| 单词 | cellulose nitrate |
| 例句 | The warehouse is owned by the national film institute, Cinemateca, and houses South America’s largest collection of films, some made of cellulose nitrate, a highly flammable material. Fire erupts at warehouse of Brazil’s national film institute 2021-07-29T04:00:00Z Ms. Lagana and Dr. Madden immediately identified the plastic as cellulose nitrate, an early material widely used in photography and motion picture film. These Cultural Treasures Are Made of Plastic. Now They’re Falling Apart. 2018-08-28T04:00:00Z The sequins on two dresses are plagued by “inherent vice”—a degradation of cellulose nitrate. Portfolio: Twenty-One Dresses 2015-03-16T04:00:00Z We are also working with materials like cellulose nitrate and cellulose acetate, which are contained in archaic film material. Lorraine Gibson: How the smell of decay can help save relics 2011-03-27T00:05:18Z Thus the cellulose nitrates are the bases of our modern high explosives, as well as those now used for military purposes. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" In purifying the product the former solvent is used to remove any cellulose nitrates. Researches on Cellulose 1895-1900 Several well-characterised cellulose nitrates have been prepared, but is an exceedingly difficult matter to obtain any one in a state of purity, the commercial articles being always mixtures of two or three. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student If instead of dissolving the cellulose nitrate and spreading it on fabric we combine it with camphor we get celluloid, a plastic solid capable of innumerable applications. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries This solution dissolves the cellulose nitrates, but does not affect the cellulose. Nitro-Explosives: A Practical Treatise Stabilising cellulose nitrates.—The process is of especial value in rendering stable and inert the traces of unstable compounds which always remain in cellulose nitrate after the ordinary boiling and washing process. Researches on Cellulose 1895-1900 They were more especially investigated in regard to temperatures of decomposition, which were found to lie considerably lower than that of the cellulose nitrates. Researches on Cellulose 1895-1900 It is best therefore to consider them as cellulose nitrates. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student It is of greatest value in the manufacture of collodion cotton used for the preparation of gelatinous blasting explosives and all explosives composed of nitroglycerin and cellulose nitrates. Researches on Cellulose 1895-1900 There are, however, other means of arriving at structureless cellulose nitrates. Researches on Cellulose 1895-1900 Thus in the opalescent or milky solutions in which a proportion of cellulose nitrate is held in solution or semi-solution by the acetone still present, the lead acetate causes a dense coagulation. Researches on Cellulose 1895-1900 The growth is rapid, and a considerable quantity of the vegetable growth accumulates round the masses of cellulose nitrate, but no growth is observed if mineral matter is absent. Researches on Cellulose 1895-1900 One of the most interesting applications of the cellulose nitrates is in the production of artificial silk. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student N. It is clear that the cellulose nitrates are associated in these precipitates with the lead salts of the acid compounds in question. Researches on Cellulose 1895-1900 In order to further verify this conclusion, standard specimens of cellulose nitrates have been treated with a large number of metallic salts under varying conditions of action. Researches on Cellulose 1895-1900 It is considered probable that the cellulose nitrates are hydrocellulose derivatives, and experimental evidence in favour of this conclusion is supplied by the results of 'nitrating' the celluloses and their oxy- and hydro- derivatives. Researches on Cellulose 1895-1900 Cellulose itself cannot act as a food supply, and it seems probable that if glycerol is present cellulose nitrate is no longer made use of. Researches on Cellulose 1895-1900 |
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