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  2. Potassium hydrogen phthalate - Wikipedia

    en.wikipedia.org/wiki/Potassium_hydrogen_phthalate

    The pKa of KHP is 5.4, so its pH buffering range would be 4.4 to 6.4; however, due to the presence of the second acidic group that bears the potassium ion, the first pKa also contributes to the buffering range well below pH 4.0, which is why KHP is a good choice for use as a reference standard for pH 4.00.

  3. Boiling points of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Boiling_points_of_the...

    Celsius Fahrenheit; 1 H hydrogen (H 2) use: 20.271 K: ... 19 K potassium; use: 1032 K: 759 °C: ... For the equivalent in degrees Fahrenheit °F, see: Boiling points ...

  4. List of boiling and freezing information of solvents - Wikipedia

    en.wikipedia.org/wiki/List_of_boiling_and...

    Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) K f (°C⋅kg/mol) Data source; Aniline: 184.3 3.69 –5.96 –5.87 K b & K f [1] Lauric acid:

  5. Critical points of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Critical_points_of_the...

    Boca Raton, Florida, 2003; Section 6, Fluid Properties; Critical Constants. Also agrees with Celsius values from Section 4: Properties of the Elements and Inorganic Compounds, Melting, Boiling, Triple, and Critical Point Temperatures of the Elements Estimated accuracy for Tc and Pc is indicated by the number of digits.

  6. Heats of vaporization of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Heats_of_vaporization_of...

    1 H hydrogen (H 2) use (H 2) 0. ... 19 K potassium; use: 76.90 ... Values refer to the enthalpy change in the conversion of liquid to gas at the boiling point (normal ...

  7. Boiling point - Wikipedia

    en.wikipedia.org/wiki/Boiling_point

    There are two conventions regarding the standard boiling point of water: The normal boiling point is commonly given as 100 °C (212 °F) (actually 99.97 °C (211.9 °F) following the thermodynamic definition of the Celsius scale based on the kelvin) at a pressure of 1 atm (101.325 kPa).

  8. Template:Periodic table (boiling point) - Wikipedia

    en.wikipedia.org/wiki/Template:Periodic_table...

    Values are in kelvin K and degrees Celsius °C, rounded For the equivalent in degrees Fahrenheit °F, see: Boiling points of the elements (data page) Some values are predictions

  9. Melting points of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Melting_points_of_the...

    Celsius Fahrenheit Comments 1 H hydrogen (H 2) use: ... melting point 302.9146 K ... Boiling points of the elements (data page) ...

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