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CHEMICALS
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SODIUM CORROSIVE INDUSTRIAL ( GRADE A )
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FORMULA
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NaOH
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Apperarance
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Colourless or coloured
liquid.
Crystal residue is accepted
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Fraction of total
mass of Sodium Hydroxide , % , not less than ( min.)
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NaOH
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46,0
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Fraction of total mass
of Soda,
% , not more than ( max.)
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Na2CO4
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0,4
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Fraction of total mass
of Sodium
Chloride , % , not more than
( max.)
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NaCl
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3,0
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Fraction of total mass
of Iron
,
% , not more than ( max.)
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Fe2O3
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0,007
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SODIUM CORROSIVE INDUSTRIAL ( GRADE B )
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FORMULA
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NaOH
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Apperarance
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Colourless or coloured
liquid.
Crystal residue is accepted
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Fraction of total
mass of Sodium Hydroxide , % , not less than ( min.)
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NaOH
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48,0
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Fraction of total mass
of Soda,
% , not more than ( max.)
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Na2CO4
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0,25
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Fraction of total mass
of Sodium
Chloride , % , not more than
( max.)
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NaCl
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0,035
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Fraction of total mass
of Iron
,
% , not more than ( max.)
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Fe2O3
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0,001
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