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(91) A route suitable for industrial production of secnidazole was improved, in which boron trifluoride etherate was used in replacing sulfuric acid as the catalyst.

(92) The treatment of the waste acid was discussed from sulfuric acid alkylation plant, and it was utilized to produce active clay.

(93) In the system of sulfuric acid phenylglycollic acid cinchonine potassium chlorate, micro amount of tungsten in ammonium molybdate products has been determined by catalytic polarography.

(94) In addition, the effects of temperature and concentration of sulfuric acid on the concentration of LA and 5-hydroxymethyl furfural (HMF) were shown.

(95) Hole forming in the cooling bundles of the fluidizedroaster in sulfuric acid plant is very harmful.

(96) By experiment we state the best sulfuric acid concentration, align of reactant , temperature and acid - base degree.

(97) It is reported that hard alloy scrap is treated by electroosmosis and electrolysis together taking sulfuric acid as electrolyte in order to recover cobalt metal and Tungsten Carbide.

(98) This process soaks the solution made up of copperas, sulfuric acid, manganese sulfate at the at the temperature of 40 - 60degrees for 1 - 8 hours.

(99) The reaction of iron with sulfuric acid is a case of replacement.

(100) The oxidation of thymol peroxide in sulfuric acid medium using Fecatalyst was investigated in this paper.

(101) The experiment uses sodium hydroxide, sulfuric acid, nickel carbonate to deal with wasted nickel catalyst.

(102) Sulfonated EPDM ionomers ( S - EPDM ) were prepared with concentrated sulfuric acid and acetic anhydride.

(103) Estazolam reacts with sulfuric acid to form an intense fluorescent substance.

(104) The influences of temperature,[http://sentencedict.com/sulfuric acid.html] concentration of sulfuric acid and time on the reaction were studied. The optimum conditions of reaction were obtained.

(105) It is formed by the reaction of cellulose with ethanoic acid using sulfuric acid as catalyst.

(106) This paper introduced a manufacturing process of manganese sulfate with titanium white waste sulfuric acid, and good environmental and economic benefit were obtained.

(107) The content of polysaccharide in Pleurotus Nebrodensis was determined by phenol - sulfuric acid spectrophotometry at 485 nm.

(108) Effect of active addition agent and ultrasonic on reaction kinetics of phosphate rock and sulfuric acid in the single superphosphate ( SSP ) process are studied.

(109) The coagulation test of SBR-1712 latex, by using the TXD-63 ( polymeric flocculant ) and sulfuric acid system was carried out on a 10 kt SBR commercial plant.

(110) A new technique employing modified zirconium oxide to replace the concentrated sulfuric acid as catalyst in synthesis butyl lactate is studied. The result is satisfied. The yield rate reaches 85%.

(111) The colorimetry of sulfuric acid and p-Dimethylaminobenzaldehyde used to determinate the fusel oil of alcoholic liquor, but it occurs deviation.

(112) The role of liquid sealing in chemical industry is expounded. Then the modification and operation to some equipment of ammonium phosphate and sulfuric acid in the company are introduced.

(113) Methods: Determining lipopolysaccharide and phosphatide contents through phenol hydrate - sulfuric acid and molybdenum blue colorimetric method.

(114) The main processes of bisphenol-A including sulfuric acid process , hydrogen chloride process and ion-exchange resin process are briefly introduced .

(115) N-octyl bromide was synthesized by hydrobromic method in which took n-octanol and industrial waste hydrobromic acid(48%) as materials, concentrated sulfuric acid as a catalyst.

(116) After reduction , manganese is extracted by sulfuric acid and high purity manganese carbonate is obtained after impurity removal from the solution and reaction with ammonium carbonate.

(117) Ahab's alloy is a high ni high molybdenum alloys, in nitric acid chromic acid, sulfuric acid etc oxidizing acids has good corrosion resistance.

(118) Poly(vinyl alcohol)(PVA)-based polyanion was prepared by esterification of PVA with sulfuric acid.

(119) Unreacted calcium oxide or calcium carbonate generates sufficient heat to the endothermic reaction between calcium fluoride and sulfuric acid so that no external heat is needed.

(120) Bromination of 4-nitroaniline with hydrobromic Acid and hydrogen peroxide as brominating agent in dilute sulfuric acid was studied.