Chemical resistance of NIROSTA steels - Rovasta
Chemical resistance of NIROSTA steels - Rovasta
Chemical resistance of NIROSTA steels - Rovasta
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<strong>Chemical</strong> <strong>resistance</strong> <strong>of</strong> <strong>NIROSTA</strong> ® <strong>steels</strong><br />
16<br />
Corrosive agent Formula Condition Concentration<br />
Dichloroethylene 1 ) CHClCHCl anhydrous<br />
Disulphur dichloride 1 ) S 2 Cl 2 anhydrous<br />
Disulphur dichloride 1 ) S 2 Cl 2 anhydrous<br />
Dripping<br />
Dye bath (alkaline or neutral)<br />
Dye bath (organic acid)<br />
Dye bath (organic acid)<br />
Dye bath (strong sulphuric acid or organic +<br />
strong sulphuric acid) (H 2 SO 4 more than 1%)<br />
Dye bath (strong sulphuric acid or organic +<br />
strong sulphuric acid) (H 2 SO 4 more than 1%)<br />
Dye bath (weak sulphuric acid or organic +<br />
sulphuric acid) (H 2 SO 4 less than 1%)<br />
Dye bath (weak sulphuric acid or organic +<br />
sulphuric acid) (H 2 SO 4 less than 1%)<br />
Epsom salts<br />
see magnesium sulphate<br />
Ethyl chloride 1 ) C 2 H 5 Cl anhydrous<br />
Ethyl ether<br />
(C 2 H 5 ) 2 O<br />
Ethyl glycol<br />
CH 2 OHCH 2 OH<br />
Ethylalcohol (spirit) C 2 H 5 OH all concentrations<br />
Ethylene chloride<br />
see dichloroethane<br />
Fatty acid (oleic acid) + traces <strong>of</strong> H 2 SO 4 C 17 H 33 COOH<br />
Fatty acid (oleic acid) C 17 H 33 COOH 30 bar technical<br />
Fatty acid (oleic acid) C 17 H 33 COOH 30 bar technical<br />
Fatty acid (oleic acid) C 17 H 33 COOH 30 bar technical<br />
Fatty acid (oleic acid) C 17 H 33 COOH 30 bar technical<br />
Ferric chloride FeCl 3 30 %<br />
Ferric chloride FeCl 3 50 %<br />
Ferric nitrate Fe(NO 3 ) 3 · 9H 2 O all concentrations<br />
Ferric sulphate 2 ) Fe 2 (SO 4 ) 3 10 %<br />
Ferric sulphate 2 ) Fe 2 (SO 4 ) 3 10 %<br />
Ferrous sulphate FeSO 4 · 7H 2 O all concentrations<br />
Fixing salt<br />
see photographic fixing bath<br />
Fluosilicic acid H 2 SiF 6 vapours<br />
Formaldehyde (formalin = methyl aldehyde) HCHO 40 %<br />
Formic acid HCOOH 10 %<br />
Formic acid HCOOH 10 %<br />
Formic acid HCOOH 10 %<br />
Formic acid HCOOH 50 %<br />
Formic acid HCOOH 50 %<br />
Formic acid HCOOH 50 %<br />
1<br />
) Even if only traces <strong>of</strong> hydrochloric acid (HCI) are formed by moisture, there is a danger <strong>of</strong> pitting, crevice and stress corrosion cracking.<br />
2<br />
) Can sometimes prevent austenitic chrome-nickel <strong>steels</strong> from being attacked by sulphuric acid.
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