PICROLONIC ACID NEW

Product Description

Appearance and properties: black orange to yellow powder

Density: 1.65g /cm3

Boiling point: 548.8ºC at 760 mmHg

Melting point: 119 °C

Flash point: 285.7ºC

Refractive index: 1.714

Storage condition: Refrigerator (+4ºC)

Production method

1-phenyl-3-methyl-2-pyrazole-5-one is first nitrated at no more than 15 ° C and then refined. The process is:

1. After nitrification, filtration, dilute pickling, and water washing, proceed to the next step immediately;

2. It is hydrolyzed at 50 ~ %℃ in 33% acetic acid, and filtered and washed after hydrolysis;

3. Turn into sodium salt, add sodium carbonate in ethanol and neutralize until the litmus is alkaline, then refine it with water and acidify it with hydrochloric acid to obtain crude product;

4. The finished product is crystallized with ethanol.

Use

1. Can be used as a variety of alkaloids, tryptophan, phenylalanine identification reagent, can also be used to determine strontium, thorium, magnesium, lead and so on.

2. Used as an analytical reagent. Reagents for preparing liquid film electrodes for the determination of atropine and brucine in pharmaceuticals.

3.This chemical can be used to test alkaloids, Tryptophan, Phenylalanine. It is also used to test strontium, thorium, magnesium and lead. Similarly, it can be used as analytical reagent.

Company Profile

Hebei yanxi chemical co.,Itd is a professional research and development of the production of lead acetate,2-phenylethylamide enterprises.The key members of the company are established by local well-known entrepreneurs and professional engineers under the call and support of the party's"low-carbon environmental protectionsafety and stability"under the innovation in traditional production equipment and technology,the use of"high temperature cooling"and "plastic basin crystallization"technology,on the basis of reducing the cost of products to make the quality of products to the same industryWith the efforts of all the staff of the companywe have established many cooperative companies in Shan Dong,He Nan,Guang Dong and other places in recent decades. Under the close supervision of the quality inspection department of the company,we carry out production and sales in the way of "labeling",providing the most convenient and fastest service for users all over the countryCompanies in the"advance with The Timesand the city every day with the advancement of"under the guidance of the core ideasadhering to the"relying on scientific and technological innovationthe development of circular economy" of the enterprise purpose,established in the marketenhance strength,go the way of science and environmental sustainable developmentrelying on the national technology research and development center, increasing spending on research and development based on the domestic market, expand the international marketmanufacturing high quality productssincere service society,toward a modern, ecology, science and technologychemical enterprises of the world.