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<p>[QUOTE="komokwa, post: 4425013, member: 301"]<font size="6"><b>Jena glass</b></font></p><p>Alternate titles: Jenaer Glas</p><p><a href="https://www.britannica.com/print/article/302532" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/print/article/302532" rel="nofollow">Print</a> Cite Share More</p><p><br /></p><p>By <a href="https://www.britannica.com/editor/The-Editors-of-Encyclopaedia-Britannica/4419" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/editor/The-Editors-of-Encyclopaedia-Britannica/4419" rel="nofollow">The Editors of Encyclopaedia Britannica</a> • <a href="https://www.britannica.com/art/Jena-glass/additional-info#history" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/art/Jena-glass/additional-info#history" rel="nofollow">Edit History</a></p><p>Related Topics:</p><p><br /></p><p><a href="https://www.britannica.com/technology/glass" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/technology/glass" rel="nofollow">glass</a></p><p><a href="https://www.britannica.com/facts/Jena-glass" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/facts/Jena-glass" rel="nofollow">See all related content →</a></p><p><br /></p><p>Jena glass, German Jenaer Glas, fine-quality <a href="https://www.britannica.com/technology/glass" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/technology/glass" rel="nofollow">glass</a> with improved resistance to heat and shock, suited for chemical <a href="https://www.britannica.com/dictionary/ware" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/dictionary/ware" rel="nofollow">ware</a>. It was developed for <a href="https://www.britannica.com/technology/thermometer" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/technology/thermometer" rel="nofollow">thermometers</a> and measuring vessels, optical ware, and scientific and industrial uses.</p><p><br /></p><p>Jena glass was first produced by the German glass chemist <a href="https://www.britannica.com/biography/Friedrich-Otto-Schott" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/biography/Friedrich-Otto-Schott" rel="nofollow">Otto Schott</a>, who, with <a href="https://www.britannica.com/biography/Ernst-Abbe" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/biography/Ernst-Abbe" rel="nofollow">Ernst Abbe</a> and <a href="https://www.britannica.com/biography/Carl-Zeiss" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/biography/Carl-Zeiss" rel="nofollow">Carl Zeiss,</a> founded Schott and Associates Glass Technology Laboratory in <a href="https://www.britannica.com/place/Jena-Germany" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/place/Jena-Germany" rel="nofollow">Jena</a>, Germany, in 1884. The early Jena glass—a <a href="https://www.britannica.com/science/sodium" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/science/sodium" rel="nofollow">sodium</a>–<a href="https://www.britannica.com/science/magnesium" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/science/magnesium" rel="nofollow">magnesium</a>–<a href="https://www.britannica.com/science/aluminum" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/science/aluminum" rel="nofollow">aluminum</a>–<a href="https://www.britannica.com/science/zinc" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/science/zinc" rel="nofollow">zinc</a> borosilicate containing some <a href="https://www.britannica.com/science/boron-chemical-element" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/science/boron-chemical-element" rel="nofollow">boron</a> trioxide in place of part of the <a href="https://www.britannica.com/science/silica" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/science/silica" rel="nofollow">silica</a> of older glasses—foreshadowed later borosilicates, which include <a href="https://www.britannica.com/technology/Pyrex" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.britannica.com/technology/Pyrex" rel="nofollow">Pyrex</a>.[/QUOTE]</p><p><br /></p>
[QUOTE="komokwa, post: 4425013, member: 301"][SIZE=6][B]Jena glass[/B][/SIZE] Alternate titles: Jenaer Glas [URL='https://www.britannica.com/print/article/302532']Print[/URL] Cite Share More By [URL='https://www.britannica.com/editor/The-Editors-of-Encyclopaedia-Britannica/4419']The Editors of Encyclopaedia Britannica[/URL] • [URL='https://www.britannica.com/art/Jena-glass/additional-info#history']Edit History[/URL] Related Topics: [URL='https://www.britannica.com/technology/glass']glass[/URL] [URL='https://www.britannica.com/facts/Jena-glass']See all related content →[/URL] Jena glass, German Jenaer Glas, fine-quality [URL='https://www.britannica.com/technology/glass']glass[/URL] with improved resistance to heat and shock, suited for chemical [URL='https://www.britannica.com/dictionary/ware']ware[/URL]. It was developed for [URL='https://www.britannica.com/technology/thermometer']thermometers[/URL] and measuring vessels, optical ware, and scientific and industrial uses. Jena glass was first produced by the German glass chemist [URL='https://www.britannica.com/biography/Friedrich-Otto-Schott']Otto Schott[/URL], who, with [URL='https://www.britannica.com/biography/Ernst-Abbe']Ernst Abbe[/URL] and [URL='https://www.britannica.com/biography/Carl-Zeiss']Carl Zeiss,[/URL] founded Schott and Associates Glass Technology Laboratory in [URL='https://www.britannica.com/place/Jena-Germany']Jena[/URL], Germany, in 1884. The early Jena glass—a [URL='https://www.britannica.com/science/sodium']sodium[/URL]–[URL='https://www.britannica.com/science/magnesium']magnesium[/URL]–[URL='https://www.britannica.com/science/aluminum']aluminum[/URL]–[URL='https://www.britannica.com/science/zinc']zinc[/URL] borosilicate containing some [URL='https://www.britannica.com/science/boron-chemical-element']boron[/URL] trioxide in place of part of the [URL='https://www.britannica.com/science/silica']silica[/URL] of older glasses—foreshadowed later borosilicates, which include [URL='https://www.britannica.com/technology/Pyrex']Pyrex[/URL].[/QUOTE]
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