Description
Description
Chloroform ACS Spectrophotometric Grade ≥99.8% 2 Liter
Synonym: Methylidyne trichloride, Trichloromethane
- CAS Number 67-66-3
- Empirical Formula (Hill Notation) CHCl3
- Molecular Weight 119.38
- Beilstein/REAXYS Number 1731042
- MDL number MFCD00000826
- PubChem Substance ID 329755456
- NACRES NA.04
| Grade | ACS spectrophotometric grade |
| Vapor Density | 4.1 (vs air) |
| Vapor Pressure | 160 mmHg (20°C) |
| Assay | ≥99.8% |
| Contains | 0.5-1.0% ethanol as stabilizer |
| Impurities | Acetone and aldehyde, passes test |
| Acid and chloride, passes test | |
| Free chlorine (Cl), passes test | |
| H2SO4, passes test (darkened) | |
| <0.03% water | |
| Evaporation 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 (represents the value for the density of chloroform 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 |
General description
Chloroform is a is a colorless, volatile chlorinated organic solvent whose vapors have narcotic effect.[7] 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.
GHS06, GHS08
Signal word Danger
Hazard statements H302-H315-H319-H331-H336-H351-H361d-H372
Precautionary statements P201-P261-P304 + P340 + P312-P305 + P351 + P338-P308 + P313-P403 + P233
RIDADR UN 1888 6.1 / PGIII
WGK Germany 3
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