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Hydrogen peroxide is a chemical compound with the formula H 2 O 2. In its pure form, it is a very pale blue [ 5 ] liquid that is slightly more viscous than water . It is used as an oxidizer , bleaching agent, and antiseptic , usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
Hydrogen peroxide: Liquid H 2 O 2: −187.8 Phosphoric acid: Liquid H 3 PO 4: −1288 Hydrogen cyanide: Gas HCN 130.5 Hydrogen bromide: Liquid HBr −36.3 Hydrogen chloride: Gas HCl −92.30 Hydrogen chloride: Aqueous HCl −167.2 Hydrogen fluoride: Gas HF −273.3 Hydrogen iodide: Gas HI 26.5 Iodine: Solid I 2: 0 Iodine: Gas I 2: 62.438 Iodine ...
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
The standard Gibbs free energy of formation (G f °) of a compound is the change of Gibbs free energy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 bar of pressure and the specified temperature, usually 298.15 K or 25 °C).
Vapour-liquid equilibrium of 2-propanol/water showing positive azeotropic behaviour. An azeotrope (/ ə ˈ z iː ə ˌ t r oʊ p /) [1] or a constant heating point mixture is a mixture of two or more liquids whose proportions cannot be changed by simple distillation. [2]
Hydrogen peroxide (H 2 O 2) is a common disinfectant and readily decomposes to form water and oxygen. Trioxidane (H 2 O 3) is rare and readily decomposes into water and singlet oxygen. Tetraoxidane (H 2 O 4) has been synthesized by reaction among peroxy radicals at low temperature. [1]
Organic peroxides do not usually produce oxygen as part of the decomposition process, so there is little risk of enhanced burning rates due to oxygen enrichment. This is unlike the decomposition of hydrogen peroxide and solid oxidizers that can liberate oxygen.
In thermodynamics, an activity coefficient is a factor used to account for deviation of a mixture of chemical substances from ideal behaviour. [1] In an ideal mixture, the microscopic interactions between each pair of chemical species are the same (or macroscopically equivalent, the enthalpy change of solution and volume variation in mixing is zero) and, as a result, properties of the mixtures ...