SU87088A1 - The method of producing tetracadiation arsenate pentahydrate (4CaO As2O5 5H2O) - Google Patents
The method of producing tetracadiation arsenate pentahydrate (4CaO As2O5 5H2O)Info
- Publication number
- SU87088A1 SU87088A1 SU399537A SU399537A SU87088A1 SU 87088 A1 SU87088 A1 SU 87088A1 SU 399537 A SU399537 A SU 399537A SU 399537 A SU399537 A SU 399537A SU 87088 A1 SU87088 A1 SU 87088A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- arsenate
- as2o5
- 4cao
- pentahydrate
- tetracadiation
- Prior art date
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Предметам изобр1етени вл етс способ получени .пентагидрапа тетракальцийароената (4CaO-As2O5-5H2O), обла(дающего более высокими инсектисидными свойствами в сраинеиии с арсенатом кальци , получаемым в прамышленност1и известным способом.Objects of the invention are a method for the preparation of pentahydrapte tetracalcium carbonate (4CaO-As2O5-5H2O), which has higher insecticide properties in calcium and arsenate obtained in industry in a known manner.
Технологи получени арсаната кальци сО|СТ01Ит в следующем.The technology of calcium arsanate SO | CT01It is as follows.
К раствору арсената натри , нагретого до 90°, приливают суспензию извести, Прогревают смесь при указа 11ной TSMnepaTiypte в течение часа и после отмьшми от раствора е(Д1кого натра, выделившегос .в результате обменной реакции, фильтруют, сушат и т. д. или к суспензии извести шагретой до 90°, приливают раствор мышь ковой Кислоты, Прогревают смесь при этой температуре ,в течение часа, фильтруют, сушатA suspension of lime is poured into a solution of sodium arsenate heated to 90 °. The mixture is heated at the decree of the TSMnepaTiypte for one hour and after being removed from solution e (D1 of sodium separated from the exchange reaction, filtered, dried, etc., or to suspension of lime shaken up to 90 °; solution of mouse acid is poured; Heat the mixture at this temperature, for an hour, filter, dry
и IT. д.and IT. d.
Завадсиие образцы арсената кальци представл ют собой твердые растворы гидроокиси кальци в дигидрате трикальцийарсената с -мол рным соотношением CaO;As2O5, равным от 3,3 до 3,8.The samples of calcium arsenate samples are solid solutions of calcium hydroxide in tricalcium arsenate dihydrate with an-molar ratio of CaO; As2O5 of 3.3 to 3.8.
Описываемый способ обеспечивает получение другой ОСНОВ.БОИ качьциевой соли ортомышь ковой кислоты-пентагидрата тетракальцииарсената (4OaO-As205-5H20), имеющего, в частности, шедующие особенности :The described method provides for the preparation of another BASIC OF THE ORPHILE CAXIC SALT ACID Pentahydrate tetracalcium arsenate (4OaO-As205-5H20), which has, in particular, the following features:
П Водные суспеизии из 4CaO-As2O5.5Н20 имеют рН 9,6 в отличие от суспензий из твердых растворов гвдроокиси кальци в дигидрате трика льций а рсенат1а, имеющих рН 8,3-8,6.P Aqueous suspensions from 4CaO-As2O5.5Н20 have a pH of 9.6, in contrast to suspensions from solid solutions of calcium hydroxide in tricoltium a xenate 1 dihydrate, having a pH of 8.3-8.6.
2) Растворимость 4CaO-As20r.-5H20 в буферных средах с рН 7,5- 10 памного выше растворимости заводских образцов .арсената кальци . Этим и объ сн етс шовышенна токсичность тетракальцийарсената по оравнен1ию с обыЧ|НЫ;М арсена том кальци .2) The solubility of 4CaO-As20r.-5H20 in buffer media with a pH of 7.5-10 is higher than the solubility of factory samples of calcium arsenate. This explains the suvyshennaya toxicity of tetracalcium arsenate, as compared with the usual | HY; calcium arsenate.
3) Мол рное соот-ношение CaO:As2O5 в пентагвдрате ,рав«о 4, в то врем как дл арсената кальци оно составл ет 3,8-3,7.3) The molar ratio of CaO: As2O5 in pentavdrat is equal to about 4, while for calcium arsenate it is 3.8-3.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU399537A SU87088A1 (en) | 1949-06-24 | 1949-06-24 | The method of producing tetracadiation arsenate pentahydrate (4CaO As2O5 5H2O) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU399537A SU87088A1 (en) | 1949-06-24 | 1949-06-24 | The method of producing tetracadiation arsenate pentahydrate (4CaO As2O5 5H2O) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU87088A1 true SU87088A1 (en) | 1949-11-30 |
Family
ID=48258935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU399537A SU87088A1 (en) | 1949-06-24 | 1949-06-24 | The method of producing tetracadiation arsenate pentahydrate (4CaO As2O5 5H2O) |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU87088A1 (en) |
-
1949
- 1949-06-24 SU SU399537A patent/SU87088A1/en active
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