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(121) The nitrile ( II ) ( 28 g ) was mixed with 26 ml of concentrated sulfuric acid.

(122) The content of polysaccharide in Lycium barbarum extract was measured by phenol - sulfuric acid method.

(123) This invention relates to a process for preparing an oil-soluble plugging agent for oil well-drilling liq. , in which sulfuric acid is used as a reactant to treat acid sludge.

(124) As a comparison, the pouring point of sulfuric acid and then nothing?

(125) In the determination of total nitrogen in water sample by flow injection analysis instrument, the concentration of sulfuric acid which used for the preservation of sample affected the result.

(126) Other materials, such as sulfuric acid, caustic soda and ethanediol, can be purchased form the factory nearby.

(127) This paper studies the effects of the sulfuric acid anodizing and chromic acid anodizing on the fatigue strength in the intermediate value life zone of LY12CZ plate and LC9CS bar .

(128) The effects of the concentration of sulfuric acid, ratio of solid to liquid, temperature and time on leaching efficiency were investigated.

(129) The extracting iron from pyrite cinder by reductive roasting and sulfuric acid leaching was investigated.

(130) In the sulfuric acid production, the refractory lining materials in the fluidized bed furnace is lined with the firebrick, which is difficult for construction and maintenance, and its cost is high.

(131) Benzyl bromide was synthesized from potassium bromide, a by-product from synthesis of 2-hydroxy-4-n-octyloxybenzophenone(UV-531), and benzoic alcohol in the presence of concentrated sulfuric acid.

(132) The essay use the way scrap iron react with sulfuric acid, then adding oxidant - ammonium peroxydisulfate.sentencedict.com

(133) This paper narrates the effect and the demand of titanium liquid filter aid; and introduces the use of diatom earth filter aid in the manufacture of titanium white by sulfuric acid method.

(134) This settlement is the third nationwide compliance agreement in a Clean Air Act initiative under which DOJ and EPA expect to reach similar agreements with other sulfuric acid manufacturers.

(135) Phosphate rock is mixted with sulfuric acid and with revycled first - wash acid in a premixer.

(136) Dropped hydrochloric acid or sulfuric acid to acetone oxime, solid hydroxylamine could get.

(137) From the reaction of Zinc and Sulfuric acid, this artide describes the matter of the reaction and advances that the Overpotential is mostly factor of these reactions.

(138) By exploring the properties of more potential solvents, such as sulfuric acid and formamide, the researchers hope to expand the potential life-supporting zone.

(139) Organo mineral compound fertilizers are digested with sulfuric acid hydrogen peroxide and nitric acid perchloric acid, respectively, and then their total potassium content is determined.

(140) The effects of the amount of sulfuric acid solution, the amount of potassium iodide solution and quiescent time after extraction were investigated.

(141) Present a kind of application of recursive identification and adaptive control to sulfuric acid process.

(142) Sugar, sulfuric acid, diamonds, and oil all follow different routes, but each navigates a web that touches various machines and may even cycle around again to its elemental form.

(143) Methods Xanthydrol coloring method, sulfuric acid coloring method, and HPLC method were developed for determination of the release of dirithromycin enteric-coated tablets.

(144) Common acidic agents in chemical burns include sulfuric acid found in car batteries, sulfurous acid found in bleach, and hydrochloric acid used in swimming pools.

(145) The problem of fiber demister blocked by sublimed sulfur and oil smoke appears in the production of sulfuric acid from sulfur-burning easily.

(146) By contrast the traditional zinc oxide catalyst and from the point of preparation cost, we decide use sulfuric acid activated solid superacid as synthesis catalyst.

(147) The effect of activation porous agent on reaction process of phosphate rock acidulated by sulfuric acid was studied.

(148) Sphalerite was oxidized and leached by manganese ore in acidic condition(sulfuric acid system), lixivium of which was used to extract indium and separate iron.

(149) With contrast experiments, this paper discussed the influence of dosage of phenol and concentration of sulfuric acid on the results.

(150) Diglycol diacetate had been obtained with sulfuric acid or toluene - p - sulfonic acid as catalyst in lab.