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366919

Sigma-Aldrich

Chloroform

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

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Synonym(s):
Methylidyne trichloride, Trichloromethane
Empirical Formula (Hill Notation):
CHCl3
CAS Number:
67-66-3
Molecular Weight:
119.38
Beilstein:
1731042
MDL number:
MFCD00000826
PubChem Substance ID:
329755456
NACRES:
NA.04

grade

ACS spectrophotometric grade

Quality Level

100

vapor density

4.1 (vs air)

vapor pressure

160 mmHg ( 20 °C)

Assay

≥99.8%

form

liquid

contains

0.5-1.0% ethanol as stabilizer

technique(s)

UV/Vis spectroscopy: suitable

impurities

Acetone and aldehyde, passes test
 Acid and chloride, passes test
 Free chlorine (Cl), passes test
 H2SO4, passes test (darkened)
<0.03% water

evapn. residue

<0.001%

color

APHA: ≤10

refractive index

n20/D 1.445 (lit.)

bp

60.5-61.5 °C (lit.)

mp

−63 °C (lit.)

density

1.48 g/mL at 25 °C (with ethanol stabilizer)
1.492 g/mL at 25 °C (lit.)

cation traces

Pb: ≤0.05 ppm

λ

H2O reference

UV absorption

λ: 245 nm Amax: 1.00
λ: 255 nm Amax: 0.25
λ: 260 nm Amax: 0.15
λ: 270 nm Amax: 0.05
λ: 290-400 nm Amax: 0.01

SMILES string

ClC(Cl)Cl

InChI

1S/CHCl3/c2-1(3)4/h1H

InChI key

HEDRZPFGACZZDS-UHFFFAOYSA-N

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General description

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.

Application

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.

Pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

Signal Word

Danger

Hazard Classifications

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

Target Organs

Central nervous system

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

does not flash

Flash Point(C)

does not flash

Regulatory Information

危险化学品
易制毒化学品（2类）

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Systematic studies on the breakdown of p,p'-DDT in tobacco smokes. Presence of methyl chloride, dichloromethane, and chloroform in tobacco smokes.
Chopra NM and Sherman LR.
Analytical Chemistry, 44(6), 1036-1038 (1972)
The affinity of two antimicrobial peptides derived from bovine milk proteins for model lipid membranes.
Barzyk W, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 343(1), 104-110 (2009)
Kinetics and Mechanism of the Photooxidation of Bis (bipyridine) dichlororuthenium (II) and the Photoreduction of Bis (bipyridine) dichlororuthenium (III) in Chloroform.
Sathiyabalan S and Hoggard PE.
Inorganic Chemistry, 34(18), 4562-4571 (1995)
Engineering of ultra-small diagnostic nanoprobes through oriented conjugation of single-domain antibodies and quantum dots.
Sukhanova A, et al.
Protocol Exchange (2012)
Eagleson M.
Concise Encyclopedia Chemistry, 216-216 (1994)
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