JPS57143364A - Preparation of transparent pigment of iron oxide - Google Patents
Preparation of transparent pigment of iron oxideInfo
- Publication number
- JPS57143364A JPS57143364A JP2879181A JP2879181A JPS57143364A JP S57143364 A JPS57143364 A JP S57143364A JP 2879181 A JP2879181 A JP 2879181A JP 2879181 A JP2879181 A JP 2879181A JP S57143364 A JPS57143364 A JP S57143364A
- Authority
- JP
- Japan
- Prior art keywords
- iron oxide
- sol
- aqueous solution
- transparent
- water
- 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.)
- Granted
Links
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
PURPOSE: To obtain the titled pigment useful for coloring a film, etc., having improved dispersibility, by adding a basic aqueous solution and an anion exchange resin to an aqueous solution of ferric salt, adjusting the solution to a specific pH, to give a transparent ultrafine hydrated iron oxide sol.
CONSTITUTION: Preferably basic aqueous solution (e.g., ammonia water) is an aqueous solution of ferric salt, which is adjusted to a pH of 1W4, to give a transparent hydrated iron oxide sol having particle diameters of preferably ≤100Å at an adjusting temperature of ≤60°C. An anionic surface active agent (sodium dodecylbenzenesulfonate) is added to the sol, so that the particles of hydrated iron oxide are once agglomerated. A water-insoluble organic solvent (e.g., toluene) is added to the sol, the sol is shaked vigorously, the ultrafine particles of hydrated iron oxide are transferred and dispersed into the organic solvent, the organosol separated from water is evaporated and refluxed at the boiling point of the organic solvent to remove water, to give a transparent pasty or powdery pigment of iron oxide.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2879181A JPS594452B2 (en) | 1981-02-27 | 1981-02-27 | Production method of transparent iron oxide pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2879181A JPS594452B2 (en) | 1981-02-27 | 1981-02-27 | Production method of transparent iron oxide pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57143364A true JPS57143364A (en) | 1982-09-04 |
| JPS594452B2 JPS594452B2 (en) | 1984-01-30 |
Family
ID=12258240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2879181A Expired JPS594452B2 (en) | 1981-02-27 | 1981-02-27 | Production method of transparent iron oxide pigment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS594452B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0428389A2 (en) * | 1989-11-13 | 1991-05-22 | Sakai Chemical Industry Co., Ltd., | Process for producing metal hydroxide sol |
| US6660793B1 (en) | 2000-06-15 | 2003-12-09 | E. I. Du Pont De Nemours And Company | Aqueous coating compositions having improved transparency |
-
1981
- 1981-02-27 JP JP2879181A patent/JPS594452B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0428389A2 (en) * | 1989-11-13 | 1991-05-22 | Sakai Chemical Industry Co., Ltd., | Process for producing metal hydroxide sol |
| US6660793B1 (en) | 2000-06-15 | 2003-12-09 | E. I. Du Pont De Nemours And Company | Aqueous coating compositions having improved transparency |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS594452B2 (en) | 1984-01-30 |
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