Boric Acid (Crystal)
Orthoboric Acid

Product Code.
00455
Grade
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 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/crystals/crystalline powder
Assay (acidimetric)
Min 99.5%
DNases (exo and endonucleases)
None detected
Insoluble matter
Passes filter test
Non volatile substances in MeOH/HCl
Max 0.05%
Phosphatase
None detected
RNases
None detected
Loss on drying (at 120°C)
Max 0.5%
Solubility (1 M in water)
Complete,colorless
pH (saturated solution in water)
3.6 - 4.6
Chloride (Cl)
Max 0.0005%
Phosphate (PO4)
Max 0.0005%
Sulphate (SO4)
Max 0.0005%
Heavy metal (as Pb)
Max 0.0005%
Arsenic (As)
Max 0.00005%
Sodium (Na)
Max 0.005%
UV absorbance 1 M in water
Wavelength
Absorption Max.
260 nm
0.015
280 nm
0.010

Safety Information and Hazard Symbols

Symbol: GHS08
Signal Word: Danger
Hazardous Statement: H360
Precaution Statement: P201-P308 + P313