Which Chemical Is Used For Fumigation? [Solved]

Getzendaner et al (1965) found that in dry beans and field peas fumigated with chloropicrin at 32 to 64 g/m³ for 24 hours at 25 to 26°C, residues were not in excess of 2 mg/kg after 4 days of aeration. The fumigant was almost completely eliminated from peas and beans as well as wheat flour, cereals, chicken feed, and breakfast foods with the same treatment. However, it’s doing not disappear after three days.() days measurable amounts of chloropicrin, up to 9 mg/kg, persisted in wheat flour and up to 16 mg/kg in chicken feed 🙈 In the other materials the residues were less than 2 mg/kg 😊 After baking, flour containing 3.7 mg/kg chloropicrin did not contain any measurable levels. The physical condition of the fumigated material may play a significant role in the initial residue. [1]
The thermal conductivity metres, described in Chapter 4, can be used for gross determinations of the concentration of sulphurylfluoride. Fly using known concentrations of the gas, these instruments may be calibrated to read the gas concentration in terms of oz/1000 ft³. An unbroken relationship is used to read concentrations of Sulphuryl Fluoride in instruments that have been calibrated for methyl bromide. For example, a reading of 7 g/m³ is equivalent to 4 9 of sulphuryl fluoride/m3. Thermal conductivity metres’ accuracy decreases as the concentrations drop to the point that readings are no longer reliable at levels below 4g of sulfur fluoride (approximately 996 ppm/m3). The readings are still accurate enough to be used in normal fumigation procedures. Heuser (1963), described two methods that can be used to determine sulphuryl fluoride in field conditions. This would be also useful in determining the efficiency of thermal conductivity analysers. The manufacturers point out that the above-mentioned halide lamps are not compatible with sulphuryl fluoride. A special device that they have developed is suggested (Gray 1960; Dow Chemical Company 1962). This fumigant can be sensitively analyzed using the infrared analyzer, described in Chapter 3. A modified portable SO2 analyzer is recommended by Dow Chemical Company for its accuracy, speed and low price. Vernita Nix, Nantes France, edited this article 79 days ago. [2]
Image #2
Fao.org This article provides more information. The majority of insect species are not affected by methyl bromide. However, methyl bromide is an efficient and versatile fumigant due to its other characteristics. Most important is the fact that it can penetrate deeply and quickly into sorptive substances at normal atmospheric pressure. Additionally, after treatment is complete, vapours are rapidly dissipated and bulk commodities can be safely handled. Important: property is the fact that many living In insecticide treatments, plants can tolerate this gas. In normal circumstances, methyl bromide will not cause flames and is safe to use. [3]
Image #3
Fumigants, which are gaseseous pesticides, can be found in the following: control pests Structures such as buildings, apartments, storage homes, and other structures can be found in agriculture fields. Fumigants are generally biocides—chemicals that can kill/injure living organisms with which they come in contact. Fumigants can also be part of volatiles. Organic compounds (VOCs). VOCs, which are hazardous compounds that contribute to the formation of smog, are well-known. Some of the most well-known examples are sulfuryl fluoride and formaldehyde. Let’s now take a look at some of the important chemical properties of fumigants and how they are relevant when deciding on the right fumigant. Lashondra C. Cottrell modified the text on July 20, 2021 [4]