| It most commonly occurs as a crystalline decahydrate, which readily effloresces to form a white powder, the monohydrate. |
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| The solution is then cooled to recrystallize nearly pure sodium carbonate decahydrate. |
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| With an annual production of 6 million tonnes, the decahydrate is a major commodity chemical product. |
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| Bulk sodium sulfate is usually purified via the decahydrate form, since the anhydrous form tends to attract iron compounds and organic compounds. |
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| Add sodium tetraborate decahydrate to one liter of warm distilled water until saturation is reached then cool to room temperature. |
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| Glauber's salt, the decahydrate, was historically used as a laxative. |
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