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Sailor wrote:Scott wrote: That would be Cartox, a mixture of carbon dioxide and ethylene oxide also used for fumigation and sold by Degesch.
I wonder how a gas bottle which contains Cartox was labeled?ETHYLENE OXIDE, HEALTH AND SAFETY GUIDE
2.6 Effects on Human Beings
No ambient air monitoring data are available from which the effects of
ethylene oxide on the health of man and the environment can be
assessed. However, the risk of adverse health effects from exposure
to ethylene oxide in the ambient air, apart from point-source
emissions and accidental spillage, is likely to be negligible.
It looks to me like it is a easily dissolved in alcohol and a liquid is aerated with a tank of carbon dioxide. Unlike Zyklon it kills germs and is used in hospital sterilizers.
All gas sterilizers consist of an enclosed space where items are exposed to EtO for a sufficient period to sterilize them. The two types of gas sterilizers used in health care facilities are (1) automatic, general purpose sterilizers that are supplied by compressed-gas cylinders or single-dose cartridges, and (2) sterilizers that use glass ampules.
If a sterilizer is supplied by a gas cylinder (Figure 1), the sterilizer, cylinder, and associated piping should be contained in a mechanical access room (also called the equipment room or recess room). Access to the front of the sterilizer should be gained through a separate loading room. The loading room should not be routinely occupied when the sterilizer is operating. A window should allow direct observation of the loading area and control console. Sterilizers using cartridges or glass ampules should also be located in separate, ventilated rooms or in laboratory hoods that are appropriate for controlling EtO exposure.
ETHYLENE OXIDE STERILIZERS IN HEALTH CARE FACILITIES
Sailor wrote:Cartox may not be very suitable as a poison gas for homicidal mass-gassings.
It appears to be much safer and easier to handle than HCN:
Human data: Other than temporary, slight irritation, no aftereffects were reported in 4 men after intentional exposure to 2,500 ppm for a brief period; definite nasal irritation was reported after 10 seconds of exposure to 12,500 ppm [Walker and Greeson 1932]. Exposures to concentrations above 2,000 ppm have resulted in headache, nausea, vomiting, dyspnea, hematological abnormalities, and respiratory irritation [NRC 1986]. Based on acute toxicity data in animals, it has been suggested that injury or death would be associated with exposure to 8,000 ppm for 10 minutes, 4,000 ppm for 30 minutes, or 2,000 ppm for 60 minutes; a 1hour exposure to 500 ppm was considered as not likely to produce injury [Clayton and Clayton 1981].
The LC50 (lethal dose for 50% of animals) in rats -- 544 ppm (5min), mice 169 ppm (30 min), dogs 300 ppm (3 min).
HUMAN TOXICITY: [..] exposure to 150 ppm for 1/2 to 1 hour may endanger life. Death may result from a few min. exposure to 300 ppm.
The use of tanks of carbon monoxide makes no sense unless it was at Auschwitz, which was close to Monowitz and the CO production associated with the I.G. Farben chemical plant there. To send tanks of CO to Majdanek for gassings makes no sense. For one thing, CO does not liquify under pressure like CO2, as in a fire extinguisher. To kill lots of people this way is patently absurd. CO is easier to generate on-site from combustible materials like wood or coal.
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