Home > Pallav Chemicals > Acids-Inorganic > Boric Acid (Powder) 99.5% Extrapure

Boric Acid (Powder) 99.5% Extrapure
Orthoboric Acid

Product Code.
00452
Grade
Extrapure
Purity
99.5%
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 crystals
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 dried 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