KROHNE OPTIMASS Sensors Corrosion guidelines EN User Manual
Page 8
8
Corrosion Guide Rev 1.05 Jan 2006
Fluid
Chem. Formula
Concentration
Stainless Steel
Max
o
F/
o
C
Hastelloy C-22
Max
o
F/
o
C
Titanium
Max
o
F/
o
C
Lactic Acid
CH3CHOHCOOH
25%
122/50
122/50
122/50
Lithium Chloride
LiCl
50%
X
212/100
212/100
Magnesium Chloride
MgCl2
50%
X
280/138
248/120
Magnesium Hydroxide
Mg(OH)2
100%
212/100
212/100
167/75
Magnesium Sulphate
MgSO4
50%
nd
200/93
200/93
Maleic Acid
CH2(COOH)2
100%
X
176/80
248/120
Manganese Chloride
MnCl2
45%
X
212/100
212/100
Mercuric Chloride
HgCl2
10%
X
X
266/130
Mercuric Cyanide
Hg(CN)2
10%
95/35
X
95/35
Methanol + > 2% H2O
C2H4OH
98%
Methanol + > 50ppm H20
C2H40H
99.99%
X
Methanol pure
C2H40H
100%
X
Methyl Ethyl Ketone
CH3CH2COCH3
100%
200/93
200/93
200/93
Methyl Methacrylate
C5H8O2
100%
Methylene Chloride
CH2Cl2
100%
X
X
239/115
Mono Sodium
Orthophosphate in water
NaPO3
200 millimoles
nd
nd
86/30
Monochloacetic Acid
CH2ClCOOH
100%
nd
nd
N-Butyric Acid
CH3(CH2)2COOH
100%
X
212/100
212/100
Nickel Chloride
NiCl2
100%
X
194/90
194/90
Nickel Nitrate
Ni(NO3)2
50%
X
77/25
Nickel Sulphamate
50%
Nitric Acid
HNO3
100% “red fuming”
75/24
75/24
140/60
Nitric Acid
HNO3
70%
75/24
75/24
140/ 60
Nitric Acid
HNO3
50%
100/38
75/24
140/ 60
Nitric Acid
HNO3
40%
125/52
75/24
140/ 60
Nitric Acid
HNO3
30%
130/66
75/24
140/ 60
Nitric Acid
HNO3
20%
176/80
130/66
140/ 60
Oxalic Acid
(COOH)2
100%
X
212/100
X
Oxygen rich gas mixture
O2
> 35%
X
“Passivation” fluid
Mixture HNO3 + HF
X
X
X
Pentane
C5H10
100%
X
Perchloric Acid
HClO4
any
X
212/100
nd
Phenol
C6H5OH
95%
131/55
X
Phosphoric Acid
H3PO4
100%
X
X
X
Phosphoric Acid
H3PO4
98%
X
77/25
X
Phosphoric Acid
H3PO4
20%
X
77/25
77/25
Phosphoric Acid
H3PO4
5%
77/25
77/25
77/25
Potassium Bromide
KBr
100%
X
X
Potassium Bromide
KBr
30%
X
95/35
Potassium Chloride
KCI
99%
X
Potassium Hydroxide
KOH
40%
170/77
170/77
170/77
Potassium Iodide
KI
75%
212/100
212/100
212/100
Potassium Nitrate
KNO3
100%
X
212/100
240/115
Potassium Permanganate
KMnO4
100%
X
Potassium Sulphate
K2SO4
25%
212/100
X
240/115
Propanol (Propyl Alcohol)
C3H6OH
100%
Seawater (Brine)
C3H6OH
100%
X
Silver Nitrate
AgNO3
70%
85/30
85/30
212/70
Sodium Bisulphate
NaHSO4
20%
X
X
85/30
Sodium Carbonate
Na2CO3
100%
212/100
212/100
212/100
Sodium Chlorate
NaCIO3
100%
X
302/150
302/150
Sodium Chloride
NaCI
100%
X
212/100
212/100
Sodium Cyanide
NaCN
50%
77/25
nd
266/130
Sodium Dichromate
Na2Cr
100%
X
80/27
77/25
Sodium Formate
HCOONa
50%
131/55
131/55
nd
= Compatible
X = Not Compatible
nd = No Data Available