| 单词 | bleaching powder |
| 例句 | In 2011, the discovery of sprouts drenched in hormones, bleaching powder and preservatives in Shenyang, Liaoning Province, resulted in the arrests of 12 people. Bean Sprouts Tainted With Banned Additive Are Again Found in China 2014-11-26T05:00:00Z Chemistry again went to work, and finally obtained the chloride of lime, which is the universal bleaching powder of modern manufactures. Knowledge is Power: A View of the Productive Forces of Modern Society and the Results of Labor, Capital and Skill. 2011-12-24T03:08:00.833Z There have also been introduced processes in which the chlorine is generated in the chloridizing vat, the reagents used being dilute solutions of bleaching powder and an acid. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z C. Disinfection by Chloride of Lime.—Chloride of lime, or bleaching powder, is the most powerful, the cheapest and most easily managed of all artificial disinfectants. On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment 2011-06-24T02:00:18.093Z The excretions of the bowels or kidneys should be treated with bleaching powder. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z There is thus precipitated on the fibre manganous hydrate, which by a short passage into a cold dilute solution of bleaching powder is oxidized and converted into the brown manganic hydrate. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z This operation, which is peculiar to linen bleaching, consists in suspending the hanks from a square roller into bleaching powder solution contained in a shallow stone trough. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Chloride of lime, or bleaching powder as it is often called, is a good disinfectant, as well as a deodorant. Outlines of dairy bacteriology A concise manual for the use of students in dairying “Brunswick green,” a light green pigment, is obtained from copper sulphate and bleaching powder. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" Chlorine may also be obtained by the action of dilute sulphuric acid on bleaching powder. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" But already in the year 1834 the German chemist Runge noticed that one of the products obtained by distilling coal-tar, namely, aniline, gave a bright blue coloration under the influence of bleaching powder. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z The roller revolves slowly, so that the hanks, while passing continuously through the bleaching powder, are for the greater part of the time being exposed to the air. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" It is the ordinary bleaching powder of commerce and is quite unstable, hence old preparations, unless sealed, are of little value. Special Report on Diseases of Cattle The Javelle water which they had used was made of bleaching powder and washing soda. Common Science One of the most important derivatives of hypochlorous acid is bleaching powder. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Chloride of lime is commonly known as bleaching powder, and its effects on clothes or on any substance which can be eroded is well known. Rural Hygiene The bleaching-powder solution is now allowed to drain off, and water is circulated through the cistern to wash out what bleaching powder remains in the goods. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" The liberation of chlorin gas is brought about by the action of sulphuric acid, either on a mixture of chlorid of sodium and black oxid of manganese or on bleaching powder. Special Report on Diseases of Cattle The chlorine is generally combined with lime to make chloride of lime or bleaching powder. "The Red Watch" With the First Canadian Division in Flanders In the preparation of chloroform by the action of bleaching powder on ethyl alcohol it is probable that the alcohol is first oxidized to acetaldehyde, which is subsequently chlorinated and then decomposed. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Chemical disinfectants in milk: bleaching powder, 81; corrosive sublimate, 81; formalin, 80; sulfur, 80; whitewash, 81; vitriol, 81. Outlines of Dairy Bacteriology, 8th edition A Concise Manual for the Use of Students in Dairying This “natural bleach” is still in use in Holland, a higher price being paid for linen bleached in this way than for the same material bleached with the aid of bleaching powder. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" At first it was sedimented with alum, which precipitated the suspended matter in a gelatinous mass, and the clear fluid was chlorinated with bleaching powder. In Mesopotamia Then place a piece of calico in the water containing the bleaching powder. Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades This effect of bleaching powder was first observed some thirteen years ago by George Witz, who ascribed the tendering of the cotton to the formation of an oxycellulose. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Why, in softening waters for household purposes, must caustic soda, potash, and bleaching powder be used with caution? Human Foods and Their Nutritive Value It is used in the preparation of ammonia, bleaching powder, and potassium hydroxide. An Elementary Study of Chemistry Then it is passed through a cold bath of 3/4 oz. bleaching powder per gallon of water, after which the cloth is rinsed and dried and is then ready for printing. The Dyeing of Woollen Fabrics A man may be the greatest proficient in the knowledge of the principles of chemical science, and yet be utterly ignorant of how bleaching powder, chromate of potash, or soda are made. Western Worthies A Gallery of Biographical and Critical Sketches of West of Scotland Celebrities When cotton is passed into strong solutions of bleaching powder and of alkaline hypochlorites and then dried, it is found to be tendered very considerably. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Cellars should be frequently cleaned and disinfected, using for the purpose some of the well-known disinfectants, as formaline, bleaching powder, or a dilute solution of carbolic acid. Human Foods and Their Nutritive Value This substance is called bleaching powder, or hypochlorite of lime. An Elementary Study of Chemistry Or the wool may be treated to a weak chlorine bath before it is dyed, by first passing it through a weak hydrochloric acid bath and then through a bath of bleaching powder. The Dyeing of Woollen Fabrics Levick dressed the ground with bleaching powder to help dispel that dreadful odour of guano before Campbell's men put down their hut floor. South with Scott The bleaching powder used was estimated to contain 35 per cent of available chlorin, as this is the commercial practice, and the amount required was calculated to the bone-dry weight of the unbleached stock. Hemp Hurds as Paper-Making Material United States Department of Agriculture, Bulletin No. 404 Now, it is the principal product; indeed, the Leblanc alkali maker may be said to subsist on that hydrochloric acid, as his chief instrument for producing chloride of lime or bleaching powder. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association This includes many substances of the highest importance to civilization, such as soap, glass, hydrochloric acid, soda, and bleaching powder. An Elementary Study of Chemistry The second bath contains a clear solution of 10�lb. bleaching powder, which solution is prepared as follows. The Dyeing of Woollen Fabrics Contains no bleaching powder or anything of like nature, Removes easily all stains met with in the laundry. The Bay State Monthly, Volume 3, No. 6 Chlorine, the first gas used, is unpleasantly familiar to every one who has entered a chemical laboratory or who has smelled the breath of bleaching powder. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The presence of CH3 in terpenes is shown by their yielding chloroform when distilled with bleaching powder and water. Scientific American Supplement, No. 711, August 17, 1889 This is condensed, and is utilized in the manufacture of the bleaching powder mentioned above. Scientific American Supplement, No. 611, September 17, 1887 Then the bath is allowed to cool down to 70� or 80��F., the clear bleaching powder solution is added, the goods are re-entered, and the bath is heated to the boil. The Dyeing of Woollen Fabrics Contains no bleaching powder or anything of like nature, Removes easily all stains met with in the laundry. The Bay State Monthly, Volume 3, No. 6 The chlorine is obtained, as it is in the household, from common bleaching powder, or "chloride of lime." Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The manufacture of soap, glass, bleaching powders, baking powders, washing soda, and other chemicals depends on salt, and it is for these that the salt beds are mined. General Science The one weak spot of the ammonia-soda process, as we mentioned before, is its inability to supply hydrochloric acid or chlorine, and so allow of making bleaching powder. Scientific American Supplement, No. 611, September 17, 1887 Another method of chloring the wool is to pass the goods through a bath made with 100 gallons of water, 2 gallons hydrochloric acid and 2 gallons bleaching powder solution of 16��Tw. The Dyeing of Woollen Fabrics Contains no bleaching powder or anything of like nature, Removes easily all stains met with in the laundry. The Bay State Monthly, Volume 3, No. 6 On prolonged boiling nitro-benzene produces at the edge of the liquid a crimson ring, which on the addition of a solution of bleaching powder turns emerald- green. Nitro-Explosives: A Practical Treatise An enormous quantity of sodium carbonate, or soda, as it is usually called, is needed in the manufacture of glass, soap, bleaching powders, and other commercial products. General Science If the chlorine is required to be made into bleaching powder, then it is conveyed into leaden chambers and treated with lime in the usual manner. Scientific American Supplement, No. 841, February 13, 1892 It is customary to express the value of bleaching powder in terms of "available chlorine," by which is meant the chlorine present as hypochlorite, but not the chlorine present as chloride. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes It attacks and dissolves many metals and other intractable substances, sets free most acids from their salts, and is used in the manufacture of hydrochloric and nitric acids, of soda, of bleaching powders, etc. The Gutenberg Webster's Unabridged Dictionary Section S The third process owes its inception to G. Lunge, who recommends the use of bleaching powder. The Project Gutenberg Encyclopedia Volume 1 of 28 But fabrics immersed in a bleaching powder solution do not lose their color as would naturally be expected. General Science It is the fumes of chlorine that kill the men in the bleaching powder works. The Insidious Dr. Fu Manchu Run in the arsenite solution from a burette until no further reaction takes place on the starch-iodide paper when touched by a drop of the solution of bleaching powder. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Others—the alums, ferrous sulphate, ferric chloride, magnesic and aluminic chlorides, bleaching powder, camphor, salicylic acid, chloroform, creosote, and carbolic acid—decidedly arrested the development of bacteria. Scientific American Supplement, No. 288, July 9, 1881 "Puratylene," a mixture of bleaching powder and hydroxide of lime, made very porous, and containing from eighteen to twenty per cent of active chlorine. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The acid used to liberate the chlorine from the bleaching powder, and the chlorine also, rot materials with which they remain in contact for any length of time. General Science From the metallic sodium solid caustic soda is then derived by a secondary reaction, while the chlorine is combined with lime to form chloride of lime or bleaching powder. The Story of Electricity It is difficult to obtain analytical samples which are accurately representative of a large quantity of the bleaching powder. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes The bleaching agents most likely to have been used are oxalic, citric, or hydrochloric acid, bleaching powder solution, or acid sulphite of sodium. Forty Centuries of Ink or, a chronological narrative concerning ink and its backgrounds, introducing incidental observations and deductions, parallels of time and color phenomena, bibliography, chemistry, poetical effusions, citations, anecdotes and curiosa together with some evidence respecting the evanescent character of most inks of to-day and an epitome of chemico-legal ink. German army orders after the French introduction of mustard gas were bristling with references to chloride of lime or bleaching powder. The Riddle of the Rhine; chemical strategy in peace and war In commercial bleaching the material to be bleached is first moistened with a very weak solution of sulphuric acid or hydrochloric acid, and is then immersed in the bleaching powder solution. General Science The behavior of ink marks when treated with solution of bleaching powder is often characteristic, the older writings resisting longer; but unless the reagent be extremely dilute, writings of all ages are removed almost simultaneously. Forty Centuries of Ink or, a chronological narrative concerning ink and its backgrounds, introducing incidental observations and deductions, parallels of time and color phenomena, bibliography, chemistry, poetical effusions, citations, anecdotes and curiosa together with some evidence respecting the evanescent character of most inks of to-day and an epitome of chemico-legal ink. Chlorine was a raw material for mustard gas and—practically every important substance employed in chemical warfare including bleaching powder. The Riddle of the Rhine; chemical strategy in peace and war |
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