Zhong Xuegao responded that the ice cream did not melt for a long time: the solids were high, and only a very small amount of food thickener was used
Time of Update: 2022-09-08
In this regard, Zhong Xuegao responded on the official WeChat public account, "There is no ice cream that does not melt, the solid is high, the water is small, and after complete melting, it is naturally viscous, and it will not completely spread out into a pool of water, and the solid cannot be turned into water no matter how it melts.
Inspection method of plaster
Time of Update: 2022-06-26
(2) Preparation of the sample ring: take the test sample and spread it in a constant temperature box at about 75℃ and soften it by slight heat (about 1 to 3 minutes), take it out, scrape off the paste, weigh 2 aliquots, 1.
Time of Update: 2022-06-04
Trans-Ethyl p-methoxycinnamateEthylp-methoxy-trans-cinnamate[Synonyms] ethyl p-methoxycinnamate , EMPC【Structural formula】 [Molecular formula and molecular weight] C 12 H 14 O 3 ; 206. 24[Source] Synt
Alkaline earth metal oxides and hydroxides
Time of Update: 2021-06-30
Alkaline earth metals burn in sufficient air, Be, Mg, Ca, and Sr all produce common oxides BeO, MgO, CaO, SrO; Ba produces peroxide BaO2 .
Alkaline earth metal peroxides can react with water or dilute acids to generate hydrogen peroxide H 2 O 2 .