4other chemicals:

          CMC

Soda ash

Oxalic acid

Formic acid

Caustic acid

polyacrylamide

Sodium acetate

Sodium formate

Calcium chloride

Glacial Acetic Acid

Sodium Bicarbonate  

Sodium Metabisulphite

Potassium hydroxide

Trichloroisocyanuric acid

Sodium Tripolyphosphate (STPP)

Sodium hexametaphosphate (SHMP)