KROHNE OPTIMASS Sensors Corrosion guidelines EN - Manual (Page 9)

9 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
Sodium Hydroxide NaOH 45% X 104/40 131/55
Sodium Hydroxide NaOH 75% X 104/40 X
Sodium Hypochlorite NaOCl any X X X
Sodium Iodide NaI 65% X nd 212/100
Sodium Nitrate NaNO3 60% 233/112 233/112 248/120
Sodium Nitrate NaNO3 100% X X 248/120
Sodium Nitrite NaNO2 50% 212/100 212/100 266/130
Sodium Peroxide (Na)2O2 15% 212/100 X X
Sodium Phosphate NaPO4 15% X 212/100 212/100
Sodium Silicate Na2SiO3 100% 212/100 212/100 212/100
Sodium Sulphate Na2SO4 20% 212/100 212/100 X
Sodium Sulphide Na2S 50% X 212/100 X
Sodium Sulphite NaSO3 25% 212/100 212/100 212/100
Sodium Sulphite NaSO3 50% nd nd 212/100
Stannic Chloride SnCl2 any X X X
Stearic Acid CH2(CH2)16COOH 100% 212/100 X
Succinic Acid (CH2 COOH)2 50% X X
Sulphamic Acid NH2 SO2 OH any X nd X
Sulphur (molten) S 100%
Sulphuric Acid H2SO4
10%velocity
< 3 m/s
100/38 100/38 X
Sulphuric Acid H2SO4
25%velocity
< 3 m/s
75/24 100/38 X
Sulphuric Acid H2SO4
40%velocity
< 3 m/s
X 100/38 X
Sulphuric Acid H2SO4
55%velocity
< 3 m/s
X 86/30 X
Sulphurous Acid H2SO3 10% X X 175/80
Tannic Acid C76H52O46 95% 212/100 X 212/100
Tartaric Acid (CHOHCOOH) 2 50% 212/100 X 122/50
Terephthalic Acid C8H6O4 77%
Tetrachlorethane C2H2Cl4 100% X 160/71 160/71
Tetrachlorethylene
(Perchloroethylene)
Cl2C:CCl2 100% X 285/140 X
Thionyl Chloride SO2Cl2 100% X nd 104/40
Toluene C6H5CH3 100%
Trichlorethane C2H3Cl3 100% X X 77/25
Tricloroacetic Acid CCl3COOH 50% X 212/100 nd
Trisodium Phosphate (Na)3PO4 90% X nd
Urea (NH2)2CO 100% 194/90 194/90 194/90
Zinc Chloride ZnCL2 75% X 212/100
Zinc Chloride ZnCL2 100% X X
Zinc Sulphate ZnSO4 35% X 212/100 212/100
= Compatible X = Not Compatible nd = No Data Available