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C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B35/00—Boron; Compounds thereof
C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
C01B35/10—Compounds containing boron and oxygen
C01B35/12—Borates
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Description
3 ры сернокислого железа и борной кислоты в присутствии гидроокиси аммони нри рН ереды , равной 8-9, с последующей термообра4 боткой полученного нродукта в две стал.и;. при 420-450° С в течение 12 час на первой стадии.3 ry ferrous sulfate and boric acid in the presence of ammonium hydroxide at a pH of 8–9, followed by thermal treatment of the resulting product in two steels ;. at 420-450 ° C for 12 hours in the first stage.
SU1818601A1972-08-071972-08-07
Method for producing polycrystalline iron orbital
SU493432A1
(en)
Procedure for the treatment of metal parts with views to its cold transformation without change of chip. (Machine-translation by Google Translate, not legally binding)