BORIC ACID (FOR MOLECULAR BIOLOGY)

Orthoboric acid

 
Product CodeB-00550Molecular FormulaH3BO3
Purity99.8%CAS No10043-35-3
BRANDBio-ChemMolecular Weight61.83
H.S.Code2810.00200Shelf Life60 Months

Physical Properties

Physical state at 20 °CSolidColourWhite powder
Melting point/ Freezing point [°C]160°CpH value3.8 - 4.8
Boiling point [°C]300 °CDensity [g/cm3]1.44
OdourOdorlessVapour density2.4
Vapour pressure [20°C]3.5 hPa at 20 °CSolubility 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

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