Diaphragm some corrosion on the choice of materials

Edit: Click: 1080 Date: 2011-07-22

Diaphragm some corrosion on the choice of materials

Corrosive media	Corrosion-resistant materials
Corrosive media	Tin bronze (QSn6.5-0.4)	SUS316	Pure tantalum (Ta)	Monel (Ni70Cu30)	Harrington combined (HC)	PTFE (F4)
Sulfuric acid (H2SO4)	V	△	○	V	V	V
Nitric acid (HNO3)	╳	V	○	╳	V	V
Hydrochloric acid (HCI)	△	╳	○	╳	V	V
Phosphoric acid (H3PO4)	V	V	○	V	V	V
Acetic acid (CH3COOH)	V	V	○	V	○	V
Caustic soda (NaOH)	△	○	△	○	○	V
Soda ash (Na2CO3)	○	○	○	○	V	V
Baking soda (NaHCO3)	V	○	○	○	○	V
Chlorine (CI)	Dry: V Wet: ╳	Dry: V Wet: ╳	○	Dry: V Wet: ╳	V	V
Bromine (Br2)	Dry: △ Wet: ╳	Dry: ╳ Wet: △	○	Dry: ○ Wet: ╳	○	V
Ammonia (NH3)	╳	V	╳	╳	○	V
Water (30% NaCI)	V	V	○	○	○	V
Symbols: ○ - the best; △ - conditional use; V - can be used; ╳ - can not be used.

The company’s choice of material for the general SUS316-0Cr17Ni12m, more corrosion resistant material selection for the normal temperature, corrosion resistance in special circumstances, the choice of materials refer to the specific inquiry. _addload(function(){_setupIW();_csi(’zh-CN’,’en’,’Untitled-2.html’);});

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