propionic acid造句
1, A salt or an ester of propionic acid.
2, Lower lever of lactic acid and propionic acid had little effect on the ensilage fermentation of Italian ryegrass.
3, The pretreatment process of propionic acid fermented broth by hollow - fiber membrane was investigated.
4, These two groups both breathe-in propionic acid aerosol for three months and took procaterol tablet orally in need.
5, The esterification reaction of propionic acid with n-pentanol was studied by using novel aluminophosphate and silicoaluminophosphate molecular sieves as catalysts.
6, An coupling bioprocess for in situ propionic acid recovery coupled with fermentation of vitamin B12 was established based on this technology.
7, Catalytic esterification reaction of propionic acid with ethyl alcohol by copper p - toluene sulfonate has been studied.
8, Propionic acid is product heavily short of in our country.
9, The vapor association of acetic acid and propionic acid due to dimerization and trimerization has been considered as well.
10, Most of the specimens containing acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, lactic acid and succinic acid which were accorded with the result of bacteriologic study.
11, Propionic acid and its derivatives are widely used and imported every year in China.
12, The water - based polyurethane adhesives were made with the basic raw material of polyetherdi-ol, toluene diisocyanate and dihydroxylmethyl propionic acid.
13, An aqueous polyurethane emulsion adhesive was prepared from epoxy resin, toluene diisocyanate (TDI) and dimethylol propionic acid (DMPA). The product structure was characterized by infrared spectrum.
14, Waterborne polyurethane resin is prepared by alcoholyzing oil with polyol at first, and then reacting with polyether (polyester), dimethylol propionic acid, diisocyanate.
15, In the experiment, ethyl propionate was synthesized by reaction of propionic acid with absolute ethyl alcohol in the presence ofp-Toluene sulfonic acid.
16, Starting from toluene diisocyanate (TDI), polypropylene glycol (PPG) and dimethylol propionic acid (DMPA), the anionic water-borne polyurethane emulsion was synthesized.
17, Among these products the production of propanal, propanol and propionic acid remains almost a blank in China.
18, In VFA, aluminum compounds have more serious inhibitation to acid and butyric acid contrasting propionic acid.
19, A series of aqueous polyurethane dispersions were synthesized from the polyester polyol, isophorone diisocyanate(IPDI) and dimethylol propionic acid(DMPA) by neutralization emulsification method.
20, OBJECTIVE To investigate the major metabolites of eugenol ibuprofen ester propionic acid.
21, By using sodium hydrogen sulfate as the catalyst , benzyl alcohol and propionic acid reacted to propionate.
22, The suitable stem and leaf treatment was sethoxydim and aryloxy-phenoxy propionic acid herbicides.
23, Improved synthesis of 2 - ( 4 - bromomethylphenyl ) propionic acid, the key intermediate for loxoprofen sodium, was investigated.
24, A series of polyurethane anionomers were synthesized from isophorone diisocyanate, polyneopentanediol adipate and dimethanol propionic acid (DMPA).
25, Benzyl propionate was synthesized by the esterification reaction of benzyl alcohol with propionic acid using potassium bisulfate.
26, By using sodium hydrogen sulfate as the catalyst, benzyl alcohol and propionic acid reacted to form benzyl propionate.