SPECIFICATION OF PHOSPHORIC ACID - Tech Grade
 
DESCRIPTION : Clear, Colourless and Odourless syrupy liquid
 
 
Characteristic SCL Specification Result Method
Orthophosphoric acid H3PO4' w/w min 86.0 86.30 IS-798-1986 (Method A)
       
P2O5' % w/w, min 62.3 62.50 *
       
Specific gravity at 20 C min. 1.700 1.7039 Sp.Gr. Bottle
       
Iron as Fe, ppm, max 10.0 2.90 (A-4)
       
Calcium as Ca, ppm, max 80.0 2.90 AAS
       
Magnessium as Mg, ppm, max 5.0 1.85 AAS
       
Heavy metals as Pb, ppm, max 10.0 10 (A-10)
       
Chloride as Cl, ppm, max 20.0 12.0 (A-5)
       
Flouride as F, ppm, max 100.0 79.0 lon Selective electrode
       
Sulphate as SO4, ppm, max 300.0 151.0 (A-6.2)
 
 
 

 
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