366919

Cloroformio

ACS spectrophotometric grade, ≥99.8%, contains 0.5-1.0% ethanol as stabilizer

• Sinonimo/i: Triclorometano, Tricloruro di metilidina
• Formula empirica (notazione di Hill): CHCl₃
• Numero CAS: 67-66-3
• Peso molecolare: 119.38
• Beilstein: 1731042
• Numero MDL: MFCD00000826
• Codice UNSPSC: 12191502
• ID PubChem: 329755456
• NACRES: NA.04

Proprietà

• Grado: ACS spectrophotometric grade
• Livello qualitativo: 100
• Densità del vapore: 4.1 (vs air)
• Tensione di vapore: 160 mmHg ( 20 °C)
• Saggio: ≥99.8%
• Stato: liquid
• contiene: 0.5-1.0% ethanol as stabilizer
• tecniche: UV/Vis spectroscopy: suitable
• Impurezze: Acetone and aldehyde, passes test; Acid and chloride, passes test; Free chlorine (Cl), passes test; H₂SO₄, passes test (darkened); <0.03% water
• Residuo dopo evaporazione: <0.001%
• Colore: APHA: ≤10
• Indice di rifrazione: n20/D 1.445 (lit.)
• P. ebollizione: 60.5-61.5 °C (lit.)
• Punto di fusione: −63 °C (lit.)
• Densità: 1.48 g/mL at 25 °C (with ethanol stabilizer); 1.492 g/mL at 25 °C (lit.)
• Cationi in tracce: Pb: ≤0.05 ppm
• λ: H₂O reference
• Assorbanza UV: λ: 245 nm A_max: 1.00; λ: 255 nm A_max: 0.25; λ: 260 nm A_max: 0.15; λ: 270 nm A_max: 0.05; λ: 290-400 nm A_max: 0.01
• Stringa SMILE: ClC(Cl)Cl
• InChI: 1S/CHCl3/c2-1(3)4/h1H; HEDRZPFGACZZDS-UHFFFAOYSA-N

Descrizione

Descrizione generale

Chloroform is a is a colorless, volatile chlorinated organic solvent whose vapors have narcotic effect. It is susceptible to degradation with time which can be suppressed by adding ethanol as a stabilizer. Since ethanol is added in higher concentration it leads to increase in polarity which may have a potential influence on some of the applications. Spectrophotometric grade chloroform shows low UV absorption which makes it an ideal solvent for spectrophotometry.

Applicazioni

Chloroform (spectrophotometric grade) was used in the following processes:

• Synthesis of colloidal hydrophobic CdSe core nanocrystals (quantum dots).
• Preparing phospholipid solutions.
• As a solvent in the photolysis reaction of ruthenium complexes.

It may be used as:

• Solvent for recrystallization.
• Reference compound to detect the presence of chloroform in Tobacco smokes.
• Extractant in solvent extraction process.

Informazioni sulla sicurezza

• Pittogrammi: GHS06,GHS08
• Avvertenze: Danger
• Indicazioni di pericolo: H302,H315,H319,H331,H336,H351,H361d,H372
• Consigli di prudenza: P202 - P301 + P312 - P302 + P352 - P304 + P340 + P311 - P305 + P351 + P338 - P308 + P313
• Classi di pericolo: Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 1 Oral - STOT SE 3
• Organi bersaglio: Central nervous system, Liver,Kidney
• Codice della classe di stoccaggio: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): does not flash
• Punto d’infiammabilità (°C): does not flash