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1951-02-13
Production of alkali metal carbonate perhydrates
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1977-01-25
Stable sodium sulfate-hydrogen peroxide-sodium chloride adduct and process for preparing same
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1970-09-16
Process for the production of phosphoric acid
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1973-11-21
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1969-08-06
Process for Producing Iodine Pentafluoride
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1972-04-16
Procedimiento de deshidratacion del acido maleico en anhi- drido maleico.
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1989-08-04
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1949-10-04
Maleic acid liquor purification and isomerization to fumaric acid
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1929-07-30
Process of purifying chemicals
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1958-10-21
Process for the purification of phosphorous acid
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1983-07-06
안정된 황산티타늄 용액의 제조방법
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1908-11-17
Sodium perborate containing borax and method of producing same.
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1927-02-22
Process of making dicyandiamid
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1998-12-01
용융된 시클로헥사논 옥심의 저장성을 개선시키는 방법
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1962-10-23
Purification of sulfuric acid
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1959-06-02
Removing sodium chlorate from solid sodium hydroxide
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1924-12-09
Manufacture and production of oxalic acid
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1951-12-11
Process for reducing nitroanilines
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1957-02-13
Improvements in or relating to the crystallisation of nitrates from nitric acid solutions of calcium phosphate
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1966-10-11
Stabilized borate compositions
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1957-07-02
Manufacture of acrylonitrile
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1958-10-14
Method for preparing anhydrous sodium borohydride
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1954-06-29
Process for making hydrazine sulfate
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1934-10-02
Purification of trinitrotoluene
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1965-12-28
Method of obtaining insoluble basic aluminum ammonium alum