GB468157A - Improvements in and relating to the preparation of complex iron compounds - Google Patents
Improvements in and relating to the preparation of complex iron compoundsInfo
- Publication number
- GB468157A GB468157A GB20544/36A GB2054436A GB468157A GB 468157 A GB468157 A GB 468157A GB 20544/36 A GB20544/36 A GB 20544/36A GB 2054436 A GB2054436 A GB 2054436A GB 468157 A GB468157 A GB 468157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- acetato
- hexa
- dihydroxy
- reaction
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic System
- C07F15/02—Iron compounds
- C07F15/025—Iron compounds without a metal-carbon linkage
Abstract
Hexa - acetato - dihydroxy - carbamidotriferric salts which are useful as tanning agents, are prepared by reacting ferric salts with soluble acetates and urea in aqueous solution and adding alkaline substances before, during or after the reaction. One to three molecules of urea may be introduced into the complex, an excess of the theoretical amount being preferably employed. The reaction is desirably effected in highly concentrated solution at a temperature below 35 DEG C. According to the example, a mixture of sodium acetate, urea and sodium hydroxide in water is slowly stirred into an aqueous solution of ferric chloride, whereupon hexa-acetato-dihydroxy-tricarbamido-triferric chloride is precipitated; it can be crystallized from alcohol. Other alkaline substances, such as sodium carbonate, ammonia and amines, may be used in place of caustic alkali.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE468157X | 1936-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB468157A true GB468157A (en) | 1937-06-30 |
Family
ID=6540813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20544/36A Expired GB468157A (en) | 1936-01-22 | 1936-07-24 | Improvements in and relating to the preparation of complex iron compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB468157A (en) |
-
1936
- 1936-07-24 GB GB20544/36A patent/GB468157A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2093519A (en) | Process for the manufacture of condensation products of crotonaldehyde | |
| GB468157A (en) | Improvements in and relating to the preparation of complex iron compounds | |
| GB519749A (en) | Improvements in or relating to ignition compositions in electric blasting detonators | |
| GB571340A (en) | Improvements in or relating to dicyandiamide salts and methods of preparing same | |
| GB708065A (en) | Improvements in the production of photographic images | |
| GB484467A (en) | Toilet depilatory preparations | |
| GB447176A (en) | Improvements relating to rustproofing compositions | |
| GB932523A (en) | Process for the production of lead hydroxide oxide of the formula 5 pbo.2ho | |
| GB553317A (en) | Improvements in the production of alkaline earth metal pantothenates | |
| GB406788A (en) | Manufacture of aminoalkylsulphonic acids and salts thereof | |
| GB645600A (en) | Improvements in or relating to the production of melamine | |
| US2208678A (en) | Process for the production of dibenzylsulphanilic acid | |
| SU67258A1 (en) | The method of obtaining green pigment | |
| GB474518A (en) | Improvements in or relating to cleansing agents | |
| GB568850A (en) | Guanidine derivatives | |
| GB712207A (en) | New sulphonamide compounds and process of preparing the same | |
| GB706409A (en) | Process for the preparation of diethylaminoaceto-2m-xylidide | |
| GB267561A (en) | Improvements relating to low freezing-point solutions | |
| GB481557A (en) | Manufacture of isocyclic compounds | |
| GB633459A (en) | A process for the manufacture of n-(p-arsenosobenzyl)-glycine-amide and salts thereof | |
| GB482126A (en) | Improvements in the manufacture of alkylolamines | |
| GB473078A (en) | Process for the manufacture of urea and formaldehyde varnishes and product obtained | |
| GB409540A (en) | Process for the production of stable water-containing emulsions of vegetable lecithin | |
| GB668567A (en) | Improvements in or relating to a method of preparing a stable theophylline composition and the product resulting therefrom | |
| GB764430A (en) | Improvements in or relating to treatment of glutamic acid |