Toluene test performance list and test method

Toluene is a colorless transparent liquid with chemical formula C8H10. It is one of the isomers of benzene and has an aromatic taste. Toluene is widely used as solvent, raw material and reaction intermediate, often used in the production of plastics, resins, dyes, pharmaceuticals, etc.

Toluene (methylbenzene) is a commonly used organic solvent, which is mainly used in coatings, printing inks, glue, plastics and other industries. Its main properties include physical properties, chemical properties, environmental properties and toxicological properties.

Performance of detection
The following is a table of some important properties of toluene and their testing methods:

PerformanceDescriptionMethod of detection
Relative densityAt room temperature, the relative density of toluene is 0.87-0.89Determination by gravimetric method
Index of refractionAt room temperature, the refractive index of toluene is 1.496-1.498Determination by refractive method
Water contentThe lower the moisture content, the better the quality of tolueneDetermination by water titration
Degree of acidityExcessive acidity can cause toluene to deteriorateDetermination by acid-base titration
Oxide oxideThe content of the oxide affects the quality of tolueneDetermination by iodometry
residueHigh levels of residues can cause toluene to deteriorateDetermination by distillation
Degree of solubilitySolubility of toluene with other substancesDetermination by gravimetry or gas chromatography
ToxicologyIncluding acute toxicity, chronic toxicity, mutagenicity, carcinogenicity, etcAnimal experiments or in vitro cell experiments

Toluene test performance list and test method

These properties can be tested by different experimental methods, such as gravimetry, refractometry, titration, iodometry, distillation, specific gravity, gas chromatography, animal experiments or in vitro cell experiments. These methods need to carry out strict experimental control to ensure the accuracy and reliability of the detection results.

Method of detection
The main detection methods of toluene include physical detection and chemical detection.

Physical testing includes:

The concentration of toluene in air can be measured by gas chromatograph after air sampling.

Toluene in liquid and solid can be detected by chromatography;

In the workplace, combustible gas detectors and other field detection instruments can be used for rapid detection.

Toluene test performance list and test method

Chemical testing includes:

Toluene can be separated and purified by extraction, distillation, chromatography and other methods for quality determination.

Toluene in water can be detected by gas chromatography or liquid chromatography.

We remind you: different toluene samples may need to use different detection methods, specific detection methods should be selected according to the actual situation and requirements.

Share this post