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产品详情
简单介绍:
Performance Measuring Range 10 to 100 ppm Sampling Time 2 minutes Detecting Limit 1 ppm Colour Change White → Brown Reaction Principle S2- + Pb(CH3COO)2→ PbS Shelf Life 3 Years Corrections for tempera
详情介绍:
sulphide
Ion
NO.211H
S2-

|
Performance
| |||
|
Measuring Range
|
10 to 100 ppm
| ||
|
Sampling Time
|
2 minutes
| ||
|
Detecting Limit
|
1 ppm
| ||
|
Colour Change
|
White → Brown
| ||
|
Reaction Principle
|
S2- + Pb(CH3COO)2→ PbS
| ||
|
Shelf Life
|
3 Years
| ||
|
Corrections for temperature & humidity
|
Unnecessary
| ||
|
Store the tubes at cool and dark place.
| |||
|
Possible coexisting substances
and their interferences (NOTE)
| |||
|
Substance
|
Concentration
|
Interference
|
Change colour by itself
to
|
|
Cl-
|
15000 ppm
|
+
|
No
|
|
CrO42-
|
100 ppm
|
-
|
Yellow
|
|
CO32-
|
500 ppm
|
+
|
No
|
|
SO32-
|
100 ppm
|
-
|
No
|
|
S2O32-
|
100 ppm
|
+
|
No |