Nitrocellulose high-grade

High Grade Nitrocellulose. Same as Guncotton described under Cellulose and Derivatives in Vol 2, p C106-R... 

Nitrocellulose high performance gun propellant [military grade gunpowder double based)... 

Nitrocellulose (high nitrogen grades) Car re-finishing Clear coating for wooden furniture Ketones Esters Glycol ethers Aromatic and aliphatic hydrocarbons Mainly low and medium boiling solvents. Alcohols act as latent solvents. 

F.B. Wells J.R. Hendrickson, Sr, High Energy Flexible Explosive, II. The Dynamite Grade Nitrocellulose/Triethyleneglycol Dinitrate Binder System , PATR 4847 (1976) (Limited Distribution, not used in this article)... 

Nitrated papers which are based on highly purified wood pulp and other fibres used to manufacture the highest grades of nitrocellulose for use as celluloid, films, and lacquers. 

Cellulose nitrate (CN) or nitrocellulose is a nitric acid ester of cellulose manufactured by the action of a mixture of sulfuric acid and nitric acid on cellulose, such as purified cotton linters. The major use of plastics-grade cellulose nitrate is in the coating field. Despite its disadvantages of flammability, instability, and poor weathering properties, cellulose nitrate is one of the cheapest and most highly impact-resistant plastic. It still has many uses because of these properties, including fountain pens, tool and brush handles, eyeglass frames, and some motion picture film. It accounts for only a small fraction of the volume of cellulose plastics. Cellulose nitrate materials are sometimes simply called nitrates. 

A second important criterion for classification of nitrocellulose is its average MW, which is more conveniently expressed as the viscosity of its solutions. Based on this, it is classified as low viscosity, medium viscosity, and high viscosity grades. 

The first five components are high speed dispersed or bead milled. The 1/2 Sec Nitrocellulose (80/20 Plasticiser) is predissolved in the solvents (toluene, acetone and ethyl acetate) before it is added to the above. The nitrocellulose could be replaced with a suitable grade of CAB. Mixed viscosity is 40-45 secs B4 at 20°C with a specific gravity (S.G.)of 1.16. 

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