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BORIC ACID CRYSTALS Extra Pure

Confirms to USP
Orthoboric acid

COAs

Packings

500 g (00500)

5000 g (05000)

25 Kg (0025K)

50 Kg (0050K)

1PW1200500 1PW1206500 1PDL00030K 1PDLP0065K
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Article No. 02218 Grade Extra Pure
Purity 99.5% CAS No. 10043-35-3
Molecular Formula H3BO3 Molecular Weight 61.83
H.S. Code 2810.0020 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

Specifications

Appearance Colorless, odorless scales of a somewhat pearly luster, or crystals Solubility Freely soluble in glycerin, in boiling water, and in boiling alcohol; soluble in water and in alcohol.
Assay (on dried basis) 99.5% - 100.5% Identification To comply USP test
Loss on drying (5hrs; over silica gel) Max 0.5% Solubility in alcohol (1 g in 10 mL of boiling alcohol) It dissolves completely
Completness of solution (1 g in 25 mL of water) It produces a clear solution

Safety Information and Hazard Symbols

Health Hazard
Symbol: GHS08
 Signal Word: Danger
 Hazardous Statement: H360FD
 Precaution Statement: P201-P202-P280-P308+P313-P405-P501
Revision Date: 10-Sep-2026

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