[go: up one dir, main page]

DE240085C - - Google Patents

Info

Publication number
DE240085C
DE240085C DENDAT240085D DE240085DA DE240085C DE 240085 C DE240085 C DE 240085C DE NDAT240085 D DENDAT240085 D DE NDAT240085D DE 240085D A DE240085D A DE 240085DA DE 240085 C DE240085 C DE 240085C
Authority
DE
Germany
Prior art keywords
glass
glasses
sodium
potassium
rubidium
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.)
Active
Application number
DENDAT240085D
Other languages
German (de)
Publication of DE240085C publication Critical patent/DE240085C/de
Active legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Das gewöhnliche Glas ist im wesentlichen Natrium-Calcium-Silikat. Es ist seit langem bekannt, daß Gläser, in welchen das Natrium durch Kalium ersetzt ist, die sogenannten KaIiglaser, sich durch gewisse wertvolle Eigenschaften auszeichnen. Dieselben werden z. B. wegen ihrer größeren Widerstandsfähigkeit gegen Hitze vielfach zur Herstellung wissenschaftlicher Apparate verwendet.The common glass is essentially sodium-calcium-silicate. It's been a long time known that glasses in which the sodium has been replaced by potassium, the so-called kale lasers, are characterized by certain valuable properties. The same are z. B. because of their greater resilience often used against heat in the manufacture of scientific apparatus. ίο Es wurde nun gefunden, daß auch die Kaligläser hierin noch übertroffen werden von Gläsern, welche Rubidium enthalten.ίο It has now been found that the potash glasses are also surpassed by Glasses containing rubidium. Beispielsweise wurden drei Glasproben hergestellt, deren Zusammensetzung durch die Formel M2O, CaO, 6SiO2 wiederzugeben ist. M bedeutet Natrium, Kalium, Rubidium. Die drei Gläser wurden dann auf ihre Schmelzbarkeit geprüft, indem beobachtet wurde, bei welcher Temperatur ein aus dem betreffenden Glase gefertigter Kegel vollständig zusammenschmolz. Es schmolz das Natriumglas bei etwa 800°, das Kaliumglas bei etwa 900.0, das Rubidiumglas erst oberhalb 10000. Das letztere ist also dem Kaliglas noch bedeutend überlegen.For example, three glass samples were produced, the composition of which is represented by the formula M 2 O, CaO, 6SiO 2 . M means sodium, potassium, rubidium. The three glasses were then tested for their fusibility by observing the temperature at which a cone made from the glass in question completely melted together. It melted the sodium glass at about 800 °, the potassium glass at about 900. 0, the Rubidiumglas only above 1,000 0th The latter is therefore still significantly superior to the potash glass. V Patent-Anspruch: ■V Patent claim: ■ Glas mit einem Gehalt an Rubidium.Glass containing rubidium.
DENDAT240085D Active DE240085C (en)

Publications (1)

Publication Number Publication Date
DE240085C true DE240085C (en)

Family

ID=499475

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT240085D Active DE240085C (en)

Country Status (1)

Country Link
DE (1) DE240085C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089525B (en) * 1958-04-23 1960-09-22 Corning Glass Works Alkali-lead-silicate glass with high specific electrical resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089525B (en) * 1958-04-23 1960-09-22 Corning Glass Works Alkali-lead-silicate glass with high specific electrical resistance

Similar Documents

Publication Publication Date Title
DE4428839C2 (en) Alkali-zinc-silicate glass-ceramics and glasses and process for producing the glass-ceramics
EP1985591B1 (en) Metal colloid-coloured glass ceramic and non-coloured glass which can be converted into a metal colloid coloured glass ceramic
DE10128250A1 (en) New hydrolytically stable glycolipid compounds having an alpha-C, N or S glycoside bond, useful as anticancer agents and immunostimulants
DE102013108216B3 (en) Use of magnesium oxide-aluminum oxide silica glass or glass ceramic containing phosphorus and specific transition metal component, for dental application
CN102143922A (en) Glass
DE1923729A1 (en) Glassy solder glasses
DE240085C (en)
DE2655332A1 (en) LAMPS FOR HIGH PERFORMANCE
DE1596855A1 (en) Compositions for making opaque glass-ceramics
DE2617155C3 (en) Glass based on SiO2 ZrO2 -Al2 O3 -LaO3 SrO-CaO-Na2 O -LJ2 O with increased electrical resistance, good chemical resistance in the temperature range from 90 to 150 degrees C and a linear expansion coefficient of 12 to 98 times 10 ~ 7 / degrees C, as well as its use
DE1596905A1 (en) Method of manufacturing a ceramic glass
DE1059157B (en) Optical glass with high fluorine and titanium content
DE19530030C2 (en) Use of a silicate glass for glass fibers, in particular micro glass fibers
DE845248C (en) Glass resistant to alkali fumes
US3917488A (en) High elastic modulus borate glass
DE2341929B2 (en) PHOTOTROPIC, CHEMICALLY HARDENABLE FOCUS GLASS BASED ON SILICOBORATE, SUITABLE FOR FUSING WITH PHOTOTROPIC SEALING GLASSES FOR BIFOCAL LENSES
DE2125898A1 (en) Glass-ceramic product and process for its manufacture
Hockett et al. Hexitol Anhydrides. 1 The Preparation and Proof of Structure of 1, 5, 3, 6-Dianhydromannitol (Neomannide). The Structure of Isomannide2
EP3907199B1 (en) Prestressing using gradient material
DE1421876C (en) Process for the production of an optical see glass with ny values from 63 to 71 and with refractive indices between 1.50 and 1.56
DE741190C (en) Lead-free glass
AT123618B (en) Heat-resistant glass and its method of manufacture.
DE694213C (en) Manufacture of a glass for physical purposes
RU2225851C1 (en) Glass for manufacturing fiber
DE230578C (en)