Pressurized alcohol removed remaining water from drained pyrocellulose prior to mixing with ether and diphenylamine.
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The resulting propellant, today known as pyrocellulose, contains somewhat less nitrogen than guncotton and is less volatile.
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Reworked powder or washed pyrocellulose can be dissolved in ethyl acetate containing small quantities of desired stabilizers and other additives.
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Unreacted acid was removed from pyrocellulose pulp by a multistage draining and water washing process similar to that used in paper mills during production of chemical woodpulp.
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Nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder