180173

Carbon disulfide

ACS reagent, ≥99.9%

• Formula empirica (notazione di Hill): CS₂
• Numero CAS: 75-15-0
• Peso molecolare: 76.14
• Beilstein: 1098293
• Numero CE: 200-843-6
• Numero MDL: MFCD00011321
• Codice UNSPSC: 12352100
• ID PubChem: 329751607
• NACRES: NA.21

Proprietà

• Grado: ACS reagent
• Livello qualitativo: 200
• Densità del vapore: 2.67 (vs air)
• Tensione di vapore: 5.83 psi
• Saggio: ≥99.9%
• Forma fisica: liquid
• Temp. autoaccensione: 212 °F
• Limite di esplosione: 50 %
• Impurezze: H₂S, passes test (lim. ~1.5 ppm); SO₂, passes test (lim ~2.5 ppm); ≤0.05% water
• Residuo dopo evaporazione: ≤0.002%
• Colore: APHA: ≤10
• Indice di rifrazione: n20/D 1.627 (lit.)
• P. eboll.: 46 °C (lit.)
• Punto di fusione: −112-−111 °C (lit.)
• Densità: 1.266 g/mL at 25 °C (lit.)
• Stringa SMILE: S=C=S
• InChI: 1S/CS2/c2-1-3; QGJOPFRUJISHPQ-UHFFFAOYSA-N

Descrizione

Descrizione generale

Carbon disulfide (CS₂) is a colorless liquid. It is present in atmosphere and natural waters in the form of sulfur gas. It is responsible for the production of sulfur dioxide (SO₂) in the atmosphere (stratosphere and/or troposphere). Its lifetime in the atmosphere has been proposed to be around 12 days. It is a non-polar solvent.

Carbon disulfide is a highly volatile, flammable liquid with low ignition temperature. It can be synthesized by reacting hydrocarbon gas with sulfur. It is an important raw material for preparing viscose rayon and cellophane film.

Applicazioni

Carbon disulfide has been used for the desorption of air samples during analysis of trihalomethanes (THMs) in those samples.
It may be used in the preparation of dibenzyl trithiocarbonate, a RAFT (Reversible Addition-Fragmentation Transfer) chain-transfer agent (CTA). It may be employed as a solvent in the preparation of benzyl chlorodithioformate.

Carbon disulfide may be used in the xanthogenation of cellulose and in the synthesis of poly(ethylene trithiocarbonate) and dithiocarbamates. C₂S may undergo hydrolysis catalyzed by nanosized titania and zirconia to form CO₂ and H₂S. It can also generate 1,3-dithiolium carbenes via cycloaddition with acetylenes.

Confezionamento

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Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS08,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H225,H315,H319,H332,H361fd,H372
• Consigli di prudenza: P202 - P210 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Classi di pericolo: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 1
• Organi bersaglio: Peripheral nervous system,Central nervous system,Cardio-vascular system,Eyes
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): -22.0 °F - closed cup
• Punto d’infiammabilità (°C): -30 °C - closed cup