![]() ![]() Significant safety data come from the viscose rayon Industry, where both carbon disulfide as well as small amounts of H 2S may be present. In 2007 Alfa Aesar stopped selling carbon disulfide samples.Īt very high levels, carbon disulfide may be life-threatening because it affects the nervous system. Dilution with nitrogen rendered contents nonflammable. Johnson Matthey's sister company Alfa Aesar was the first company to introduce carbon disulfide in the form of pressurized bottle containing a solution of pressurized nitrogen, coupling agent, stablizer, and carbon disulfide, with an active carbon disulfide content of 85%. Worldwide exports of this chemical are negligible. Commercial AvailabilityĬS 2, being highly flammable and having one of the lowest autoignition temperatures, cannot be transported easily using commercial means. If the boiling point elevation was 0. This conversion proceeds via the intermediacy of thiophosgene, CSCl 2.ĬS 2 is a ligand for many metal complexes, forming pi complexes. A sample of sulfur weighing 0.210 g was dissolved in 17.8 g of carbon disulfide, CS2 (K b 2.43 ☌/m). Sodium reduces CS 2 to give the heterocycle "dmit 2-": 3 CS 2 + 4 Na → Na 2C 3S 5 + Na 2Sĭirect electrochemical reduction affords the tetrathiooxalate anion: 2 CS 2 + 2e - → C 2S 4 2- ChlorinationĬhlorination of CS 2 is the principal route to carbon tetrachloride: CS 2 + 3 Cl 2 → CCl 4 + S 2Cl 2 ![]() Both xanthates and the related thioxanthates (derived from treatment of CS 2 with sodium thiolates) are used as flotation agents in mineral processing. This reaction is the basis of the manufacture of regenerated cellulose, the main ingredient of viscose, rayon and cellophane. Nucleophiles such as amines afford dithiocarbamates: It is widely used in the synthesis of organosulfur compounds such as Metham sodium, a soil fumigant. These differences in reactivity can be attributed to the weaker π donor-ability of the sulfido centers, which renders the carbon more electrophilic. Although it is isoelectronic to carbon dioxide, CS 2 is highly flammable:Ĭompared to CO 2, CS 2 is more reactive toward nucleophiles and more easily reduced. The reaction is analogous to the combustion of methane. ![]() The overall reaction is5C+2SO2CS2+4COHow much CS2 (in kg) can be produced from 440 kg of waste. A lower temperature reaction, requiring only 600 ☌ utilizes natural gas as the carbon source in the presence of silica gel or alumina catalysts: CH 4 + 1/2 S 8 → CS 2 + 2 H 2S Carbon disulphide, CS2, can he made from by-product SO2. CS 2 once was manufactured by combining carbon (or coke) and sulfur at high temperatures. 97 minimum ( v/v Greater Than 46.6 Degree C.) Non volatile content. Small amounts of carbon disulfide are released by volcanic eruptions and marshes. 1.262 - 1.265 at 20 Degree C Distillation Ratio. 3.1 Pressurized Liquid Nitrogen Based Sample.Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. Alkyl sulfates are carcinogenic Take particular care to avoid inhalation and skin contact. Keep container tightly closed.ĩ Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. P403 + P233: Store in a well-ventilated place. P308 + P313: IF exposed or concerned: Get medical advice/ attention. Remove contact lenses, if present and easy to do. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Call a POISON CENTER/doctor if you feel unwell. P304 + P340 + P312: IF INHALED: Remove person to fresh air and keep comfortable for breathing. P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. P201: Obtain special instructions before use. Products & Solutions About Us Home Drger VOICE Carbon disulfide Carbon disulfide CS2 Details Limit values H, P, EUH - Statements Chemical information Hazard diamond Synonyms Contact Us Hazard signs GHS02 GHS07 GHS08 Occupational exposure limit ACGIH (US) TWA ( ppm) 1 TWA ( mg/m3) 3. H372: Causes damage to organs through prolonged or repeated exposure. H225: Highly flammable liquid and vapour. Ph Eur and ACS.Ĭarbon disulfide for spectroscopy Uvasol®. Furthermore the transmittance is specified in accordance with Reag. In all specifications the minimum transmittance for 5 typical wavelengths are identified. Uvasol® solvents offer best UV transmittance. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. The Uvasol® solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. ![]()
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