tert-Butyl mercaptan

NO.75
(CH3)3CSH
Performance
Measuring Range
2.5 to 30 mg/m3 30 to 60 mg/m3 60 to 150 mg/m3
Number of Pump Strokes
2 1 1/2
Correction Factor
1 2 5
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 0.5 mg/m3 (n=2)
Colour Change Yellow → Red
Reaction Principle (CH3)3CSH +HgCl2 → (CH3)3CSHgCl + HCl
HCl + Basic compounds → Chlorides
Coefficient of Variation 10% (for 2.5 to 10 mg/m3), 5% (for 10 to 30 mg/m3)
Shelf Life 2 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Hydrogen sulphide   + Red
Phosphine   + Red
Other mercaptans   + Red
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
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