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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.
Sodium hydroxide, also known as lye and caustic soda, [1] [2] is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na + and hydroxide anions OH −. Sodium hydroxide is a highly corrosive base and alkali that decomposes lipids and proteins at ambient temperatures and may cause severe ...
[2] [3] The components of an oxygen absorber vary according to intended use, the water activity of the product being preserved, and other factors. Often the oxygen absorber or scavenger is enclosed in a porous sachet or packet but it can also be part of packaging films and structures. [4] Others are part of a polymer structure. [5]
N 2 H 4: Hypergolic, common 2862 1.36 2992 1.21 1781 3369 1.42 2993 1.22 1770 N 2 H 4:UDMH 50:50 Hypergolic, common 2831 1.98 3095 1.12 1747 3349 2.15 3096 1.20 1731 N 2 H 4:Be 80:20: 3209 0.51 3038 1.20 1918 N 2 H 4:Be 76.6:23.4 3849 0.60 3230 1.22 1913 B 5 H 9: 2927 3.18 3678 1.11 1782 3513 3.26 3706 1.11 1781 NO:N 2 O 4 25:75 MMH: 2839 2.28 ...
Alkaline water electrolysis is a type of electrolysis that is characterized by having two electrodes operating in a liquid alkaline electrolyte. Commonly, a solution of potassium hydroxide (KOH) or sodium hydroxide (NaOH) at 25-40 wt% is used. [ 6 ]
The process has a high energy consumption, for example around 2,500 kWh (9,000 MJ) of electricity per tonne of sodium hydroxide produced. Because the process yields equivalent amounts of chlorine and sodium hydroxide (two moles of sodium hydroxide per mole of chlorine), it is necessary to find a use for these products in the same proportion ...
One of the most efficient mixtures, oxygen and hydrogen, suffers from the extremely low temperatures required for storing liquid hydrogen (around 20 K or −253.2 °C or −423.7 °F) and very low fuel density (70 kg/m 3 or 4.4 lb/cu ft, compared to RP-1 at 820 kg/m 3 or 51 lb/cu ft), necessitating large tanks that must also be lightweight and ...
Liquid-Plumr is a chemical drain opener made of 0.5–2% sodium hydroxide and 5–10% sodium hypochlorite, [1] and a surfactant, produced by Clorox. The product is safe for septic systems , PVC , plastic, and copper pipes , although is not recommended for and can damage rubber piping.