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Boric acid, also called orthoboric acid, and trioxoboric acid (III) is a chemical compound used as an antiseptic, insecticide, flame retardant and precursor of other chemical compounds. It is commonly used for pH regulation and as a component in foliar fertilisers.
IDENTIFICATION AND PROPERTIES BORIC ACID
Name: Boric acid
Synonyms: Orthoboric acid, Boractic acid
CAS: 10043-35-3
EC: 233-139-2
- Appearance (20ºC,1013 hPa): white crystalline solid (granular powder)
- Odour: Odourless
- pH (20ºC): 6.1 (solution at 0.1%) 5.1 (solution at 1.0%) 3.7 (solution at 4.7%)
- Melting point. >1000ºC
- Flash point: Non-flammable
- Flammability (solid/gas): Non-flammable
- Vapour pressure (20ºC): Negligible
- Relative density (20ºC). 1.51 g/cm3
- Solubility in water (20ºC): 4.7%
- Solubility in water (100ºC): 27.5%
- Partition coefficient n-octanol/water (Log Pow) (22ºC): -1.09
- Auto-ignition temperature: Not self-igniting
- Decomposition temperature: 169 +/- 1ºC HBO2 form
- Viscosity: Not applicable to solids
- Explosive properties: Non-explosive
- Oxidising properties: Non-combustive
USES
- Industrial ceramics manufacture
- Cosmetics
- Detergents
- Borosilicate glasses
- Textile fibreglass
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