Pyroxylin solution

COLLODION Cellulose Nitrate Solution, Nitrocellulose Solution, Pyroxylin Solution, Box Toe Gum Flammable Liquid, II 2 3 3... 

Pyroxylin Solution. Pyroxylin (nitrocellulose) or soluble cotton dissolved in amyl acetate or other organic solvents. Pyroxylin solution is used as a basis for the manufacture of lacquer, leather coating compounds, leather substitutes, cements, etc. It is generally more viscous than ordinary lacquers. ICAO A2... 

Properties Pulpy, cottonlike, amorphous solid (dry) colorless liquid to semisolid (solution). Contains from 10 to 14% nitrogen. D 1.66, flash p 55F (12.7C), autoign temp 338F (170C). High-nitrogen form (explosives) is soluble in acetone insoluble in ether-alcohol mixture. Low-nitrogen form (pyroxylin) is soluble in ether-alcohol mix and acetone (collodion and lacquers). 

Polyvinyl resins Protein plastics Pyroxylin Rosins, synthetic Rosin modified resins Silicone fluid solution (fluid for sonar transducers)... 

A nitrated cellulose dampened with not less than 25% of organic solvent is mentioned as Pyroxylin in USP XXI and BP. It is also known as Colloxylin. It serves to prepare collodions (solutions in ether and alcohol). 

Collodion 4743-4 A viscous solution of pyroxylin in a mixture of alcohol and ether also, sometimes, a similar solution of pyroxylin in some othtr solvent, as acetone, used as a coating for wounds, for photographic films, small balloons, membranes, etc. 

PYROXYLIN (9004-70-0) C H, (0N02)40 (C,2Hj4N.022) The dry material (usually resulting from evaporation) is shock-sensitive explosive that can deflarate spontaneously. Do not allow material to becomes dry. The dry material is often wetted with water, amyl acetate denatured edianol, ethanol, isopropanol, eflianol-diethyl ether solution or 1-butanol [explosion limits in air (vol %) 1.9 to 36.0 (diethyl ether) flash point <-0°F/<-18°C (dry) 9°FM5°C (diethyl ether) - autoignition temp 356°F/180°C (diethyl... 

PYROXYLIN (9004-70-0) Flammable solid (flash point —64°F/—53°C cc). The dry material is a fire and explosion hazard often wetted with water, denatured ethanol, or ethyl alcohol-ethyl ether solution (flash point <-4°F/<-18°C). Dry material, resulting from evaporation, can deflagrate [ignite explosively (flash point 55°F/12°C)]. Contact with strong oxidizers or elevated temperatures can cause fire and explosions. May accumulate static electrical charges may cause ignition of its vapors. Attacks some plastics, rubber, and coatings. 

Mix the ether and the spirit, and add the pyroxylin. Set aside for a few days, and, should there be any sediment, decant the clear solution. Keep in a well-corked or stoppered bottle. 

The solvents of pyroxyline can be divided into general classes—First, those whieh are solvents without the aid of heat or solution in alcohol second, those that are solvents when dissolved in aleohol. These solvents are those which also develop a solvent action when heated to their melting point in combination with pyroxyline. 

In the context of adhesives, cement is a natural rubber- or silicone-based elastomeric. Rubber cements contain a suitable solvent such as naphtha or aromatic hydrocarbons. Pyroxylin cements are adhesives based on solutions of nitrocellulose in alcohol, ether, or another solvent. Hydraulic cements used in construction, such as portland or pozzolana cement, are nonhazardous mixtures composed of some combination of lime, alumina, and silica which sets into a hard product (concrete) when water is added (the term portland... 

Paint, see Paints and Coatings, p.l75 Pyroxylin cement, see Adhesives, p.l Self-heating, see Spontaneously Combustible Materials and Division 4.2, p.226 Solution, see Terminology, Solutions, p.247 Solvent, see Solvents, p.224 Wetted, see Terminology, Wetted, p.253... 

For the production of cellophane, the regenerated cellulose film is washed, bleached, plasticized with ethylene glycol or glycerol, and then dried sometimes a coating of pyroxylin (cellulose nitrate solution) containing dibutyl phthalate as plasticizer is applied to give heat scalability and lower... 

Classification Polymer Definition A solution of pyroxylin (chiefly nitrocellulose) (6%) in ether (70%) and alcohoi (24%)... 

These include cellulose acetate, cellulose acetate butyrate, cellulose cap-rate, and cellulose nitrate (nitrocellulose or pyroxylin). Cellulose esters are used for bonding leather, paper, and wood. While not generally used with metals, specific non-porous substrates such as cellophane (regenerated cellulose) and glass are sometimes bonded with cellulose nitrate or other cellulose esters applied from solution. - ... 

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