Loss on drying— Dry it over silica gel for 5 hours: it loses not more than 0.5% of its weight.
Heavy metals— Dissolve 1 g in 23 mL of water, and add 2 mL of 1 N acetic acid: the limit is 0.002%.
ACS Specifications
American Chemical Society
Boric Acid ACS Analytical Reagent
H3BO3
Formula Wt 61.83
CAS Number 10043-35-3
REQUIREMENTS
Assay: 99.5% H3BO3
MAXIMUM ALLOWABLE
Insoluble in methanol .......... 0.005%
Nonvolatile with methanol ... 0.05%
Chloride (Cl) ...................... 0.001%
Phosphate (PO4) ................ 0.001%
Sulfate (SO4) ..................... 0.01%
Calcium (Ca) ..................... 0.005%
Heavy metals (as Pb) ......... 0.001%
Iron (Fe) ........................... 0.001%
Boric Acid IP BP USP NF ACS Manufacturers:
MUBY CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950; FAX: 91-22-23728264
e-mail: info@mubychem.com
USA & Canadian Customers may
e-mail: usa@mubychem.com
Call 773-829-5811
Copyright and Usual Disclaimer
is Applicable.
Last updated:
29 April, 2013.
Exporters to USA Canada UAE Europe South Africa Tanzania Kenya Uganda Egypt Nigeria Turkey Mexico Brazil Argentina Chile Dubai etc.
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Boric Acid USP NF -- Boric Acid BP -- Boric Acid IP -- Boric Acid ACS