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1960-09-27
Method of crystallizing
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1985-10-25
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1961-10-24
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1984-12-25
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1966-04-01
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1970-12-29
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1990-05-04
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1996-06-17
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1957-10-08
Purification of monochloroacetic acid
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1963-07-02
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1982-11-17
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1956-10-03
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1991-09-20
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1980-12-30
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1960-05-11
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1953-11-24
Crystallization of urea
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1961-05-02
Method of producing calcium-free crystalline cyanamide
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1981-03-23
Способ получени реактивного хлористогоАММОНи
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1954-07-20
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1983-04-15
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1981-02-06
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1980-12-30
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