On May 6th, it was learned from the Advanced Technology Research Institute of China University of Science and Technology that the “Variable Volatile Monitoring and Alarming Device for Buses†developed by the Special Sensors R&D Center of the Institute recently passed the provincial new product appraisal and filled the monitoring of flammable products in domestic public transport vehicles. Whitespace. At present, this device has been tested on several bus lines of Hefei Bus Group. After nearly two months of operation, the performance is reliable and stable, and the response is good.
Organic acids refer to some organic
compounds that are acidic. The most common organic acid is carboxylic acid
(R-COOH), which derives its acidity from carboxyl (-COOH). Sulfonic acid
(R-SO3H), sulfonic acid (R-SOOH), thiocyboxylic acid (R-SH) and so on are also
organic acids.
Organic acids include natural organic acids and synthetic organic acids. Natural organic acids are mainly extracted and isolated from plants or agricultural and sideline products in nature to obtain organic acids with certain physiological activity, while synthetic organic acids are organic acids obtained by chemical synthesis, enzyme catalysis and microbial fermentation. Natural organic acids are widely distributed in the leaves, roots and especially fruits of Chinese herbal medicines and fruits, such as wumei, schisandra, raspberry, etc., and citric acid, malic acid, tartaric acid and quinine acid are mostly in green plums. Common methods for synthesizing organic acids include the production of citric acid by aspergillus niger fermentation and the production of malic acid by immobilized cell technology.
Carboxylic Acid,Organic Acids, Acidic Organic Compound,Example For Organic Acid WUHAN RUISUNNY CHEMICAL CO. LTD , https://www.ruisunny-chem.com
The “bus flammable volatile monitoring and alarm device†adopts the high-end sensor developed by the scientific researcher to accurately detect the flammable molecules such as alcohol, gasoline, banana water and pine perfume. Responsive, with low cost, stable performance, quick response, easy operation, reliable quality, etc., can not only replace the security personnel to achieve rapid security inspection of the goods carried on the vehicle, but also real-time online monitoring of the personnel and carrying items on the vehicle. To achieve full coverage of monitoring during vehicle operation, the overall technology has reached the domestic leading level. It is reported that on the basis of trial use in Hefei, Anhui, the product will be promoted and applied in the province and even the country in the future.
Organic acids can be reacted with alcohols to form esters. Carboxylic acids are functional groups of carboxylic acids, which, in addition to formic acid (H-COOH), can be seen as derivatives of hydrogen atoms in hydrocarbon molecules that have been replaced by carboxyl groups. Can be expressed in the general formula (Ar) R-COOH. Carboxylic acids are often widely present in nature in the form of free states or in the form of salts and esters. The hydrogen atoms on the hydrocarbon group in the carboxylic acid molecule are substituted by other atoms or atomic groups of derivatives called substituted carboxylic acids. Important substituted carboxylic acids include halogenated acids, hydroxy acids, ketoacids and amino acids. Some of these compounds are involved in the metabolism of animals and plants, some are intermediate products of metabolism, some have significant biological activity, can prevent diseases and cure diseases, and some are raw materials for organic synthesis, industrial and agricultural production and pharmaceutical industry.