Chemical

Examples

• For example, if the sun's rays fall upon silver chloride, a chemical action immediately begins, and as a result we have two separate substances, chlorine and silver. Bertha M. Clark. General Science.
• The art of manufacturing gems synthetically, that is, by the combination of chemical elements present in the real stone, has reached a high degree of success. Various. The Wonder Book of Knowledge.
• In the following year Davy reported other chemical changes produced by electricity; he had succeeded in decomposing the fixed alkalis and disc overing the elements potassium and sodium. Walter Libby. An Introduction to the History of Science.
• Alexander Bain of Edinburgh in 1845-46 originated the modern automatic chemical telegraph. William Henry Doolittle. Inventions in the Century.
• There were the chemical corner and the acid-stained, deal-topped table. Arthur Conan Doyle. The Return of Sherlock Holmes.
• The main building was divided into five chief divisions--the library, office, machine shops, experimental and chemical rooms, and stock-room. Frank Lewis Dyer. Edison, His Life and Inventions.
• So, when I am after a chemical result that I have in mind, I may make hundreds or thousands of experiments out of which there may be one that promises results in the right direction. Frank Lewis Dyer. Edison, His Life and Inventions.
• In this case, chemical action is expended in heat rather than in the production of electricity and the liquid becomes hot. Bertha M. Clark. General Science.
• One of the best-known cells in which weakening of the current is prevented by chemical means is the so-called gravity cell. Bertha M. Clark. General Science.
• The latest improvement in chemical matches is the Vesta, which consists of small wax, or stearine tapers, with an igniting composition at the end, consisting of chlorate of potass and phosphorus. Frederick C. Bakewell. Great Facts.
• The tremendously complex nature of the chemical reactions which take place in the lead-acid storage battery also renders it an easy prey to many troublesome diseases. Frank Lewis Dyer. Edison, His Life and Inventions.
• Chemical analysis shows oleomargarine to have substantially the same constituents and in almost the identical proportions of pure butter. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
• When chemical action between the water and carbide has ceased, and gas bubbles have stopped forming, slaked lime is all that is left of the dark gray crystals which were put into the water. Bertha M. Clark. General Science.
• Holmes was seated at his side-table clad in his dressing-gown, and working hard over a chemical investigation. Arthur Conan Doyle. The Memoirs of Sherlock Holmes.
• The hydrogen formed by the chemical action of the dilute sulphuric acid on the zinc moves toward the copper electrode, as in the simple voltaic cell. Bertha M. Clark. General Science.
• George Pullman, who then had a small shop at Detroit and was working on his sleeping-car, made Edison a lot of wooden apparatus for his chemicals, to the boy's delight. Frank Lewis Dyer. Edison, His Life and Inventions.
• And so much harm has been done by food preservatives that the pure food laws require that cans and bottles contain a labeled statement of the kind and quantity of chemicals used. Bertha M. Clark. General Science.
• Edison's chief chemist says: We left no stone unturned to find a way of making those chemicals so that they would give the highest results. Frank Lewis Dyer. Edison, His Life and Inventions.
• That let all the fumes and chemicals out and overcame the firemen; and there was the devil to pay. Frank Lewis Dyer. Edison, His Life and Inventions.
• Medieval Europe used various forms of water pumps, and it was not until the opening of the nineteenth century that chemicals were used to combat fire. Various. The Wonder Book of Knowledge.
• Without his scrapbooks, his chemicals, and his homely untidiness, he was an uncomfortable man. Arthur Conan Doyle. The Return of Sherlock Holmes.
• Rain water, coming as it does from the clouds, is free from the chemicals gathered by ground water, and is hence practically pure. Bertha M. Clark. General Science.
• Tons of chemicals and hundreds of pine trees are used yearly in the making of matches, and many hundreds of millions of them are daily consumed. William Henry Doolittle. Inventions in the Century.
• Benzoate of soda, and salicylic acid are the chemicals most widely employed for this purpose, with coal-tar dyes to simulate the natural color of the fruit. Bertha M. Clark. General Science.
• Objects, such as furniture, which cannot be boiled, are disinfected by the use of any one of several chemicals, such as sulphur, carbolic acid, chloride of lime, corrosive sublimate, etc. Bertha M. Clark. General Science.
• Many other chemicals can be used, however, for making the fluorescing screen, such as the sulphides of calcium, barium and strontium. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
• The evil results of an accident with acid can be lessened if we know just what to do and do it quickly, but for this we must have a knowledge of bases, the second group of chemicals. Bertha M. Clark. General Science.
• Thus supporting himself, he felt entitled to spend any other profit left over on chemicals and apparatus. Frank Lewis Dyer. Edison, His Life and Inventions.
• They contained the chemicals with which he was constantly experimenting. Frank Lewis Dyer. Edison, His Life and Inventions.
• But the chemicals which destroy bacteria frequently injure the consumer as well. Bertha M. Clark. General Science.

Editor: Ronda