CONSTITUTION:A phenol or alkylphenol of formula (A) (wherein R is hydrogen or alkyl group of 1-6 carbon number), sodium sulfanilate, etc., (B) and melamine (C) and water are compounded with desired proportions and adjusted to have pH7-8.5. This mixture is put in a reaction chamber ...
Hydration of Anhydrite:Gypsum can also form through the hydration of anhydrite (CaSO₄). Anhydrite is a calcium sulfate mineral that lacks the water molecules present in gypsum. When exposed to water, anhydrite undergoes a hydration reaction, incorporating water molecules into its structure and tran...
Molecular FormulaCaSO4 Physical and Chemical PropertiesChemical properties fibrous or needle-like single crystal. There are two kinds of whiskers, semi-aqueous and anhydrous. The semi-aqueous matter is hydrated when it comes into contact with water, losing fibrous and acicular shape, forming anhydrite...
The amount of water added to form the slurry is in excess of that needed to complete the hydration reaction. Some of the water that is added to the gypsum slurry is used to hydrate the calcined gypsum, also known as calcium sulfate hemihydrate, to form an interlocking matrix of calcium sul...
With a total investment of 350 million yuan, this initiative involved installing 12 integrated horizontal reaction kettles and establishing a cutting-edge DCS control center. This technological marvel automates the entire process, from feeding and metering to temperature and pressur...
13a) are smaller in size, longer in length and diameter, heavily agglomerated, and with more impurities on the surface. It can be assumed that some impurities in the PG raw ore accelerate the crystal transformation in the hydrothermal reaction, thus limiting the crystal size, and the smaller ...
Provided is a recycling method for producing calcite and ammonium sulfate having a high purity of at least 95% and generated by means of a carbonation reaction for fixing carbon dio
二水石膏(Twowatergypsum) Twowatergypsum Tohelpedittheencyclopediabusinesscardtwo,themolecularformulaforgypsumisCaS042H20.Itcanbeseenthatitschemicalstructureiscalciumsulfatecrystalswithtwocrystallinewater.Indifferentconditionsofheatingtreatment,thestructureofwatereasilyout,becomeavarietyofcrystalsofhemihydrategypsumandanhydr...
The molecular formula of the dicalcium phosphate is CaHPO4·2H2O. The molecular weight is 172.09. It becomes loose white powder crystal when dried. The density is 800-1100kg/m3. It is neutral in PH, soluble in weak acid and is slightly soluble in water with little moisture absorbing capab...
With a total investment of 350 million yuan, this initiative involved installing 12 integrated horizontal reaction kettles and establishing a cutting-edge DCS control center. This technological marvel automates the entire process, from feeding ...