Borax

Borax
1	Formula ----------------------- Molecular Weight	-------------------------------------------------------------------------------------                                              =  201.2                                              =  381.87
2	Synonym	Sodium Borate , Sodium Tetraborate
3	Physical Property	Physical state Colourless crystals , Crystalline masses or white crystalline powder  Colour Colourless crystals or white crystalline powder Odour Odourless Taste Solubility Soluble in water ( 1 in 20 ) ,  boiling water ( 1 in 1 ) , and glycerol ( 1 in 1 ) . Melting Point 75*c pH 9.5 Extra features i)                    It oses 5 moles of water at 100*c and 9 moles of water 150*c and become anhydrous at 320*c . ii)                   The aquous solution is alkaline to litmus and phenoplpthalein .
4	Chemical Property
5	Incompatibility	It is incompatible with gums , alkaloidal salts , zinc sulphate , mineral acids and metallic salts .
6	Uses	i)                    It is used as pharmaceutical aid ii)                   It is used as antiseptic . iii)                 It is used as detergent. iv)                 It is used as astringent for mucous membrane  . v)                  It is used externally in 1 1 to 2% solution as an eye wash and as a wet dressing for wounds
7	Side Effect	Ingestion of Borax can cause severe vomiting , diarrhoea , shock and death
8	Storage	It is stored in a cool place in airtight container