Ethylene glycol monobutyl ether, also known as ethylene glycol monobutyl ether dioxide or 1,4-butanediol monobutyl ether, is an organic compound with a chemical formula of C8H18O3 and is a colorless, transparent, sweet-smelling liquid. Ethylene glycol monobutyl ether has good solubility and surface activity, and is widely used in various applications in industry and daily life, for example, as a cleaning agent, as a thinner in paints, paints and inks, in the manufacture of plastics and resins, as a refrigerant, etc. In addition, ethylene glycol monobutyl ether can also be used in fields such as medicine, agriculture and cosmetics. ''
Detection performance
Ethylene glycol monobutyl ether is an important organic solvent, and the following performance parameters need to be tested, which are very important for the production and use of ethylene glycol monobutyl ether. The following is a simple table listing:
| performance parameter | Test Methods |
|---|---|
| Relative density | Measure the density of ethylene glycol monobutyl ether at a certain temperature and divide it by the density of water |
| Refractive index | Measuring how much light is refracted when passing through ethylene glycol monobutyl ether |
| melting point and boiling point | Measuring the Melting and Boiling Points of Ethylene Glycol Monobutyl Ether |
| water content | Measuring Water Content in Ethylene Glycol Monobutyl Ether Using the Karl Fischer Method |
| acid value | Measuring the Acidity of Ethylene Glycol Monobutyl Ether Using Acid-Base Titration |
| Solubility | Test the solubility of ethylene glycol monobutyl ether in various solvents at different temperatures |
| stability | Testing the stability and degradation performance of ethylene glycol monobutyl ether under different environmental conditions |
Beichao reminds you: These are just some common test methods. In fact, there may be other parameters and test methods for performance testing of ethylene glycol monobutyl ether.
Detection method
The following is a detailed description of the detection methods for the performance parameters of ethylene glycol monobutyl ether:
Relative density: Put the ethylene glycol monobutyl ether sample in a pycnometer of known weight, measure the total mass of the ethylene glycol monobutyl ether and water mixed liquid in the pycnometer, and then measure the mass of water in the pycnometer, and the relative density can be calculated from the total mass and the mass of water.
Refractive index: drop the ethylene glycol monobutyl ether sample into a solution of known refractive index, use a refractometer to measure the degree of light refraction in the ethylene glycol monobutyl ether sample, and then calculate the refractive index of the ethylene glycol monobutyl ether.
Melting point and boiling point: Use a melting point apparatus or boiling point apparatus to measure the melting point and boiling point of ethylene glycol monobutyl ether under standard atmospheric pressure.
Water content: use the Karl Fischer method to convert the water in ethylene glycol monobutyl ether into carbon dioxide and water through a catalytic reaction, and then use an electronic balance to measure the mass of the reacted carbon dioxide to calculate the water content in ethylene glycol monobutyl ether.
Acid value: Use the acid-base titration method to drop the ethylene glycol monobutyl ether sample into the alkali solution of known concentration until the neutral point appears in the solution, record the required titration, and then calculate the acid value of the ethylene glycol monobutyl ether.
Solubility: Mix ethylene glycol monobutyl ether samples with various solvents and stir to observe whether ethylene glycol monobutyl ether can be dissolved in the solvent, so as to evaluate the solubility of ethylene glycol monobutyl ether.
Stability: Expose ethylene glycol monobutyl ether samples to different environmental conditions, such as high temperature, high humidity, sunlight exposure, etc., to observe whether ethylene glycol monobutyl ether changes, and perform corresponding chemical analysis to evaluate the stability and degradation performance of ethylene glycol monobutyl ether.
Beichao reminds you: Different performance parameters may require different testing equipment and methods, and some tests may require professional laboratories or professional technicians to complete. At the same time, for some performance parameters, it is also necessary to follow relevant standards and specifications, such as ASTM (American Society for Testing and Materials) or ISO (International Organization for Standardization), to ensure the accuracy and reliability of the test. In addition, different countries or regions may have different performance testing methods for ethylene glycol monobutyl ether, and specific testing methods should refer to local standards and regulations.
