This article described how to determine the content of chloride in the industry potassium hydroxide with the mercuric thiocyanide spectrophotometric method .
In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.
Select the system of copolymerisation,the optimum reactive conditions of temperature and velocity,and the best quantity of emolsifier and initiator of acrylate emulsion thickener.
The vulcanization characteristics of a silicone rubber foam made by technology of removing inert filler used as foaming agent was investigated with curometer.
Conclusion The combined administration of dolantin and rotundine has significant synergistic action of analgesia, with reduced dose of dolantin and decreased incidence of addiction.
The effects of reactant ratio, reaction time, catalyst amount,the species and amount of deaquation reagent on the yield of benzaldehyde 1,3-butanediol acetal were investigated.
Furthermore, N and P fertilizer application rate could be decreased accordingly to optimize fertilizer management when contributions from eutrophied irrigation water were taken into consideration.
The effects of the catalyst dosage and the preparation conditions of HZ-1 zeolite,for example, number of exchange times on the benzoylation of toluene were studied.
Using the guantum mechanics method to describe the electronically nonadiabatic transition, the equation of the motion of the nonadiabatic transition probability amplitutes have been derived.