[Product Name] Analysis of Benzene and Benzoic Acid Gas Chromatography - Produced by Tengzhou Zhongkepu

[Product Introduction]Benzoic acid (1,3,5-phenylbenzoic acid) is an important chemical intermediate [1], mainly used in the preparation of crosslinking agents for solid fuels in rocket boosters, aldehyde resins, water-soluble baking paints, high-performance plastic plasticizers, and reverse osmosis membrane materials for seawater desalination. With the rapid development of China's industry, its application scope in industry is constantly expanding. The liquid-phase catalytic oxidation process of benzene is commonly used in industry to prepare benzoic acid. Tengzhou Zhongkepu uses sulfuric acid methanolization to methylate benzoic acid, converting it into benzoic acid ester, and then uses gas chromatography to determine benzoic acid ester and benzene. Calculate the content of benzoic acid based on the ratio of substances in the reaction

Analysis spectrum:

Gas chromatograph for analysis of benzene and benzoic acidEquipment configuration and reagents

GC-2020 gas chromatographPerformance characteristics

1. Adopting320 x 240dot matrix5.7An inch large screen LCD Chinese display, real-time display of various temperatures and operating conditions, clear and intuitive content, truly realizing human-machine dialogue;
2Power on self-test, wide range self diagnostic function, can accurately determine the fault location and alarm;
3Six independent temperature controls (vaporization chamber and capillary vaporization chamber can be independently controlled), Five level program heating function;
4Overtemperature Protection function: If any circuit exceeds the set temperature, the instrument will automatically power off and sound an alarm;
5The vertical heating device of * makes sample vaporization more reliable, reduces the heat radiation generated in the vaporization chamber to the minimum, and ensures minimal temperature deviation inside the column box;
6Intelligent fuzzy control rear door opening system, automatically tracks temperature and dynamically adjusts The angle of the air door can achieve precise temperature control even near room temperature;
7Configure filling column head injection, glass lining injection, with diaphragm cleaning Functional capillary diversion/Non split injection device and capable of installing gas injectors;
8High precision dual stable gas path, capable of installing four types of detectors simultaneously;
9Optional electronic flow pressure display system with built-in workstation device.

Temperature control indicators
1.Temperature control range: room temperature 5℃～400℃ increment0.1℃
2.Temperature control accuracy: superior to±0.01℃

Program heating: Five step interval constant temperature time0～999minincrement0.1minTemperature increment0.1℃
Heating rate:200℃The biggest one below40℃/min200℃Up to the biggest20℃/min