Carbonyl sulfide

carbonyl sulfide

How to detect Carbonyl sulfide

Formula: COS | CAS: 463-58-1

Synonyms: carbonyl sulfide

Carbonyl sulfide is a commonly occurring product of breakdown of sulfur containing foodstuffs such as fish. It is emitted in refining and plastic manufacture and in burning of refuse. It is also used in the manufacture of herbicides.

Specification

Specification	Value/Information
Formula	COS
CAS no.	463-58-1
Gas Response Factor, 11.7 eV	0.40
Gas Response Factor, 10.6 eV	ZR
Gas Response Factor, 10.0 eV	ZR
ppm per mg/m⁻³, (20 °C, 1 bar)	0.4
Molecular Weight, g/mole	60.1

Specification	Value/Information
Melting point, °C	-138
Boiling point, °C	-50
Flash point, °C	-87
Upper Explosive Limit, %	29
Lower Explosive Limit, %	6.5
Density, g.cm⁻³	2.636
Ionisation Energy, eV	11.18

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Comparative specifications
Sensor Variant	MiniPID 2 PPM WR VOC Sensor	MiniPID 2 PPM VOC Sensor	MiniPID 2 PPB WR VOC Sensor	MiniPID 2 PPB VOC Sensor	MiniPID 2 HS VOC Sensor	MiniPID 2 10.0 eV VOC Sensor	MiniPID 2 11.7 eV VOC Sensor
Electrode Stack Colour	Blue	Blue	White	White	Red	White + Gold Spot	White
Minimum Detection Limit	500 ppb	100 ppb	20 ppb	1 ppb	0.5 ppb	5 ppb	100 ppb
Range	0 to >10,000 ppm	0 to 4000 ppm	0 to >200 ppm	0 to >40 ppm	0 to >3 ppm	0 to >100 ppm	0 to >100 ppm
Response Time T90 (s)	<3	<3	<8	<8	<12	<8	<8
Sensitivity	>0.4 mV/ppm @ 100ppm	>0.65 mV/ppm @ 100 ppm	>5 mV/ppm	>30 mV/ppm	>600 mV/ppm	>15 mV/ppm	>1 mV/ppm
Lamp Energy	10.6 eV	10.6 eV	10.6 eV	10.6 eV	10.6 eV	10.0 eV	11.7 eV
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