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The term "cryoscopy" means "freezing measurement" in Greek. Freezing point depression is a colligative property, so ΔT depends only on the number of solute particles dissolved, not the nature of those particles. Cryoscopy is related to ebullioscopy, which determines the same value from the ebullioscopic constant (of boiling point elevation).
Crystal of potassium alum, KAl(SO 4) 2 ·12H 2 O. An alum (/ ˈ æ l ə m /) is a type of chemical compound, usually a hydrated double sulfate salt of aluminium with the general formula X Al(SO 4) 2 ·12 H 2 O, such that X is a monovalent cation such as potassium or ammonium. [1] By itself, "alum" often refers to potassium alum, with the ...
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: 298.9 44 ...
If a gap exists between the solidus and liquidus it is called the freezing range, and within that gap, the substance consists of a mixture of solid and liquid phases (like a slurry). Such is the case, for example, with the olivine ( forsterite - fayalite ) system, which is common in Earth's mantle .
Aluminium sulfate is sometimes called alum or papermaker's alum in certain industries. However, the name " alum " is more commonly and properly used for any double sulfate salt with the generic formula X Al(SO 4 ) 2 ·12H 2 O , where X is a monovalent cation such as potassium or ammonium .
T m = melting or freezing temperature of the liquid (in kelvins), T 0 = initial temperature of the mold (in kelvins), ΔT s = T pour − T m = superheat (in kelvins), L = latent heat of fusion (in [J·kg −1]), k = thermal conductivity of the mold (in [W·m −1 ·K −1)]), ρ = density of the mold (in [kg·m −3]), c = specific heat of the ...
Aluminium nitrate is a strong oxidizing agent. It is used in tanning leather, antiperspirants, corrosion inhibitors, extraction of uranium, petroleum refining, and as a nitrating agent.
Triple point? K (? °C), ? Pa Critical point: 625.7 K (352.6 °C), 2.600 MPa Std enthalpy change of fusionΔ fus H o? kJ/mol Std entropy change of fusionΔ fus S o? J/(mol·K) Std enthalpy change of vaporizationΔ vap H o? kJ/mol Std entropy change of vaporizationΔ vap S o? J/(mol·K) Solid properties Std enthalpy change of formation Δ f H o ...