2699-79-8 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 2699-79-8 differently. You can refer to the following data:
1. colourless odourless gas
2. Sulfuryl fluoride is a colorless, poisonous gas. Odorless.
Uses
Different sources of media describe the Uses of 2699-79-8 differently. You can refer to the following data:
1. Sulfuryl fluoride is another promising chemical, which is widely used for control of termites, and stored-product insects. This chemical shows considerable promise and is undergoing registration procedures as replacement for methyl bromide in several countries including the United States, Great Britain, Italy, and France. The fumigant has vapour pressure of about ten times higher (13,442 mm of Hg at 25oC) than that of methyl bromide and hence it is more penetrative into treated commodities which is a significant benefit in situations where insect infestations are located deep within cracks or machinery in premises such as flour mills . The fumigant has several other advantages as a replacement for methyl bromide; it is nonreactive with structural materials and components of electronic equipment, is non flammable and has not caused problems of taint following treatment of a wide range of materials. However the sulfuryl fluoride was found to be less effective in controlling the insect eggs.
2. Insect fumigant
3. Fumigant insecticide; termiticide.
General Description
A colorless odorless gas. Shipped as a liquefied gas under its own vapor pressure. Noncombustible. Heavier than air. Very toxic by inhalation. Contact with the unconfined liquid can cause frostbite. Prolonged exposure to heat can cause containers to rupture violently and rocket.
Air & Water Reactions
Reacts with moist air to give corrosive acid mists that are heavier than air. Decomposes with water forming hydrofluoric acid and sulfuric acid. Reacts violently with bases [Handling Chemicals Safely p. 881 1980].
Reactivity Profile
SULFURYL FLUORIDE is incompatible with water, strong oxidizing agents, alcohols, amines, and bases. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].
Hazard
Toxic by inhalation. Central nervous system
impairment.
Agricultural Uses
Fumigant: Sulfuryl fluoride is used to fumigate closed structures
and their contents such as domestic dwellings, garages,
barns, storage buildings, commercial warehouses,
ships in port, and railroad cars. It controls numerous insect
pests including termites, powder post beetles, old house
borers, bedbugs, carpet beetles, clothes moths and cockroaches,
as well as rats and mice. It is also used in organic
synthesis of drugs and dyes. Use pending in EU countries[
115]. Registered for use in the U.S.
Trade name
TERMAFUME?; VIKANE?; VIKANE
FUMIGANT?
Safety Profile
Poison by ingestion. Mildly toxic by inhalation. Accidental human exposure caused nausea, vomiting, cramps, itching. May be narcotic in high concentration. Experimental reproductive effects. Can react with water, steam. When heated to decomposition it emits very toxic fumes of Fand SOx. See also FLUORIDES.
Potential Exposure
Sulfuryl fluoride is used an insecticidal fumigant. It is also used in organic synthesis of drugs and dyes.
Shipping
UN2191 Sulfuryl fluoride, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, Inhalation Hazard Zone D.
Incompatibilities
Reacts with water and steam; at temperatures ＞300℃, forms strong, highly corrosive acids. Incompatible with strong oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from metal hydroxides, alcohols, alkaline materials, amines, strong acids, strong bases. Fluorides form explosive gases on contact with strong acids or acid fumes.
Waste Disposal
Return refillable compressed gas cylinders to supplier. Addition of soda ash-slaked lime solution to form the corresponding sodium and calcium salt solution. This solution can be safely discharged after dilution. The precipitated calcium fluoride may be buried or added to a landfill. Small amounts could also be released directly to the atmosphere without serious harm.
Check Digit Verification of cas no
The CAS Registry Mumber 2699-79-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,9 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2699-79:
(6*2)+(5*6)+(4*9)+(3*9)+(2*7)+(1*9)=128
128 % 10 = 8
So 2699-79-8 is a valid CAS Registry Number.
InChI:InChI=1/F2O2S/c1-5(2,3)4
2699-79-8Relevant articles and documents
Chemoselective Hydro(Chloro)pentafluorosulfanylation of Diazo Compounds with Pentafluorosulfanyl Chloride
Qing, Feng-Ling,Shou, Jia-Yi,Xu, Xiu-Hua
supporting information, p. 15271 - 15275 (2021/06/08)
Pentafluorosulfanyl chloride (SF5Cl) is the most prevalent reagent for the incorporation of SF5 group into organic compounds. However, the preparation of SF5Cl often relies on hazardous reagents and specialized apparatus. Herein, we described a safe and practical synthesis of a bench-stable and easy-to-handle solution of SF5Cl in n-hexane under gas-reagent-free conditions. The synthetic application of SF5Cl was demonstrated through the unprecedented reaction with diazo compounds. The chemoselective hydro- and chloropentafluorosulfanylations of α-diazo carbonyl compounds were developed in the presence of K3PO4 or copper catalyst, respectively. These reactions provide a direct and efficient access to various α-pentafluorosulfanyl carbonyl compounds of high value for potential applications.
One-pot fluorosulfurylation of Grignard reagents using sulfuryl fluoride
Lee, Cayo,Ball, Nicholas D.,Sammis, Glenn M.
, p. 14753 - 14756 (2019/12/23)
Herein, we report a new method for the one-pot syntheses of sulfonyl fluorides. Addition of an alkyl, aryl, or heteroaryl Grignard to a solution of sulfuryl fluoride at ambient temperature affords the desired sulfonyl fluorides in 18-78% yield. Furthermore, this method is applicable for in situ sequential reactions, whereby the Grignard reagent can be converted to the corresponding diarylsulfone, sulfonate ester, or sulfonamide in a one-pot process.
Novel synthetic route to perfluoroallyl cyanide (PFACN) reacting perfluoroallyl fluorosulfonate with cyanide
Tverdomed, Sergey N.,Hirschberg, Markus E.,Pajkert, Romana,Hintzer, Klaus,R?schenthaler, Gerd-Volker
, p. 65 - 69 (2018/03/21)
A novel synthetic method for the preparation of perfluoroallyl cyanide CF2[dbnd]CFCF2CN (PFACN) is presented. This includes the addition – elimination reaction of cyanide anion with perfluoroallyl fluorosulfate CF2[dbnd]CF
