### potassium hydroxide

Molar enthalpy (heat) of fusion Δ fus H (kJ/mol): 75 Enthalpy (heat) of vaporization Δ vap H (kJ/mol): 1289 Standard molar enthalpy (heat) of formation Δ f H 0 (29815 K, kJ/mol):-226 (g) Standard molar entropy S 0 (29815 K, J/molK): 238 (g) Molar heat capacity at constant pressure C p (29815 K, J/molK): 49 (g) LD 50 (mg/kg): 365 ....

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### Selective Catalytic Reduction

Specific heat @25°C: , Selective catalytic reduction of NOx with ammonia was first discovered over a platinum catalyst , or even mobile diesel engines operated with high sulfur fuels At low exhaust temperatures, the formation of ammonium bisulfate and ammonium sulfate, Equation (12) and (13), leads to catalyst masking and deactivation ....

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### Chemistry Lab/Physical Properties

The molar heat capacity is also intensive, but is based on heat capacity per unit amount instead of mass Specific heat is often used in calorimetry (See: Chem Lab/Thermodynamics) to calculate heat transfer $q = m\cdot \Delta T\cdot C_p$, where q represents heat flow A notable specific heat is that of water, 4184 J/g*K or 1 Cal/g ....

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### Sulfuric acid

Sulfuric acid (alternative spelling sulphuric acid), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula H 2 SO 4It is a colorless, odorless, and viscous liquid that is soluble in water and is synthesized in reactions that are highly exothermic...

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### Sodium nitrate | NaNO3

In humans, ingested nitrate is rapidly absorbed from the proximal small bowel and distributed throughout the body Nitrate then enters the large bowel from the blood, where it is rapidly converted to highly reactive nitrite, in part by fecal microorganismsThe formed nitrite is reabsorbed into the blood, where it reacts with the ferrous (Fe2+) iron of deoxyhemoglobin, forming methemoglobin ....

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### Ammonium sulfate

Us The primary use of ammonium sulfate is as a fertilizer for alkaline soilsIn the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth The main disadvantage to the use of ammonium sulfate is its low nitrogen content relative to ammonium nitrate, which elevates transportation costs...

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### Cite as: Cold Spring Harb

Proteins are generally stable in ammonium sulfate and can be safely stored as an ammonium sulfate suspension for several days at 4°C at this stage of a purification procedure 10 If necessary, centrifuge the resultant protein solution at 10,000g for 15 minutes to remove any remaining insoluble material (eg, denatured protein)...

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### Volumetric analysis

Ammonium NH 4 + Test Warm ammonium compound with NaOH Test vapours , If a solution of any sulphate is added to a solution of a group 2 metal compound then a precipitate is likely Group 2 ion in solution : , The specific heat capacity and density of water are used (and not of HCl)...

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### ammonium sulfate

ammonium sulfate: Formula: H 8 N 2 O 4 S: Molar Mass: 132134: , Heat capacity at saturation pressure Heat capacity at saturation pressure (Crystal 2 in equilibrium with Gas) as a function of Temperature Temperature from 931 K to 22337 K ....

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### Groundwater

Physical and chemical environment Substrate and sediment In the shallow aquifers where generally groundwater is located, typically, there is soil, sand, plant roots, hardpan and low permeability bedrock Temperature The temperature of groundwater is quite steady because the specific heat capacity of water is high and also because the soil, rock and up layer water protect groundwater from ....

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### Ammonium sulfate | (NH4)2SO4

Ammonium sulfate | (NH4)2SO4 or H8N2O4S | CID 6097028 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ....

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### China High Purity 1066

Ammonium Bicarbonate Food Grade, Ammonium Bicarbonate for Biscuits Industry, Ammonium Chloride 995% Industrial Grade for Sal manufacturer / supplier in China, offering High Purity 1066-33-7 Food Grade Ammonium Bicarbonate, Magnesium Chloride Flakes/Pearls, 2016 Most Competitive of Magnesium Sulphate Heptahydrate and so on...

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