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Determination of cation exchange capacity of forest soil by ammonium acetate exchange method (1)
Time of Update: 2022-02-15
Second, the principle of the methodThe cation exchange capacity of acidic and neutral forest soils is determined by the 1mol/L ammonium acetate exchange method.
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Determination of cation exchange capacity of forest soil by ammonium acetate exchange method (2)
Time of Update: 2022-02-15
for the Determination of Soil Dry Matter and Moisture" (HJ613-2001),>(2) Treatment process of acid and neutral soil samples>Weigh 2. 0g of air-dried sample with 2mm mesh, put
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lignocellulosic material for oil-water separation based on addition reaction
Time of Update: 2021-09-28
time, the wood fiber compost containing melamine resin can provide the required nutrients for plant growth without any toxic effects (J. Hazard. Mater. , 2012, 243, 28; Environment. Pollut. , 2012, 162, 129
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Supercritical water oxidation principle and reaction mechanism
Time of Update: 2021-06-19
The more typical reaction mechanism of supercritical water oxidation is free radical reaction theory .
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The nature and chemical reaction of supercritical water
Time of Update: 2021-06-19
The important characteristic of supercritical fluid is that its phase state, solubility, dielectric constant, ion product and other physical properties can be controlled by adjusting temperature and pressure .
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The Detection of Enteroviruses in Water and Associated Materials Using the Polymerase Chain Reaction
Time of Update: 2021-02-01
by infectivity assay, the use of a rapid test to screen out negative samples prior to analysis for infectious virus by cell culture makes the testing process more efficient in time and cost.
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Low-VOC water-based metal pigment anti-settling and orientation aid: modified ethylene-vinyl acetate copolymer emulsion
Time of Update: 2020-11-01
, as well as the construction of medium to high shear viscosity, so that the coating has easy to operate, anti-flow hanging, anti-splash, anti-sinking and better paint film appearance and other applications. Sometimes a paint product needs to have
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Low-VOC water-based metal pigment anti-settling and orientation aid: modified ethylene-vinyl acetate copolymer emulsion
Time of Update: 2020-11-01
, as well as the construction of medium to high shear viscosity, so that the coating has easy to operate, anti-flow hanging, anti-splash, anti-sinking and better paint film appearance and other applications. Sometimes a paint product needs to have
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Coating technology: water paint -- Polyvinyl acetate emulsion paint formulation and production process
Time of Update: 2020-04-03
Core tip: as a new type of architectural paint, water paint is more and more used in home decoration.
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by multicomponent reactions of aromatic ketones, aldehydes and ammonium salts without transition metals
Time of Update: 2019-10-14
Recently, Deng Guojun, Professor of the school of chemistry, Xiangtan University, selected pyrimidine and pyridine compounds from aromatic aldehydes and ketones, aldehydes and ammonium salts without transition metals.
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hydrogen production technology with high safety and economy by aluminum water reaction triggered by liquid metal
Time of Update: 2019-07-04
International Journal of hydrogen energy, 2016, 41, 1453-1459), and studied the effect of different binary gallium based alloys on the hydrogen production performance of triggering aluminum water reaction (Tan s.c., et al.
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Angelw: Ru (II) catalyzes the series reaction of C-H Allylation and [3 + 2] dipolar cycloaddition of allylic acetals
Time of Update: 2019-05-21
Azomethionine imines have been widely used in cycloaddition reactions with various coupling agents such as alkenes, alkynes and allylites
In addition, in the C-H
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Angelw: cobalt catalyzed cross coupling reaction of alkenyl acetate with aryl or alkenyl zinc reagents
Time of Update: 2018-07-16
Recently, the research group of Professor Paul knockel of the University of Munich in Germany reported a kind of cross coupling reaction of alkenyl acetate with aryl or alkenyl zinc reagents catalyzed by cobalt in the international authoritative magazine, angelw.
