BORIC ACID POWDER Extra Pure

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Category: Acids-Inorganic

Description
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Description

(Confirms to IP, BP, USP)
Orthoboric acid

Article No.	02219	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

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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

Specifications

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%

Packings

500 g	00500
1000 g	01000
5000 g	05000
25 Kg	0025K
50 Kg	0050K

Safety Information

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

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