Natrium sulfat: Perbedaan antara revisi
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===Industri komoditas===
Harganya di AS yang hanya $30 per ton pada tahun 1970, hingga $90 per ton untuk kualitas kue garam, dan $130 untuk kualitas yang lebih baik, natrium sulfat adalah bahan yang sangat murah. Penggunaan terbesar adalah sebagai [[Bahan pengisi|pengisi]] dalam bubuk deterjen rumah tangga, yang mengkonsumsi kira-kira 50% dari produksi dunia. Penggunaan ini berkurang karena konsumen domestik semakin beralih ke deterjen padat atau cair yang tidak mengandung natrium sulfat.<ref name='ceh'/>
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▲Another formerly major use for sodium sulfate, notably in the US and Canada, is in the [[Kraft process]] for the manufacture of [[wood pulp]]. Organics present in the "black liquor" from this process are burnt to produce heat, needed to drive the [[Redox|reduction]] of sodium sulfate to [[sodium sulfide]]. However, due to advances in the thermal efficiency of the Kraft recovery process in the early 1960s, more efficient sulfur recovery was achieved and the need for sodium sulfate makeup was drastically reduced.<ref>{{cite book|first = Gary|last = Smook|title = Handbook for Pulp and Paper Technologists|url = http://imisrise.tappi.org/TAPPI/Products/02/SMO/0202SMOOK4.aspx|year = 2002|page = 143|url-status = live|archive-url = https://web.archive.org/web/20160807043026/http://imisrise.tappi.org/TAPPI/Products/02/SMO/0202SMOOK4.aspx|archive-date = 2016-08-07}}</ref> Hence, the use of sodium sulfate in the US and Canadian pulp industry declined from 1,400,000 tonnes per year in 1970 to only approx. 150,000 tonnes in 2006.<ref name='ceh'/>
The [[glass]] industry provides another significant application for sodium sulfate, as second largest application in Europe. Sodium sulfate is used as a [[fining agent]], to help remove small air bubbles from molten glass. It fluxes the glass, and prevents scum formation of the glass melt during refining. The glass industry in Europe has been consuming from 1970 to 2006 a stable 110,000 tonnes annually.<ref name='ceh'/>
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