Sulfur trioxide is a white gas having the appearance of fog. Sulfur trioxide sometimes spelled sulphur trioxide is a chemical substance made of 1 sulfur and 3 oxygen atoms so 3. Toxicological profile for sulfur trioxide and sulfuric acid. So3 is also called sulfuric oxide and sulfuric anhydride. Sulfur dioxide so2 safety data sheet sds p4655 praxair. It is intensely irritating to the eyes, throat, and respiratory tract. Sulfur is the tenth most common element by mass in the universe. Your new online msds binder is a place for you to store the material safety data sheets you need to deploy.
Sulfur hexafluoride 100 2551624 ingredient name % cas number there are no additional ingredients present which, within the current knowledge of the supplier and in the. Ingestion ingestion of small amounts of solid sulfur should not cause significant health effects. In the air, sulfur trioxide can be formed slowly from sulfur dioxide. When oleum comes into contact with air following a spill, it releases sulfur trioxide. Material safety data sheet affinity chemical llc p. Remove person to fresh air and keep comfortable for breathing. First, oxides such as sulfur trioxide so3 and dinitrogen pentoxide n2o5, in which the nonmetal exhibits one of its common oxidation numbers, are known as acid anhydrides. Higher exposures may cause a buildup of fluid in the lungs pulmonary edema, a medical emergency.
Sulfur oxides sox, including sulfur oxide and sulfur dioxide. Sulfur trioxide so3 or o3s cid 24682 structure, chemical names, physical. Molten sulfur may evolve hydrogen sulfide h2s h2s is a flammable gas and may present an explosion hazard. First aid measures general advice consult a physician. Sulfur trioxide alternative spelling sulphur trioxide is the chemical compound with the formula so 3, with a relatively narrow liquid range. Sulfuric acid is a strong dehydrating agent that can strip available water molecules and water components from sugar and organic tissue. Trace impurities and additional material names not listed above may also appear in section 15 towards the end of the msds. Trail operations trail, british columbia v1r 4l8 emergency telephone. Sulfur trioxide made by catalysis from sulfur dioxide and sulfuric acid are similarly highly acidic and corrosive in the presence of water. Sulfur dioxide safety data sheet p4655 this sds conforms to u.
These oxides react with water to form oxyacids, with no change in the oxidation number of the nonmetal. Forms aluminum oxide, sulfur dioxide andor sulfur trioxide at temperatures reported above 650. Box 601298 dallas, tx 75360 2146012050 24hour emergency telephone chemtrec 1 800 4249300 product name. Hazards identification summary keep out of reach of children caution causes moderate eye irritation. Material safety data sheet sulfur precipitated and sublimed. Sulfur trioxide may be used in the synthesis of methane sulfonic acid msa by sulfonating methane. Sigmaaldrich 3050 spruce street saint louis mo 63103 usa telephone. A violent reaction or flaming is likely in the reaction of chromium oxide and aluminum powder.
Sulfur trioxide n,ndimethylformamide complex 97% sigma. Sep 26, 2019 toxicological profile for sulfur trioxide and sulfuric acid. When so3 is exposed to air, it rapidly takes up water and gives off white fumes. Mar 03, 2011 sulfur trioxide so3 is generally a colorless liquid. Other companies are charging thousands of dollars to set up accounts and give you access to their msds online database. Sulfur burns with a pale blue flame that may be difficult to see in daylight.
Under fire conditions at temperatures greater than 650c or 1202f, decomposes to give off sulfur trioxide, an oxidizing agent which will support combustion. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula s 8. Sulfurous acid anhydride, sulfurous oxide, sulfur dioxide, so 2 manufacturer. Sulfur trioxide n,ndimethylformamide complex 97% synonym. It reacts violently with water to form sulfuric acid with the release of heat. Sulfur dioxides primary health concern is that it will attack the lungs, mucous membranes and the eyes, and the skin leading to severe injury or death.
It can also exist as ice or fiberlike crystals or as a gas. In the gaseous form, this species is a significant pollutant, being the primary agent in acid rain. Contact with metals may produce toxic sulfur dioxide fumes and may release flammable hydrogen gas. Msds pure elemental sulphur fertilizer page 2 flash point c auto ignition c flammable limits in air % by vol pure liquid s 188 c, 370 f dust clouds 190 c 374 f minimum explosion concentration is approximately 35 gm per cu. The reaction of anhydrous perchloric acid with sulfur trioxide is violent and accompanied by the evolution of considerable heat pascal 16. May contain lowmelting solid polymer, the formation of which is unavoidable. It is used in the production of sulfuric acid and other chemicals, and explosives. Safety data sheet northwest missouri state university.
Liquid sulfur trioxide reacts violently with nitryl chloride, even at 75 c. Dry alum will dissolve in water to form sulfuric acid which reacts with some metals, especially when. Seek appropriate medical attention and provide this sds to attending doctor. It can be prepared by the oxidation of sulfur dioxide in the presence of vanadia catalyst. Sulfur trioxide, is a colorless to white crystalline solid which will fume in air. Often shipped with inhibitor to prevent polymerization. When heated above 650770c 12001418f aluminum sulfate forms sulfur dioxide, sulfur trioxide, aluminum oxide and sulfuric acid. Use appropriate extinguisher for surrounding material. A mixture of chromium trioxide, and sulfur ignites on warming. It can dissolve violently in water to make sulfuric acid. Sulfur dioxides odor is strong enough that it can be detected at. Acute exposure guideline levels aegls for sulfuric acid.
Burning sulfur will flow and emits large quantities of sulfur dioxide so2, a toxic, irritating, and suffocating gas that can cause severe lung damage and death. Sulfur in british english, sulphur is a chemical element with the symbol s and atomic number 16. Sulfur trioxide pyridine complex, 4850% active so3 revision date 18jan2018 hazard class 8 packing group ii imdgimo unno un3261 proper shipping name corrosive solid, acidic, organic, n. Sulfur trioxide is unlikely to exist in the environment except for very short periods when it may be present in the air as a gas. Show this safety data sheet to the doctor in attendance.
Elemental sulfur is a bright yellow, crystalline solid at room temperature. Sulfur trioxide is a colorless to white, crystalline sandlike. Sulfur trioxide simple english wikipedia, the free. Molten sulfur may cause 1st, 2nd, or 3rd degree thermal burns. The right to know hazardous substance fact sheets are not intended to be copied and sold for commercial purposes. May 22, 2015 sulphur dioxide page 1 of 6 sulphur dioxide safety data sheet section 1.
P320 specific treatment is urgent see section 4 on this sds. The reaction of sulfur trioxide and lead oxide causes white luminescence mellor 7. Arsenic reacts with chromium trioxide with incandescence. Therefore the 4 sulfuric acid aegls should apply in such situations. May cause corneal burns or severe irritation in eyes. Reacts with sodium or potassium with incandescence. Wash exposed area extremely thoroughly, but gently. Sulfur trioxide so3 is generally a colorless liquid. Avoid contact with strong acids, bases, halides, halogenates, potassium nitrate.
Extinguishing media dry chemical, foam, carbon dioxide. Fire fighting equipmentinstructions firefighters should wear full protective clothing. In the gaseous form, this species is a significant pollutant, being the primary agent in acid rain it is prepared on an industrial scale as a precursor to sulfuric acid, and is also known as sulfuric anhydride. It is used primarily as a sulfating agent in making detergents, as a disinfectant. Sulfur trioxide n,ndimethylformamide complex 97% sigmaaldrich. Trail operations trail, british columbia v1r 4l8 preparer. Sulfur trioxide is a colorless to white, crystalline sandlike solid which can also exist as a gas or liquid. These materials may be listed for local righttoknow compliance and for other reasons. Sulfur trioxide is an oxide of sulfur that is released during the combustion of sulfur bearing fuels. Sulfur not listed as a carcinogen by acgih, iarc, ntp, or ca prop 65. The dative bond between nitrogen and sulfur is believed to be only partially formed.
188 974 1379 581 1345 444 887 1326 133 84 56 628 627 1391 571 60 645 677 988 207 1222 77 171 4 822 1262 742 675 450 417 226 592 625 732 1319 1210 824 149 582