RU94036676A - Method of preparing potassium pentaborate
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Method of preparing potassium pentaborate
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Publication number
RU94036676A
RU94036676ARU94036676/26ARU94036676ARU94036676ARU 94036676 ARU94036676 ARU 94036676ARU 94036676/26 ARU94036676/26 ARU 94036676/26ARU 94036676 ARU94036676 ARU 94036676ARU 94036676 ARU94036676 ARU 94036676A
Товарищество с ограниченной ответственностью "Экохиммаш"
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Priority to RU94036676/26ApriorityCriticalpatent/RU2063380C1/en
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Publication of RU2063380C1publicationCriticalpatent/RU2063380C1/en
Publication of RU94036676ApublicationCriticalpatent/RU94036676A/en
FIELD: chemistry of boron compounds. SUBSTANCE: 0.05-0.1 weight parts of water is added to 1 weight part of the stoichiometric mixture of potassium carbonate and boric acid. The resulted mixture is agitated for 15- 30 min, then temperature is raised to 80-100 C and the product so obtained is completely dried under normal conditions. EFFECT: elevated yield of the product and simplified process.
Claims (1)
Изобретение относится к способу получения пентабората калия и позволяет повысить выход и упростить процесс получения. Сущность: смешивают карбонат калия, борную кислоту в стехиометрическом соотношении, добавляют воду при массовом соотношении воды к сумме твердых борной кислоты и карбоната калия, равном (0,05 - 0,1 ):1, перемешивают в течение 15-30 мин, повышают температуру до 80-100°C и выдерживают полученный продукт синтеза до поного высушивания.The invention relates to a method for producing potassium pentaborate and allows to increase the yield and simplify the process of obtaining. Essence: potassium carbonate, boric acid are mixed in a stoichiometric ratio, water is added at a weight ratio of water to the sum of solid boric acid and potassium carbonate equal to (0.05 - 0.1): 1, stirred for 15-30 minutes, the temperature is increased to 80-100 ° C and maintain the resulting synthesis product until drying completely.
RU94036676/26A1994-09-291994-09-29Process for preparing potassium pentaborate
RU2063380C1
(en)
5-aryl-1.3.3.-trimethyl-2-methylene-indoline derivatives and salts thereof, methods for the production and use of said compounds for the temporary coloration of fibres
Process for preparing 4-alkylpyrocateching of general formula wherein r is tert-, tert-, tert--c4h9-, tert--c5h11,sec--c6h13, --c8h17, tert--c10h21, cyclo--c10h21