Product Details :
Product Name | : BORIC ACID |
C.A.S. No. | : 10043-35-3 |
Molecular Formula | : H3BO3 |
Molecular Weight | : 61.83 |
SPECIFICATION | IP | BP | USP |
Description | White, Crystalline powder or colorless shiny plates, unctuous to the touch or white crystals, odorless | White or almost white, crystalline powder, colorless, shiny plates greasy to the touch, or white or almost white crystals. | White or almost white, crystalline powder, colorless, shiny plates greasy to the touch, or white or almost white crystals. |
Solubility | - | Soluble in water and in ethanol (96 %), freely soluble in boiling water and in glycerol ( 85 %). | - |
Appearance of solution (10% w/v solution) | 3.5 % w/v solution in boiling water is clear and colorless. | 3.3 % w/v solution is clear and color less. | - |
Identification
| A: The flame has a green border. B: 3.3 %w/v the solution is faintly acid. | A: The flame has green border. B: 3.3 % w/v solution is acidic.
| It responds to the tests for borate |
Ph ( 3.3 % w/v solution) | 3.8-4.8 | 3.8 4.8 | - |
Solubility in ethanol (96% ) | The solution is not more opalescent than opalescence standard OS2 and colorless | The solution has not more opalescent than reference suspension II and colorless. | - |
Organic matter | - | It does not darken on progressive heating to dull redness | - |
Sulphates | NMT 450 ppm | NMT 450 ppm | - |
Arsenic | NMT 10 ppm | - | - |
Heavy metal | NMT 20 ppm | - | NMT 20 ppm |
Loss on drying | NMT 0.5 % | - | NMT 0.5 % |
Residual solvents |
|
| Meets the requirements |
Assay | 99.5 % to 100.5 % ( on dry basis) | 99.0 % - 100.5 % | 99.5 % to 100.5% (on dry basis ) |
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