US799770A - Process of making lead carbonates. - Google Patents
Process of making lead carbonates. Download PDFInfo
- Publication number
- US799770A US799770A US25403805A US1905254038A US799770A US 799770 A US799770 A US 799770A US 25403805 A US25403805 A US 25403805A US 1905254038 A US1905254038 A US 1905254038A US 799770 A US799770 A US 799770A
- Authority
- US
- United States
- Prior art keywords
- lead
- carbonic acid
- basic
- precipitation
- carbonates
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title description 7
- 150000004649 carbonic acid derivatives Chemical class 0.000 title description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 15
- 238000001556 precipitation Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 230000007935 neutral effect Effects 0.000 description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 6
- PNZVFASWDSMJER-UHFFFAOYSA-N acetic acid;lead Chemical compound [Pb].CC(O)=O PNZVFASWDSMJER-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 4
- 229910000003 Lead carbonate Inorganic materials 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910000004 White lead Inorganic materials 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940046892 lead acetate Drugs 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/14—Compounds of lead
- C09C1/16—White lead
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G21/00—Compounds of lead
- C01G21/14—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Definitions
- the subject of the present invention consists in the manufacture of neutral or basic lead carbonates by treating solutions of lead acetate with carbonic acid, so as to be suitable to serve as white coloring-matter.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Paper (AREA)
- Color Printing (AREA)
Description
UNITED STATES PATENT OFFICE.
PROCESS ,QF MAKING LEAD CARBONATES.
Specification of Letters Patent.
Patented Sept. 19, 1905.
Application filed April 5,1905. Serial No. 254,038.
To all whom it may concern:
Be it known that I, ADOLF WULTZE, chemist, a subject of the King of Prussia, German Emperor, and a resident of Charlottenburg, near Berlin, Kingdom of Prussia, German Empire, have invented a new and useful Process of Manufacturing Lead Carbonates, of which the following is an exact specification.
The subject of the present invention consists in the manufacture of neutral or basic lead carbonates by treating solutions of lead acetate with carbonic acid, so as to be suitable to serve as white coloring-matter.
If carbonic acid is introduced into a diluted solution of sugar of lead, a precipitation of crystalline lead carbonate arises which contains about sixteen per cent. of carbonic acid. If carbonic acid is introduced into a diluted basic solution of sugar of lead, a precipitation of basic lead carbonate containing about thirteen to fourteen per cent. of carbonic acid is obtained. Furthermore, if carbonic acid is introduced under an increased pressure into a diluted solution of sugar of lead also a precipitation of neutral carbonate containing about sixteen per cent. of carbonic acid arises. A neutral lead carbonate with about sixteen per cent. of carbonic acid is in a striking manner also obtained when carbonic acid isintroduced under a higher pressure into a basic lead vinegar. All the carbonates so obtained are more or less coarse crystalline and are not suitable to serve as coloring-matter on want of every covering and illuminating power.
1 have now found that the height of the pressure and the basicity of the lead solution are of little importance, but that for obtaining a certain physical state which is condition for the lead carbonates being-suitable as coloring-matter the manner is decisive in which the carbonic acid comes in contact with the solutions of the lead acetates. I have asserted that if at the precipitation the carbonic acid is brought within a very short time-for instance, part of a secoudin contact with the liquid to be precipitated upon a higher pressure the formation of a coarse crystalline precipitation is excluded and lead carbonates arise which surpass with regard to their white color and covering power the best kinds on the market. Such a precipitation arises with the basic as in the solution of acetate is contained is suddenly connected to a reservoir in which the manifold quantity of carbonic acid is contained under a pressure of three to four atmospheres. In all cases the precipitation is then efiected in so short a time that a perfect amorphous highly-covering carbonate is obtained. It is already mentioned above that according to the obtained from neutral as well as from basic solutions of acetate. It is possible with the present process to obtain at will, according to the requirements of the market, neutral or basic carbonate from basic acetic solutions of lead. To obtain basic or neutral carbonate depends thereon whether the carbonic acid is introduced to that point where the basic sugar of lead is neutral or begins to become somewhat acetic or whether the carbonic acid is allowed to act to such a degree that any precipitation does no more take place from the solution. In the latter case the freed acetic acid seems to dissolve the precipitated hydroxid under forming back the solution of sugar of lead, wherefrom the neutral carbonate is then formed. Furthermore, it can be also obtained at will to manufacture, according to the requirements of the market, heavy or light white lead by employing stronger or thinner solutions, which equally behave with regard to the white color and covering power of the product obtained. My experiments have proved that such qualities of White lead could hitherto not be obtained by any of the known methods of manufacturing.
Having thus fully described the nature of this invention, whatIdesire to secure by Letters Patent of the United States is Process for manufacturing lead carbonate consisting in acting of carbonic acid upon lead process indicated these precipitations can be acetates and producing at the same-time a r In witness whereof time hereunto set my sudden overpressure being at least one atmoshand in the presence of two Witnesses. phere at the place of precipitating the lead carbonate, whereby the latter is precipitated ADOLF WULTZE' 5 within a very short time and suddenly, thereby Witnesses:
preventing the precipitation from becoming HENRY HASPER,
crystalline, substantially as described. WOLDEMAR HAUPT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25403805A US799770A (en) | 1905-04-05 | 1905-04-05 | Process of making lead carbonates. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25403805A US799770A (en) | 1905-04-05 | 1905-04-05 | Process of making lead carbonates. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US799770A true US799770A (en) | 1905-09-19 |
Family
ID=2868256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US25403805A Expired - Lifetime US799770A (en) | 1905-04-05 | 1905-04-05 | Process of making lead carbonates. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US799770A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2807858A (en) * | 1955-08-26 | 1957-10-01 | Argenta Products Co | Process of manufacturing synthetic pearl essence |
| WO2012013784A1 (en) | 2010-07-29 | 2012-02-02 | Centre National De La Recherche Scientifique (C.N.R.S) | Regulation of glypican 4 activity to modulate the fate of stem cells and uses thereof |
| US9726330B2 (en) | 2013-12-20 | 2017-08-08 | Cree, Inc. | LED lamp |
-
1905
- 1905-04-05 US US25403805A patent/US799770A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2807858A (en) * | 1955-08-26 | 1957-10-01 | Argenta Products Co | Process of manufacturing synthetic pearl essence |
| WO2012013784A1 (en) | 2010-07-29 | 2012-02-02 | Centre National De La Recherche Scientifique (C.N.R.S) | Regulation of glypican 4 activity to modulate the fate of stem cells and uses thereof |
| US9726330B2 (en) | 2013-12-20 | 2017-08-08 | Cree, Inc. | LED lamp |
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