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Inorganic Acids

Boric Acid Crystals

RA000816 CAS 10043-35-3 Extra Pure

Identity

Product code
RA000816
CAS number
10043-35-3
Grade
Extra Pure
Purity
99.5%
Molecular formula
H3BO3
Molecular weight
61.83

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White crystals —
Odour Odorless —
pH value 3.8 - 4.8 —
Melting point/ Freezing point [°C] 160 °C °C
Boiling point [°C] 300 °C °C
Vapour pressure [20°C] 3.5 hPa hPa
Density [g/cm3] 1.44 g/cm3 g/cm3
Solubility in water [% weight] Soluble in water —

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit Method
Appearance White crystals — —
Arsenic (As) Max 0.001 % % —
Organic impurities To comply BP test — —
Loss on drying (5hrs; over silica gel) Max 0.5 % % —
Assay 99.5 - 100.5 % % alkalimetric
Identification To comply IP, BP, USP tests — —
Appearance of solution To comply IP, BP, USP — —
Substance insoluble in alcohol To comply IP, BP, USP test — —
pH 3.8 - 4.8 — —
Sulphate (SO4) Max 0.045 % % —
Heavy metal Max 0.0015 % % —

Packaging

Pack size SKU
25 kg RA000816-PK-25KG
500 g RA000816-PK-500G
50 kg RA000816-PK-50KG
5 kg RA000816-PK-5KG