hydroquinone造句
1. But hydrogen peroxide and hydroquinone don't react violently together unless a catalyst is added.
2. I poured the hydrogen peroxide into the hydroquinone, and absolutely nothing happened.
3. The hydroquinone titrimetric method is employed for gold determination.
4. Method for preparing 2,3,5-trimethyl hydroquinone diester.
5. The main intermediates during the phenol degradation are hydroquinone, catechol, resorcinol, benzoquinone, maleic acid, fumaric acid and oxalic acid.
6. Antioxidant tertiary butyl hydroquinone was prepared by hydroquinone and tertiary butyl alcohol.
7. To investigate the biotransformation of hydroquinone by cell suspension cultures of Datura stramonium.
8. Starting from hydroquinone, sodium 2, 5 -dihydroxy-4 - dodecylbenzene sulphonate was prepared by acylation, reduction and sulfonation in sequence. The reaction conditions were researched.
9. The simultaneous analysis conditions of phenol, hydroquinone, hydroxyphenol and odi-hydroxybenzene mixture by HPLC were discussed.
10. In this work, the 4-methoxyphenol was prepared from hydroquinone, methanol which were catalyzed by benzoquinone and concentrated sulphuric acid. The yield of 4-methoxyphenol was 80%.
11. The CV redox peak with fixed hydroquinone was larger than that without fixed hydroquinone.
12. Market prospect and production methods for pyrocatechol and hydroquinone are reviewed.
13. Hydroquinone and hydrogen peroxide build up in the insect's abdomen.
14. Hydroquinone is an important chemical material and intermediate in industrial chemistry.
15. Hydroquinone ( HQ ) is a chemical found in most oer - the - counter skin - lightening products sold in the US.
16. Using hydroquinone and benzyl chloride as raw materials, N, N-dimethyl formamide(DMF) as solvent, hydroquinone monobenzyl ether was synthesized by microwave radiation.
17. A biochemist colleague has kindly provided me with a bottle of hydrogen peroxide, and enough hydroquinone for 50 bombardier beetles.
18. The HPLC analysis results indicate that the products of photocatalytic degradation of phenol solution include hydroquinone, catechol, benzoquinone, maleic acid, fumaric acid and so on.
19. Using the orthogonal test , the synthesis of pyrocatechol and hydroquinone by catalytic oxidation of phenol by inorganic salts has studied.
20. The results show that it is inefficient to use diisopropyl ether as extractant to extract hydroquinone from water isothermally.
21. The analysis method for biuret content in long-efficacy urea using hydroquinone as an additive is studied and tested.
22. The modified electrode can be applied to the electrochemical determination of catechol and hydroquinone.
23. To meet the usual customer requirements, final product acrylonitrile is stabilized with hydroquinone monomethyl ether.
24. A method for the synthesis of new reagent 2,3,7 trihydroxy 9 (2,4 dihydroxy) phenylfluorone (DHPF) was introduced with hydroquinone and 2,4 dihydroxybenzaldehyde as basic material.
25. This enzyme could quickly catalyze the oxidation of pyrogallic acid as a substrate, but exhibited relatively low catalysis activity towards catechol, hydroquinone and resorcinol.
26. Product effect: The Biology Unallergic Black Cream is the latest dying article, which is out of the hydroquinone etc. as to be allergic, cancerous, and hurtless to the body.
27. A process for the synthesis of dibutyl itaconate had been studied by using itaconic acid and butanol as starting materials and hydroquinone as the anti-polymerizing agent in this paper.
28. Research and development for fhe production of pyrocatechol and hydroquinone by reaction of phenol with hydrogen peroxide and percarboxylic acid as hydroxylating reagent are introduced.
29. With ethyl alcohol as solvent and sodium iodide as catalyst, 1,4-dibutoxybenzene was synthesized from metal sodium, hydroquinone and n-butyl bromide.
30. The CAWs , graphite and mineral oil were directly mixed to make the CAW modified carbon paste electrode and the electrocatalysis of the modified electrode to hydroquinone was studied.
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