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In China, there were many different weighting standards of tael depending on the region or type of trade. In general the silver tael weighed around 40 grams (1.3 ozt). The most common government measure was the Kuping (庫平; kùpíng; 'treasury standard') tael, weighing 37.5 grams (1.21 ozt
Units of solubility are given in grams of substance per 100 millilitres of water (g/100 ml), unless shown otherwise. The substances are listed in alphabetical order. The substances are listed in alphabetical order.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
2 teaspoons = 1 dessertspoon: dessertspoon [23] ‡ dsp., dssp. or dstspn. 2 tsp 1 ⁄ 3: 9.85784 tablespoon: tbsp. or T. 1 ⁄ 16 cup 1 ⁄ 2: 14.7868 2 tablespoons = 1 fluid ounce fluid ounce: fl.oz. or oz. 1 ⁄ 8 cup 1 29.5735 2 fluid ounce = 1 wineglass wineglass‡ wgf. 1 ⁄ 4 cup 2 59.1471 2 wineglasses = 1 teacup gill‡ or teacup ...
The structure of sodium oxide has been determined by X-ray crystallography.Most alkali metal oxides M 2 O (M = Li, Na, K, Rb) crystallise in the antifluorite structure.In this motif the positions of the anions and cations are reversed relative to their positions in CaF 2, with sodium ions tetrahedrally coordinated to 4 oxide ions and oxide cubically coordinated to 8 sodium ions.
Trisodium phosphate (TSP) is an inorganic compound with the chemical formula Na 3 P O 4. It is a white, granular or crystalline solid, highly soluble in water, producing an alkaline solution. TSP is used as a cleaning agent , builder , lubricant , food additive , stain remover , and degreaser .
60:40 mixture of sodium nitrate and potassium nitrate is a liquid between 260–550 °C (500–1,022 °F). It has a heat of fusion of 161 J/g, [ 3 ] and a heat capacity of 1.53 J/(g·K). [ 4 ]
In 2014 researchers identified a liquid sodium–cesium alloy that operates at 50 °C (122 °F) and produced 420 milliampere-hours per gram. The new material was able to fully coat, or "wet," the electrolyte. After 100 charge/discharge cycles, a test battery maintained about 97% of its initial storage capacity.