US324650A - Gold and other metallic amalgam - Google Patents
Gold and other metallic amalgam Download PDFInfo
- Publication number
- US324650A US324650A US324650DA US324650A US 324650 A US324650 A US 324650A US 324650D A US324650D A US 324650DA US 324650 A US324650 A US 324650A
- Authority
- US
- United States
- Prior art keywords
- gold
- mass
- mercury
- metallic
- amalgam
- 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
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title description 34
- 239000010931 gold Substances 0.000 title description 34
- 229910052737 gold Inorganic materials 0.000 title description 34
- 229910000497 Amalgam Inorganic materials 0.000 title description 18
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 22
- 229910052753 mercury Inorganic materials 0.000 description 22
- 229910052709 silver Inorganic materials 0.000 description 16
- 239000004332 silver Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000005864 Sulphur Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 125000004429 atoms Chemical group 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000010970 precious metal Substances 0.000 description 4
- 239000012047 saturated solution Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
- 229910001020 Au alloy Inorganic materials 0.000 description 2
- 241000333074 Eucalyptus occidentalis Species 0.000 description 2
- 210000004746 Tooth Root Anatomy 0.000 description 2
- 230000001464 adherent Effects 0.000 description 2
- -1 chalk Chemical compound 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 230000002939 deleterious Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003353 gold alloy Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002335 preservative Effects 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Preparations (AREA)
Description
llaiirnn STATES P TENT Orrrce,
SOLOMON P. BUATT, OF BASTROP, LOUISIANA.
GOLD AND OTHER METALLIC AMALGAM.
QPECIFICATION forming part of Letters Patent No. 324,650, dated August 18, 1885.
Application liled October 22, 1884. (X0 specimens.)
T0 aZZ whom, it may concern:
Be it known that I, SOLOMON P. BUlrrr, of Bastrop, in the parish of M orehouse and State of Louisiana, have discovered certain new and useful Improvements in Gold and other Metallic Amalgams, of which the following is a full, clear, and exact description.
This discovery relates to gold and other amalgams suitable for dental fillings and other purposes, and comprises a novel process, substantially as hereinafter described, whereby pure gold or any combination of metallic gold with silver, or pure silver, may be reduced to a plastic mass with mercury and a crystallized solid be obtained which is free from all excess of atom equivalents of mercury, chemical impurities or metallic oxides inj urious to health, and which shall retain the original shade or color and other desirable qualities of the gold or precious metal.
I take, for instance, gold and reduce the same by any appropriate means into a powder or fine particles, and amalgamate with mercury; or take gold alloyed or combined in any manner with metallic silver or pure silver, and after reducing the same to fine particles incorporate it with a mercurial solution of gold instead'of pure mercury, or otherwise apply the same to produce a like result, and to'an extent that will render the above -named metallic particles adherent. Either or any of these masses are then placed in a mortar, together with saturated solution of sulphurous-acid gas in water, and the mass thoroughly triturated with a pestle, adding chalk until all excess of mercury is absorbed, and subsequently washing the mass with water. Alcohol is then added in sufficient quantity to cover the mass, and the whole rubbed with the pestle until the mass becomes plastic, when it is again washed with water and ready for application to the purpose for which the amalgam is intended, and when the mass has been molded into the desired form and set, it is burnished with aburnishing-tool until the color of the precious metal appears on its surface. By this process of combining gold, gold alloy, or silver and mercury with sulphur, chalk, and alcohol, in the manner described,the elimination of all free mercury, or excess of its atom equivalents, is augment.-
ed, and the same remain associated as a deli nitely-proportioned chemical compound, and
when quiescent speedily crystallizeinto a solid with the metal gold predominant in color, when by friction the surface is condensed and the mercurial equivalents set free by the action of the latent heat during the operation. Technically detailed, the sulphur dissolves the unassociated mercury, and while in this condition the chalkcombines with it, the wa ter holds the combination in suspension and conveys it from the mass by decantat-ion, while the alcohol facilitates crystallization.
For dental purposes the amalgam has many advantages. Thus, it combines all the desirable properties of gold with those of amalgams as preservative plastic dental fillings, while free from the objectionable peculiarities of both. By its use, in fact, there will be no necessity of extracting even a crownless dental root, excepting for the cure of special diseases peculiar to the mouth, which renders it greatly superior to other materials used by dentists for a like purpose, while it is equally beneficial to both patient and operator, economizing time by the simplicity and ease of its application, dispensing with the mallet, rubber dam, and other pain-producing instruments, such as used for inserting solid-metal dental fillings, and in nowise exposing the system to the danger of mercurial action, as other mercurial amalgams are liable to do, and from which heat, even if raised to a volatilizing point, will not expel the deleterious properties without rendering the mass porous or disintegrating it.
Having thus described my discovery, I claim as new and desire to secure by Letters Patent 1. The process, herein described, of producing the amalgam, which consists in first reducing into line particles the gold, gold alloyed with metallic silver or pure silver, and amalgamating or incorporating the same with mercury or with a mercurial solution of gold, or otherwise applying the same to produce a like result, according to the nature of the base, then adding a saturated solution of sulphurous-acid gas in water and triturating the mass, also adding chalk thereto to absorb all excess of mercury, then washing with water, afterward adding alcohol to the mass and rubhing until the Whole is plastic, and subsea plastic mass, for use essentially as herein quently washing the mass,which is then ready set forth. for nse,t0 be molded or set and burnished, as required, substantially as specified.
2. The Within-described amalgam, in which. \Vitnesses: gold or gold and silver are combined with I FRANK VAUGHAN, mercury, sulphur, and chalk, and Worked into 1 WV; E. STARSMY.
SOLOMON P. BUATT.
Publications (1)
Publication Number | Publication Date |
---|---|
US324650A true US324650A (en) | 1885-08-18 |
Family
ID=2393777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US324650D Expired - Lifetime US324650A (en) | Gold and other metallic amalgam |
Country Status (1)
Country | Link |
---|---|
US (1) | US324650A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4326889A (en) * | 1978-11-30 | 1982-04-27 | W. C. Heraeus Gmbh | Dental composition from gold particles, terpineol and ethyl cellulose |
US4814008A (en) * | 1985-04-15 | 1989-03-21 | Itzhak Shoher | Dental material |
-
0
- US US324650D patent/US324650A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4326889A (en) * | 1978-11-30 | 1982-04-27 | W. C. Heraeus Gmbh | Dental composition from gold particles, terpineol and ethyl cellulose |
US4814008A (en) * | 1985-04-15 | 1989-03-21 | Itzhak Shoher | Dental material |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Nakagawa et al. | Effects of fluoride and dissolved oxygen concentrations on the corrosion behavior of pure titanium and titanium alloys | |
JPS59130805A (en) | Powdery dental substance, | |
US2707679A (en) | Methods of producing zirconium and titanium | |
US324650A (en) | Gold and other metallic amalgam | |
FR2502182A1 (en) | AMALGAM FOR DENTAL USE BASED ON SILVER AND TIN CONTAINING SELENIUM | |
US3975192A (en) | Dental alloy and amalgam | |
Espevik | Creep and phase transformation in dental amalgam | |
JP3312733B2 (en) | Amalgam for dental filling and method for adjusting the synthesis of this amalgam | |
US7546A (en) | Improvement in processes for amalgamating gold | |
JPS5921378B2 (en) | Dental alloys and amalgams | |
US249880A (en) | William g | |
Espevik | Dental amalgam | |
JPH0375620B2 (en) | ||
US1232216A (en) | Process for extracting gold and silver from ore containing gold, silver, and manganese dioxid. | |
Osborne et al. | Compressive strength of amalgam triturated by a high-speed amalgamator and by an ultrahigh-speed mixer | |
Hepburn | Notes on dental metallurgy | |
JENSEN | Decrease of γ1 lattice constant with time in dental silver amalgam | |
US2218755A (en) | Composition of matter and method of preparation | |
US447344A (en) | Process of preparing ores for amalgamation | |
Son et al. | AN ELECTROCHEMICAL STUDY BY USING A POTENTIOSTAT ON THE CORROSION OF AMALGAMS IN SALIVA | |
US3762917A (en) | Alloy for dental amalgam | |
US19916A (en) | Improvement in bases for artificial teeth | |
US1118944A (en) | Process of recovering rusty gold and native platinum metals. | |
US1018438A (en) | Process for the precipitation of precious metals from cyanid solutions. | |
Hepburn | Notes on Dental Metallurgy, for the Use of Dental Students and Practitioners |