The preparation of an ammonium carbonate and magnesium in the industrial purposesURBAIN EDOUARD
A preparation method of nanometer zinc oxide is introduced,in which zinc sulfate and ammonium carbonate(or ammonium bicarbonate and ammonium water) are as raw materials,the basic zinc carbonate is prepared through neutrallzation reaction,then the basic zinc carbonate obtained is washed by water to ...
用碳酸氢铵作沉淀剂制取碳酸钕和氧化钕(Preparationofneodymiumcarbonateandneodymiumoxidebyusingammoniumbicarbonateasprecipitant)Thetwenty-firstvolumesixthissueofrareearthVol.21,No.6InDecember2000ChineseRareEarthsDecember2000Thetwenty-firstvolumesixthissueofrareearthVol.21,No.6InDecember2000ChineseRareEarthsDecember2000...
The famous company (formerly Erachem Europe Sedema Belgium company) is the world's production of chemical manganese oxide 2 the largest companies in the manganese amino acid formic acid ammonium carbonate legal system response to manganese, manganese carbonate produced 2 thermal decomposition method ...
Disclosed are an antiviral compound and a use thereof in the preparation of a medicament for the treatment of virus infections. Specifically, the present invention relates an imidaz
The esterification modification of cellulose can also be used for the adsorption of heavy metal ions. Choi et al. [143] reported the use of cellulose acetate (CA) and ammonium thioglycolate (AMTG) to prepare sulfhydryl functionalized (3,3’–dithiodipropionate) by electrospinning nanocellulose and,...
In this study, hydromagnesite, a rare natural hydrated alkaline magnesium carbonate, was used to synthesize magnesium hydroxide (MH) as a flame retardant for ethylene-vinyl acetate (EVA) to enhance its fire resistance and smoke suppression. Various concentrations of sodium hydroxide (NaOH) were used...
[0031] Compounds of formula I wherein Z is of formula II or Ila are most preferably in salt form. Preferred salt-forming cations are those free from centers of asymmetry espedally e.g. sodium, potasslum or ammonium most preferably sodium. ...
When Z is --NO2, the reaction of the compounds of formulae II and III is preferably effected in the presence of a base selected from the group consisting of secondary or tertiary amines, quaternary ammonium hydroxides and alkali metal carbonates. An example of a preferred tertiary amine is ...
A method for the preparation of ammonium carbonate from ammonia waterKOEPPEL DR.-ING. DR. PHIL. KLAUS