Pumped liquids

Pumped liquid 20ºC Concen- tration % Materials Pump housing Gasket Ball PP PVDF Stainl. steel 1.4401 PVC FKM EPDM CSM PTFE Centellen C Ceramic Glass Acetic acid CH3COOH 25 -     60 - -     85 - - - - Aluminium cloride AlCl3 40 - Aluminium sulphate Al2(SO4)3 60 Ammonia, aqueous NH4OH 28 - - Calcium hydroxide *7 Ca(OH)2   - Calcium hypochlorite Ca(OCl)2 20 - Chromic acid *5 H2CrO4 10     30 - -     40 - - -     50 - - - Copper sulphate CuSO4 30 Ferric chloride*3 FeCl3 100 - Ferric sulphate*3 Fe2(SO4)3 100 Ferrous chloride FeCl2 100 - Ferrous sulphate FeSO4 50 Hydrochloric acid HCl <25 - 25-37 - - - Hydrogen peroxide H2O2 30 Nitric acid HNO3 10     30 -     40 - -     70 - - - - - Peracetic acid CH3COOOH 5 - - Potassium hydroxide KOH 50 - - - Potassium permanganate KMnO4 10 - Sodium chlorate NaClO3 30   Sodium chloride NaCl   - Sodium chlorite NaClO2 20 - - Sodium hydroxide NaOH 20 -     30 - -     50 - - Sodium hypochlorite NaOCl 20 - Sodium sulphide Na2S 30 - Sodium sulphite *6 Na2SO3 20 - Sulphurous acid H2SO3 6 Sulphuric acid*4 H2SO4 <80 -     80-98 - - - - -  Suitable  Limited - Not suitable *1 DMM only *2 DME, DMS only *3 Risk of crystallisation *4 Reacts violently with water and generates much heat. (Pumps should be absolutely dry before dosing sulphuric acid). *5 Must be fluoride-free when glass balls are used. *6 In neutral solutions. *7 Saturated solution 0.1%.