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Function: require_once
Boric Acid (For Molecular Biology)
Orthoboric acid
Product Code. |
00454 |
Grade |
|
Purity |
99.8% |
CAS No. |
10043-35-3 |
Molecular Formula |
H3BO3 |
Molecular Weight |
61.83 |
H.S.Code |
2810.00200 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White powder |
Odour |
Odorless |
| pH value |
3.8 - 4.8 |
Melting point/ Freezing point [°C] |
160 °C |
Boiling point [°C] |
300 °C |
| Vapour pressure [20°C] |
3.5 hPa at 20 °C |
Density [g/cm3] |
1.44 |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | White powder |
| Assay (alkalimetric; on anhydrous basis) | 99.5-100.5% |
| Identification | To comply IP, BP, USP tests |
| Solubility | Soluble in water and in ethanol (96 per cent), freely soluble in boiling water and in glycerol (85 per cent) |
| Appearance of solution | To comply IP, BP, USP |
| Substance insoluble in alcohol | To comply IP, BP, USP test |
| pH (3.3% solution in water) | 3.8 - 4.8 |
| Sulphate (SO4) | Max 0.045% |
| Heavy metal (as Pb) | max 0.0015% |
| Arsenic (As) | Max 0.001% |
| Organic impurities | To comply BP test |
| Loss on drying (5hrs; over silica gel) | Max 0.5% |
Safety Information and Hazard Symbols
Symbol: GHS08
Signal Word: Danger
Hazardous Statement: H360
Precaution Statement: P201-P308 + P313