| 单词 | sodium sulphate |
| 例句 | Their approach is to treat blocks of wood with sodium hydroxide and sodium sulphate in a chemical process similar to that used to remove lignin from papermaking pulp. Making buildings, cars and planes from materials based on plant fibres 2018-06-14T04:00:00Z The process invented by German chemist Carl Dahl in the 1880s turns wood into pulp using caustic soda and sodium sulphate. Getting rid of dirt - and murder victims 2014-05-02T23:21:49Z Thus sodium sulphate may crystallize alone or with either seven or ten molecules of water, giving rise to three crystallographically distinct substances. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Another process consists in treating a mixture of the residue with one-quarter of its weight of calcined sodium sulphate with sulphuric acid, the residue being finally boiled with a large quantity of acid. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z These last can be made as follows: Sodium chloride, ℥I; sodium bicarbonate, ℥II; sodium sulphate, ℥IV. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z In fact, concentration of saline matter, notably common salt, sodium sulphate, gypsum, etc., is one of the functions, so to speak, of arid climates, when the requisite evaporation basins are present. North America 2011-05-05T02:00:20.027Z An excess of sodium sulphate is to be avoided, otherwise precipitation of the colouring matter and imperfect dyeing result. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z In this wash the addition of salt or sodium sulphate at the rate of 1-1/2 pounds per gallon of water is advisable. Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. For rich ores the method of roasting the sulphide with metallic iron is sometimes employed; carbon and salt or sodium sulphate being used to slag the iron. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" “Potassium sulphate in the blood reacts to some extent with sodium chlorid, forming potassium chlorid and sodium sulphate, both of which are rapidly eliminated by the kidneys.” Dietetics for Nurses This consists in stacking the broken ore in heaps and adding a mixture of sodium sulphate and ferric 107 chloride in the proportions necessary for the entire conversion of the iron into ferric sulphate. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" The addition of sodium sulphate to the dyebath exerts a restraining action; the dyeing therefore proceeds more slowly and regularly, and a more equal distribution and better absorption of the colouring matter takes place. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Thus decinormal jelly solutions of barium chloride and sodium chloride, the latter containing a trace of sodium sulphate, were placed in contact. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" To enamel the paper: Dissolve 100 parts of barium nitrate in 500 parts of water, and, on the other hand, 200 parts of sodium sulphate in the same quantity of water. Photographic Reproduction Processes Stock solutions for developing: Make solution No. 1 as follows: water, 32 ounces; tolidol, I ounce; sodium sulphate, 1 1/2 ounces. Practical Mechanics for Boys The oil is now dried with anhydrous sodium sulphate, filtered, and 1-2 grammes weighed into a flask and saponified with alcoholic potash as in the determination of ester or saponification value. The Handbook of Soap Manufacture Wool is dyed in a similar manner, sodium sulphate being added to the dyebath, and the dyed colour treated with fluoride of chromium or bichromate of potash. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z When water contains a large amount of sodium chloride, sodium sulphate or carbonate, or other alkaline salts, it is termed an "alkali water." Human Foods and Their Nutritive Value By evaporating the neutralized solution to dryness, the weight of the sodium sulphate formed can be determined directly. An Elementary Study of Chemistry Solution No. 2: Water, 32 ounces; sodium sulphate. Practical Mechanics for Boys The normal salts of the alkaline metals, such as sodium chloride, potassium sulphate, sodium sulphate, etc., have no action whatever on the wool fibre. The Dyeing of Woollen Fabrics With sodium sulphate, a modification of the same method is used. A Text-book of Assaying: For the Use of Those Connected with Mines. In making glass to be used for mirrors, a considerable portion of sodium sulphate is used, and in annealing, this is partly reduced to sodium sulphide, which effloresces on the surface of the glass. Scientific American Supplement, No. 1178, June 25, 1898 On dissolving the cooled mixture in water the sodium sulphate formed in the reaction, together with any excess of sodium carbonate which may be present, dissolves. An Elementary Study of Chemistry It is further claimed that each of these materials is insoluble in sodium chloride and sodium sulphate, 3% solution. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Reinforced Concrete Pier Construction The production of salt-cake or crude sodium sulphate is carried out in two stages. The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association This is small, and its amount is determined by an experiment with 3.55 grams of pure sodium sulphate. A Text-book of Assaying: For the Use of Those Connected with Mines. The sale of plastered wines, containing more than two grammes of potassium, or sodium sulphate, is prohibited. Scientific American Supplement, No. 832, December 12, 1891 Commercially, hydrochloric acid is prepared in connection with the manufacture of sodium sulphate, the reaction being the same as that just given. An Elementary Study of Chemistry The use of pepsin for this purpose cannot serve nature's purpose, as it contains neither sodium carbonate nor sodium sulphate. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration As the sodium sulphate is soluble in water, and the barium carbonate insoluble, a separation between them is possible and the sulphur can be determined in the water-soluble portion. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes On extracting with water, filtering, evaporating, and igniting, sodium sulphate is left, and is weighed as such. A Text-book of Assaying: For the Use of Those Connected with Mines. The chief constituents of the waters are calcium sulphate, sodium sulphate, magnesium chloride, calcium carbonate, and sodium chloride, and there are traces of other minerals. Somerset It will be noticed that the water softened in this way will contain sodium sulphate and chloride, but the presence of these salts is not objectionable. An Elementary Study of Chemistry Our blood must be given a fresh and sufficient supply of sodium carbonate and sodium sulphate via our food, if it is to produce normal bile and supply the requisites of normal nutrition. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration Suitable febrifuges are found in potassium nitrate, potassium chlorate, sodium sulphate, or magnesium sulphate, either of which or a mixture of two or more of them, the animal will readily take in his drinking-water. Diseases of the Horse's Foot In the Leblanc process of manufacture the first step is the conversion of salt into sodium sulphate by sulphuric acid. The Project Gutenberg Encyclopedia Volume 1 of 28 The Verde deposit now is being mined for shipment to paper mills of its sodium sulphate. Mormon Settlement in Arizona A Record of Peaceful Conquest of the Desert Further neutralisation reduces the tanning intensity of the product; the addition of sodium sulphate to the original partly neutralised product hastened tannage, the leather, however, possessing dark colour and being undertanned. Synthetic Tannins It is erroneously held that sodium sulphate is simply a laxative, even Borner's "Royal Medical Calendar" so classifies it. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration He found that it contained small quantities of silica, iron phosphate, magnesium carbonate, calcium carbonate, calcium sulphate, potassium nitrate, potassium sulphate, sodium borate, sodium sulphate, and a considerable quantity of sodium chloride. Inca Land Explorations in the Highlands of Peru The springs may be classed under two heads—firstly, sodium sulphate; 2ndly, saline—both naturally heated. Twixt France and Spain This first consisted of sodium sulphate, sodium chlorid, sodium phosphate, sodium bicarbonate and potassium sulphate in water in such amounts as to stimulate the blood plasma. Disturbances of the Heart The springs are nearly all naturally heated, varying from 103° to 150° Fahr.; they may be divided into four classes: 1st, sodium sulphate; 2nd, saline; 3rd, bicarbonate of iron; 4th, saline, but cold. Twixt France and Spain |
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