SU52472A1 - The method of obtaining the double salt of ammonium fluoride antimony - Google Patents
The method of obtaining the double salt of ammonium fluoride antimonyInfo
- Publication number
- SU52472A1 SU52472A1 SU52472A1 SU 52472 A1 SU52472 A1 SU 52472A1 SU 52472 A1 SU52472 A1 SU 52472A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining
- ammonium fluoride
- antimony
- double salt
- fluoride
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 4
- 150000003839 salts Chemical class 0.000 title description 3
- NVQSRYWLHHEKIZ-UHFFFAOYSA-N azanium;antimony;fluoride Chemical compound [NH4+].[F-].[Sb] NVQSRYWLHHEKIZ-UHFFFAOYSA-N 0.000 title description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 2
- GUNJVIDCYZYFGV-UHFFFAOYSA-K antimony trifluoride Chemical compound F[Sb](F)F GUNJVIDCYZYFGV-UHFFFAOYSA-K 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-O azanium;hydron;hydroxide Chemical compound [NH4+].O VHUUQVKOLVNVRT-UHFFFAOYSA-O 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Description
Раствор упаривают и полученные кристаллы отфильтровываютс . Содержание в них сурьмы в пересчетеThe solution is evaporated and the resulting crystals are filtered off. The content of antimony in terms of
на трехокись близко к 77%, что отвечает соли состава 4 SbFg. . Если при разложении трехокиси былthe trioxide is close to 77%, which corresponds to the salt of composition 4 SbFg. . If the decomposition of the trioxide was
применен значительный избыток плавиковой кислоты, то дл реакции может быть вз т раствор фтористого аммони , полученный путем нейтрализации плавиковой кислоты аммиаком по фенолфталеину.Since a significant excess of hydrofluoric acid is used, an ammonium fluoride solution obtained by neutralizing hydrofluoric acid with ammonia over phenolphthalein can be taken for the reaction.
Этот раствор приливаетс , согласно расчету, к раствору фтористой сурьмы , и так как содержащийс в нем средний фтористый аммоний неустойчив и легко гидролизуетс по уравнению:This solution is added, according to the calculation, to the antimony fluoride solution, and since the ammonium fluoride contained therein is unstable and easily hydrolyzed by the equation:
(NH,),F2 + НОН: NH.OH 4- NH.F.HF(NH,), F2 + HOH: NH.OH 4- NH.F.HF
с образованием свободного гидрата аммони , то это приводит к м гкой нейтрализации раствора фтористой сурьмы.with the formation of free ammonium hydrate, this leads to a mild neutralization of the solution of antimony fluoride.
Однако нужно отметить, что и с кислым фтористым аммонием процесс идет гладко, так как свободна плавикова кислота в значительной мере удал етс при упаривании.However, it should be noted that the process proceeds smoothly with acidic ammonium fluoride, since the free hydrofluoric acid is largely removed during evaporation.
Предмет изобретени .The subject matter of the invention.
Способ получени двойной соли фтористоаммонийной сурьмы 4 SbFj. смешением растворов SbFg и , отличающийс тем, что обработку раствора SbFj ведут в кислой среде, например, введением в процесс кислой фтористоаммонийной соли .HF, либо прибавлением твердой фтористоаммонийной соли NH4F в раствор фтористой сурьмы SbF, содержащий свободную плавиковую кислоту.The method of obtaining the double salt of fluoride ammonium antimony 4 SbFj. by mixing SbFg solutions and characterized in that the SbFj solution is treated in an acidic medium, for example, by introducing the acidic .HF acid fluoride salt into the process, or by adding solid NH4F fluoride ammonium salt to the SbF fluoride solution containing free hydrofluoric acid.
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