BORIC ACID CRYSTALS
BORIC ACID CRYSTALS Extra Pure
Confirms to IP, BP, USP
Short Name: BORIC ACID CRYSTALS
Synonym: Orthoboric Acid
Basic Details
Article No.
LG0779
Grade
Extra Pure
Purity
99.5%
CAS No.
10043-35-3
HS Code
2810.0020
Shelf Life
60 Months
Packings Avialable
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
Chemical Specifications
Appearance
White crystals
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 & Hazard Symbols
Symbol
GHS08
Signal Word
Danger
Hazardous Statement
H360
Precaution Statement
P201-P308 + P313