DE411323C - Manufacture of colloidal arsenic sulfide - Google Patents
Manufacture of colloidal arsenic sulfideInfo
- Publication number
- DE411323C DE411323C DEV18396D DEV0018396D DE411323C DE 411323 C DE411323 C DE 411323C DE V18396 D DEV18396 D DE V18396D DE V0018396 D DEV0018396 D DE V0018396D DE 411323 C DE411323 C DE 411323C
- Authority
- DE
- Germany
- Prior art keywords
- solutions
- manufacture
- colloidal
- arsenic sulfide
- arsenic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- CUGMJFZCCDSABL-UHFFFAOYSA-N arsenic(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[As+3].[As+3] CUGMJFZCCDSABL-UHFFFAOYSA-N 0.000 title description 3
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000243 solution Substances 0.000 claims description 10
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical class O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 claims description 8
- 229940000488 arsenic acid Drugs 0.000 claims description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000012047 saturated solution Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 2
- UKUVVAMSXXBMRX-UHFFFAOYSA-N 2,4,5-trithia-1,3-diarsabicyclo[1.1.1]pentane Chemical compound S1[As]2S[As]1S2 UKUVVAMSXXBMRX-UHFFFAOYSA-N 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G28/00—Compounds of arsenic
- C01G28/008—Sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Glass Compositions (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Herstellung von kolloidalem Arsensulfid. Bisher wurde kolloides Arsensulfid durch Ausfällen von Lösungen von arseniger Säure mit Schwefelwasserstoff in der Wärme hergestellt. Hierbei konnte man nur gesättigte Lösungen von kristallisierter arseniger Säure verwenden, da bei Verwendung von glasiger arseniger Säure in gesättigter Lösung eine Ausflockung unter diesen Verhältnissen eintrat. Die Folge hiervon war, daß man infolge der geringen Löslichkeit der kristallisierten arsenigen Säure nur verhältnismäßig verdünnte Kolloidlösungen erhielt. Die Teilchengröße solcher Lösungen ist außerordentlich verschieden und-schwankt zwischen amikroskopischen Teilchen bis zur ultramikroskopischen Sichtbarkeit.Manufacture of colloidal arsenic sulfide. So far it has been colloidal arsenic sulfide by precipitating solutions of arsenic acid with hydrogen sulfide in the Heat produced. Here you could only get saturated solutions of crystallized Use arsenic acid, since when using glassy arsenic acid in saturated Solution flocculation occurred under these conditions. The consequence of this was that due to the low solubility of the crystallized arsenic acid only received relatively dilute colloid solutions. The particle size of such solutions is extraordinarily different and fluctuates between amicroscopic particles up to ultramicroscopic visibility.
Es hat sich nun gezeigt, daß man konzentriertere Lösungen von nur ainikroskopischer Teilchengröße erhalten kann, wenn man gesättigte Lösungen von glasiger arseniger Säure in der Kälte bei etwa o' in bekannter Weise unter Verwendung eines geeigneten Schutzkolloides mit Schwefelwasserstoff ausfällt. Beispiel. In eine etwa 8prozentige Lösung vor, glasiger arseniger Säure wird unter Abkühlung auf o° unter Rühren so lange Schwefelwasserstoff eingeleitet, bis die Lösung deutlich nach Schwefelwasserstoff riecht. Diese Lösungen lassen sich ohne Gefahr auf dem Wasserbade bis zu höchsten Konzentrationen, z. B. sogar bis zur Pastenform oder bis zur oölligen Staubtrockne eindampfen. Aus diesen Eindampfprodukten lassen sich dann wässerige Lösungen beliebiger Konzentration mit Leichtigkeit herstellen.It has now been shown that one can obtain more concentrated solutions from only Ainicroscopic particle size can be obtained if one saturated solutions of using vitreous arsenic acid in the cold at about o 'in a known manner a suitable protective colloid with hydrogen sulfide precipitates. Example. In an approximately 8 percent solution, vitreous arsenic acid is cooled down Hydrogen sulfide was passed in at 0 ° with stirring until the solution became clear smells of hydrogen sulfide. These solutions can be safely used on the Water bath up to the highest concentrations, e.g. B. even to paste form or Evaporate until completely dry as dust. From these evaporation products then prepare aqueous solutions of any concentration with ease.
Das Verfahren hat gegenüber den bisher bekannten Verfahren den Vorzug, daß man eine wesentlich geringere und auch gleichmäßigere Teilchengröße erhält und außerdem von vornherein schon etwa 8- bis ioprozentige Lösungen, während man nach den früheren Verfahren nur etwa 2prozentige Lösungen von wesentlich ungleicherer Teilchengröße erhalten konnte.The method has the advantage over the previously known methods, that one obtains a much smaller and also more uniform particle size and in addition, from the outset already about 8 to 10 percent solutions, while after the earlier methods only about 2 percent solutions of considerably more dissimilar ones Particle size could get.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV18396D DE411323C (en) | 1923-06-06 | 1923-06-06 | Manufacture of colloidal arsenic sulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV18396D DE411323C (en) | 1923-06-06 | 1923-06-06 | Manufacture of colloidal arsenic sulfide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE411323C true DE411323C (en) | 1925-03-26 |
Family
ID=7577082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEV18396D Expired DE411323C (en) | 1923-06-06 | 1923-06-06 | Manufacture of colloidal arsenic sulfide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE411323C (en) |
-
1923
- 1923-06-06 DE DEV18396D patent/DE411323C/en not_active Expired
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