The pyroxyline was the di-nitro-cellulose (or possibly the penta-nitro?), and the temperature was below the igniting point of this material (40° C. would have been a better temperature). From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The usual method is, however, to dissolve the camphor in the least possible quantity of alcohol, and sprinkle the solution over the dry pyroxyline, which is then covered with a second layer of pyroxyline, and the whole again treated with the camphor solution, the addition of pyroxyline and camphor solution being repeated alternately until the requisite amount of celluloid mixture is obtained. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
From 30 to 35 lbs. of pyroxyline were produced in each of the fourteen days. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
These four classes include the greater number of the solvents of pyroxyline. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The usual proportion of the constituents is 2 parts pyroxyline and 1 part camphor. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The impregnation of the pyroxyline with the camphor is effected in a variety of ways. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The pyroxyline employed is generally the tetra - and penta-nitrated cellulose, the hexa-nitrate. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
Paper made from the pulps of sulphite and sulphate processes is capable of yielding a very soluble pyroxyline. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
In this way a very perfect hydro-cellulose is obtained, and in the best form for producing excellent pyroxyline. From Wordnik.com. [Scientific American Supplement, No. 286, June 25, 1881] Reference
The composition is prepared as follows: -- Nitro-glycerine is thickened with pyroxyline to the consistency of raw rubber. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The hook at one end of the rod enables the workman to pull the pyroxyline apart, and thus ensures saturation of the fibre. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
He found that after treatment with ammonia, pyroxyline assumed a slightly yellowish tinge, which was a sure sign of alkalinity. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
These solvents are those which also develop a solvent action when heated to their melting point in combination with pyroxyline. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
Richard Hale uses the following solvent: -- Amyl-acetate, 4 volumes; petroleum naphtha, 4 volumes; methyl-alcohol, 2 volumes; pyroxyline, 4 to. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The solution of the pyroxyline nitrates in ether and alcohol is known as collodion, and is used in photography and in medical and surgical work. From Wordnik.com. [The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student] Reference
This formula is very largely used for the production of pyroxyline varnish, which is used for varnishing pens, pencils, &c., also brass-work and silver-ware. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
Photographic Society of France, M. Girard showed his method of preparing cellulose in a state of powder, specially adapted for the production of pyroxyline for making collodion. From Wordnik.com. [Scientific American Supplement, No. 286, June 25, 1881] Reference
Ether s.g. 0.720, 4 fluid ounces; alcohol s.g. 0.820, 2-1/2 fluid ounces; pyroxyline, 40 grains; castile soap dissolved in alcohol, 30 grains; bromide of ammonium and cadmium, 56 grains. From Wordnik.com. [Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889] Reference
The nitro-cellulose produced by this formula is very insoluble in the compound ethers and other solvents of pyroxyline, and is seemingly only converted or gelatinised by the action of the solvent. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The manufacture of pyroxyline for the purpose of making celluloid has very much increased during recent years, and with this increase of production improved methods of manufacture have been invented. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
The solvents of pyroxyline can be divided into general classes -- First, those which are solvents without the aid of heat or solution in alcohol; second, those that are solvents when dissolved in alcohol. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
It appears to be merely a mixture of its components, since by treatment with appropriate solvents the camphor may be readily extracted, and on heating the pyroxyline burns away while the camphor volatilises. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
Nitro-benzene gives a solution that is granular; it seems to merely convert the pyroxyline, and not to dissolve it; but on the addition of alcohol, a solution is at once obtained, and the granular appearance disappears, and the solution becomes homogeneous. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
By mixing certain proportions of ammonium iodide and cadmium bromide, or an iodide and bromide of cadmium with collodion -- which is pyroxyline, a kind of gun-cotton dissolved in ether and alcohol -- a plate of glass is coated, and before being perfectly dry is immersed in the nitrate of silver bath. From Wordnik.com. [Scientific American Supplement, No. 288, July 9, 1881] Reference
No. 133, 969) use ramie, rheca, or China grass for producing a soluble pyroxyline. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
Ketones as solvents for pyroxyline, 101. From Wordnik.com. [Nitro-Explosives: A Practical Treatise] Reference
(13) Celluloid or pyroxyline manufacture or processing; the manufacture of explosive or highly inflammable cellulose products or of acetylene gas on a commercial scale; manufacture of matches, fireworks or explosives; nitrating process; the loading of explosives or their storage in bulk. From Wordnik.com. [The code of the city of Charlottesville, Virginia] Reference
LearnThatWord and the Open Dictionary of English are programs by LearnThat Foundation, a 501(c)3 nonprofit.
Questions? Feedback? We want to hear from you!
Email us
or click here for instant support.
Copyright © 2005 and after - LearnThat Foundation. Patents pending.