KROHNE OPTIMASS Sensors Corrosion guidelines EN User Manual
Page 12
12
Corrosion Guide Rev 1.05 Jan 2006
Chem. Formula
Fluid
Concentration
Stainless Steel
Max
o
F/
o
C
Hastelloy C-22
Max
o
F/
o
C
Titanium
Max
o
F/
o
C
FeCl3
Ferric Chloride
100%
X
X
248/120
FeSO4
Ferrous Sulphate
100%
X
X
248/120
H
Hydrogen gas
H2O2
Hydrogen Peroxide
50%
194/90
194/90
X
H2O2
Hydrogen Peroxide
90%
118/48
118/48
X
H2SiF6
Fluosilicic Acid
any
X
X
X
H2SO3
Sulphurous Acid
10%
X
X
175/80
H2SO4
Sulphuric Acid
10%
velocity < 3 m/s
100/38
100/38
X
H2SO4
Sulphuric Acid
25%
velocity < 3 m/s
75/24
100/38
X
H2SO4
Sulphuric Acid
40%
velocity < 3 m/s
X
100/38
X
H2SO4
Sulphuric Acid
55%
velocity < 3 m/s
X
86/30
X
H3PO4
Phosphoric Acid
100%
X
X
X
H3PO4
Phosphoric Acid
98%
X
77/25
X
H3PO4
Phosphoric Acid
20%
X
77/25
77/25
H3PO4
Phosphoric Acid
5%
77/25
77/25
77/25
H8CrO5
Chromic Acid
25%
X
167/75
221/105
H8CrO5
Chromic Acid
50%
X
75/24
221/105
H8CrO5
Chromic Acid
100%
X
X
221/105
HBF4
Fluoboric Acid
30%
80/27
200/93
X
HBO3
Hydrobromic Acid
100%
X
140/60
X
HCISO3
Chlorosulphonic Acid
100%
X
185/85
X
HCL
Hydrogen Chloride gas
any
X
X
X
HCl / H2SO4
Aqua Regia
100%
X
X
X
HCL + water
Hydrochloric Acid
any
X
X
X
HClO4
Perchloric Acid
any
X
212/100
nd
HCOO4
Formic Acid (aerated)
50%
X
221/105
221/105
HCOO4
Formic Acid (non-aerated)
85%
X
221/105
X
HCOONa
Sodium Formate
50%
131/55
131/55
nd
HF
Hydrogen Fluoride gas
any
X
X
X
HF + water
Hydrofluoric Acid
any
X
X
X
Hg(CN)2
Mercuric Cyanide
10%
95/35
X
95/35
HgCl2
Mercuric Chloride
10%
X
X
266/130
HNO3
Nitric Acid
100% “red fuming”
75/24
75/24
X
HNO3
Nitric Acid
75%
75/24
75/24
140/ 60
HNO3
Nitric Acid
70%
75/24
75/24
140/ 60
HNO3
Nitric Acid
50%
100/38
75/24
140/ 60
HNO3
Nitric Acid
40%
125/52
75/24
140/ 60
HNO3
Nitric Acid
30%
130/66
75/24
140/ 60
HNO3
Nitric Acid
20%
176/80
130/66
140/ 60
HNO3 + HF Mixture
“Passivation” fluid
X
X
X
I2
Iodine Liquid
100%
X
77/25
K2SO4
Potassium Sulphate
25%
212/100
X
240/115
KBr
Potassium Bromide
100%
X
X
KBr
Potassium Bromide
30%
X
95/35
KCI
Potassium Chloride
99%
X
KI
Potassium Iodide
75%
212/100
212/100
212/100
KMnO4
Potassium Permanganate
100%
X
KNO3
Potassium Nitrate
100%
X
212/100
240/115
KOH
Potassium Hydroxide
40%
170/77
170/77
170/77
LiCl
Lithium Chloride
50%
X
212/100
212/100
Mg(OH)2
Magnesium Hydroxide
100%
212/100
212/100
67/75
MgCl2
Magnesium Chloride
50%
X
280/138
248/120
MgSO4
Magnesium Sulphate
50%
nd
200/93
200/93
MnCl2
Manganese Chloride
45%
X
212/100
212/100
Na2CO3
Sodium Carbonate
100%
212/100
212/100
212/100
= Compatible
X = Not Compatible
nd = No Data Available