CORROSION-RESISTANT PUMPS AND MIXERS

CHEMICAL RESISTANCE TABLE

CHEMICAL COMPATIBILITY OF MATERIALS ACCORDING TO THE CORROSIVE LIQUID PUMPED

Savino Barbera horizontal pumps with no metal parts in contact with the liquid

Purely by way of example, the following chemical compatibility table lists only some of the corrosive liquids that come into most frequent contact with our corrosion-resistant equipment. Remember that particular conditions of use, the simultaneous presence of different chemical agents or other unforeseen environmental factors can significantly alter the chemical resistance of the plastic construction material. So always pay attention to certain chemical-physical properties that may make incompatible some harsh chemicals.

CHEMICAL RESISTANCE TABLE

Fluid	Formula	Temp.	PP max concentration	PVC max concentration	PVDF max concentration
Acetic acid	CH₃COOH	20 °C	all	80 %	all
		40 °C	60 %	10 %	60 %
		60 °C	10 %	-	60 %
		90 °C	-	-	-
Aluminum sulphate (sol.)	AI₂(SO₄)₃	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Ammonia (sol) Ammonium hydroxide	NH₄OH	20 °C	all	all	25 %
		40 °C	all	-	3 %
		60 °C	all	-	-
		90 °C	-	-	-
Brine	-	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Calcium chloride (sol.)	CaCl₂	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	-
Citric acid	C₆H₈O₇	20 °C	50%	50 %	50 %
		40 °C	50 %	50 %	50 %
		60 °C	50 %	-	50 %
		90 °C	-	-	50%
Copper chloride (sol.)	CuCI₂	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Copper sulphate (sol.)	CuSO₄	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Cromic acid	H₂CrO₄	20 °C	-	50 %	50 %
		40 °C	-	50 %	50 %
		60 °C	-	-	50 %
		90 °C	-	-	-
Detergents	-	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Ethylene glycol	C₂H₆O₂	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Ferric chloride (sol.)	FeCI₃	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Fertilizers Salts (sol.)	-	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Formaldehyde Formic aldehyde	CH₂O	20 °C	37 %	37 %	37 %
		40 °C	37 %	37 %	37 %
		60 °C	37 %	-	37 %
		90 °C	-	-	37 %
Glycerin Glycerol	C₃H₈O₃	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Hydrochloric acid	HCI	20 °C	30 %	36 %	36 %
		40 °C	30 %	36 %	36 %
		60 °C	5 %	-	36 %
		90 °C	-	-	36 %
Hydrofluoric acid	HF	20 °C	70 %	10 %	70 %
		40 °C	-	10 %	70 %
		60 °C	-	-	70 %
		90 °C	-	-	70 %
Hydrogen peroxide	H₂O₂	20 °C	10 %	10 %	50 %
		40 °C	10 %	10 %	30 %
		60 °C	10 %	-	10 %
		90 °C	-	-	-
Nitrates (calcium, ferric, potassium, sodium...)	-	20 °C	all	all	all
		40 °C	all	-	all
		60 °C	all	-	all
		90 °C	-	-	all
Nitric acid	HNO₃	20 °C	20 %	40 %	85 %
		40 °C	-	40 %	85 %
		60 °C	-	-	70 %
		90 °C	-	-	40 %
Phosphoric acid	H₃PO₄	20 °C	85 %	85 %	85 %
		40 °C	85 %	85 %	85 %
		60 °C	85 %	-	85 %
		90 °C	-	-	85 %
Propylene glycol	C₃H₈O₂	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Seawater, salty water	-	20 °C	tutte	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Sodium bisulphite (sol.)	NaHSO₃	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all
Sodium hydroxide (sol.) Caustic soda (sol)	NaOH	20 °C	50 %	50 %	-
		40 °C	50 %	50 %	-
		60 °C	30 %	30 %	-
		90 °C	-	-	-
Sodium hypochlorite (NaOH-stabilized)	NaOCI	20 °C	3 %	12,5 %	-
		40 °C	-	12,5 %	-
		60 °C	-	-	-
		90 °C	-	-	-
Sulfuric acid	H₂SO₄	20 °C	80 %	96 %	98 %
		40 °C	80 %	80 %	98 %
		60 °C	10 %	-	96 %
		90 °C	-	10 %	90 %
Zinc sulphate (sol.)	ZnSO₄	20 °C	all	all	all
		40 °C	all	all	all
		60 °C	all	-	all
		90 °C	-	-	all

The choice of construction materials always depends on the liquid properties: concentration, temperature, specific gravity, presence of solids, fluids combination. This chemical resistance chart is for general reference only and provides guidance to an initial selection of thermoplastic equipment, such our pumps and mixers. This information simply describe the suitability of plastic materials for use in contact with various chemicals. The recommendations presented in this table are based on published data, information from raw material suppliers and field experience. Furthermore, this chemical compatibility guide refers to pure and non-regenerated plastic materials and should be considered as a general guide rather than a substitute for contacting Savino Barbera for specific recommendations. Savino Barbera does not unconditionally guarantee that this chart is complete: any special or unusual factors should be taken into consideration. So, it is strongly recommended to consult Savino Barbera when specific applications are being considered. Improper selection or use of thermoplastics described herein can cause personal injury or product damage.