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The preparation of calcium sulfate whisker CSW from waste PG could solve the large amounts of PG accumulation and substitute the plant based pulp fiber reducing the pollution of wastewater in paper and pulp industries In this work the CSW which length could reach 230 μm was fabricated from the PG in a glycerol water solution
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Chromium Sulphate is majorly used in the leather industry for tanning and processing It finds applications in the synthesis of other chromium based re tanning agents and production of chromic compound Additionally Basic Chromium Sulphate is used in dyeing of khaki cloth and in manufacture of chrome based dyestuffs Enquire Now
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Calcium sulfide is the chemical compound with the formula Ca white material crystallizes in cubes like rock salt CaS has been studied as a component in a process that would recycle gypsum a product of flue gas many salts containing sulfide ions CaS typically has an odour of H 2 S which results from small amount of this gas formed by hydrolysis of the salt
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Synthesis and modification of calcium sulfate nanoparticles Calcium sulfate nanoparticles were prepared following recent paper with moderate modification [ 26 ] First ml TritonX 114 was cast into 20 ml cyclohexane/ethanol mix solvents with ratio of 19 1 g calcium carbonate was thrown into the solvents and stirred vigorously for 30 min
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CaCO 3 was synthesized by rapid mixing of calcium chloride and sodium carbonate as previously described by our group [ 7 39 ] A typical procedure is as follows Na 2 CO 3 solution mol/L mL was poured slowly into the [C 4 mim] [C 12 SO 4] aqueous solution 80 mL with appropriate concentration under mild stirring
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Synthesis and application of calcium sulphate pigment for paper coating Potential and prospects Nitin Kumar 2024 Powder Technology Coating provides an excellent means of improving the aesthetic and printing properties of paper Coated paper is more uniform and more receptive to ink to get better results during the printing application
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Ullah A Facile synthesis and Synergistic effect of calcium sulfate fillers on the adhesive properties of bisphenol A DGEBA epoxy resin Mat Int 2024 2 Calcium sulfate a by product formed in the process of purification of lactic acid monomer and can be used for the modification of polylactic acid PLA
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Synthesis of calcium silicate hydrate C S H was conducted over the range of 50°C 90°C and C/S ratio of in the highly alkaline Na 2 O CaO SiO 2 H 2 O system for silicon utilization in high alumina fly ash Structural change in C S H formed in the highly alkaline system was investigated using XRD and 29 Si MAS NMR spectra
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Calcium phosphate/calcium sulphate composite powders were synthesized and characterized by SEM XRD and IR analysis The pH value was the preponderant parameter for the phase composition and morphology of the powders HAP with low crystallinity formed in the as synthesized powders at pH = 10 and pH = 7 but brushite formed at pH =
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Herein calcium sulfate has been successfully synthesized through a room temperature microemulsion method During the synthesis of nanosized calcium sulfate three different types of surfactants have also been studied in this work such as TritonX 114 SDBS and CTAB shown in Scheme 1
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the as prepared composite pellets were characterized and the results showed that the collagen fibrils acted as bridges to connect the adjacent calcium sulfate grains especially when there was a high mass loading of collagen which effectively depressed the rapid degradation of the pellets and improved compressive strength and the optimal …
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α Calcium Sulfate Hemihydrate Nanorods Synthesis A Method for Nanoparticle Preparation by Mesocrystallization α Calcium Sulfate Hemihydrate Nanorods Synthesis A Method for Nanoparticle Preparation by Mesocrystallization Langmuir 2024 Mar 7 33 9 2362 2369 doi / Epub 2024 Feb 20 Authors
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Synthesis of calcium sulphate and sodium sulphate from SHARMA et al SYNTHESIS OF CALCIUM SULPHATE AND SODIUM SULPHATE FROM WASTE SO 693 2 time period for absorption of SO 2 in NaOH solution there was a significant decrease in pH T able 1 For recovery of SO 2 temperature T able 2 should be lower 20 25 C
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In this paper we present the microwave assisted synthesis and characterization of alkaline nanomaterials for the preservation of cultural heritage Calcium and barium hydroxide
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The Reaction of Aluminum Sulfate and Calcium Carbonate By the moderate reaction of calcium carbonate and the concentrated solution of aluminum sulfate highly basic aluminum sulfate sol is easily obtained 2 Some kinds of the basic aluminum sulfate sol become gel on heating and the sol gel transformation is perfectly reversible at the neighbourhood of 40 50 C
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Calcium sulphate dihydrate is the chemical term for gypsum is its chemical formula It s used to cover walls ceilings and ornamental features with a protective and decorative finish It isn t possible to mould it into distinct forms Plaster of Paris is a man made substance that occurs naturally
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An efficient process to produce calcium thiosulfate CaS 2 O 3 from lime sulfur and oxygen is described By selecting appropriate process conditions such as mole ratios of lime to sulfur temperature and pressure of the reaction process and the oxidation conditions including rate and duration the concentration of byproducts in the resulting suspension can be reduced to about 2% by weight
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Calcium sulphate CaSO4 is a chemical compound made from calcium oxygen and sulphur The solid compound is inorganic with a molecular weight of /mol and a melting point of 2 660°F 1460°C Calcium sulphate is insolvent in water and most of the organic solvents The compound is also known as anhydrous gypsum
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Recovery of valuable metals and materials to the recycling of slag could be an urgent decision for solving this problem To turn into usable products slag leaching by hydrochloric acid reduces
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CH 4 H 2 O heat > CO 3H 2 small amount of CO2 Subsequently the carbon monoxide and steam are reacted using nickel as a catalyst to produce carbon dioxide and more hydrogen CO H 2
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In the context of constant growth in the utilization of the Li ion batteries there was a great surge in the quest for electrode materials and predominant usage that lead to the retiring of Li ion batteries This review focuses on the recent advances in the anode and cathode materials for the next generation Li ion batteries To achieve higher power and energy demands of Li ion batteries in
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The white crystalline product is almost pure methylhydrazine sulfate and contains very little hydrazine sulfate After drying in a vacuum desiccator over calcium chloride the yield is 105 110 g 76 80 per cent of the theoretical amount For purification the sulfate is dissolved in about 250 cc of boiling 80 per cent ethyl alcohol and
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during the hydrothermal synthesis process some dh the only phase of calcium sulfate in fgd gypsum firstly dissolves in aqueous releasing ca 2 and so 42 − ions and then when concentrations of ca 2 and so 42 − reach supersaturation hh nucleuses could be generated and gradually develop into needle like whisker because of the different growth …
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In this work we successfully synthesized nanofibers of calcium sulfate hemihydrate bassanite CaSO 4 · 2 O at 20 °C and 1 atm by mixing calcite and dilute sulfuric acid in methanol
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In this report we have evolved a new method to synthesize nanocrystalline calcium sulfate dihydrate gypsum via electrochemical oxidation This method provides a facile direct way of synthesizing nanocrystalline gypsum at room temperature Field emission scanning electron microscopy micrographs present an interesting phenomenon of formation of microcracks in the pellet during
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In this work anhydrous calcium sulfate whiskers were prepared from micron scale calcium carbonate through the microemulsion method One step synthesis of nanoscale anhydrous
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Calcium sulphate CaSO 4 one of biomaterial with high potential for dental and orthopedic applications due to its similarity to the mineral constituents of bone in the human body Three polymorphic forms of anhydrous CaSO 4 exist namely III CaSO 4 II CaSO 4 and I CaSO 4 which existed in ascending order of temperatures
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Synthesis of calcium sulphate as biomaterial AIP 21 09 2024 Calcium sulphate CaSO 4 one of biomaterial with high potential for dental and orthopedic applications due to its similarity to the mineral constituents of in the human body Three polymorphic forms of anhydrous CaSO 4 exist namely III
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The actual reaction process was that SQA took up dealcoholization and condensation reactions through the silyl groups on its structure and the hydroxyl units and gradually reacted on the surface of calcium sulfate The calcium sulfate also existed a continuous hydration reaction with water
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