Calcium hydroxide (data page)

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This page provides supplementary chemical data on calcium hydroxide.

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.

Structure and properties

Structure and properties
Index of refraction, nD ?
Abbe number ?
Dielectric constant, εr ? ε0 at ? °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility -22 x10−6 cm3 mol−1[1]
Density 2.2 g cm−3[2]
Solubility in H2O 0.16020 g/100 g[2]
pH (at 20 °C) 12.4-12.6[3]

Thermodynamic properties

Phase behavior
Triple point ? K (? °C), ? Pa
Critical point ? K (? °C), ? Pa
Std enthalpy change
of fusion, ΔfusHo 		? kJ/mol
Std entropy change
of fusion, ΔfusSo 		? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		? kJ/mol
Std entropy change
of vaporization, ΔvapSo 		? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid 		-985.2 kJ/mol[4]
Standard molar entropy,
Sosolid 		83.4 J/(mol K)[4]
Heat capacity, cp 87.5 J/(mol K)[4]
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		? kJ/mol
Standard molar entropy,
Soliquid 		? J/(mol K)
Heat capacity, cp ? J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas 		? kJ/mol
Standard molar entropy,
Sogas 		? J/(mol K)
Heat capacity, cp ? J/(mol K)

Spectral data

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments 		 

References

  1. ^ CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. Lide, David R. (84th ed.). Boca Raton, Fla.: CRC Press. 2003. pp. 4–131. ISBN 0849304849. OCLC 52548731.{{cite book}}: CS1 maint: others (link)
  2. ^ a b CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. Lide, David R. (84th ed.). Boca Raton, Fla.: CRC Press. 2003. pp. 4–49. ISBN 0849304849. OCLC 52548731.{{cite book}}: CS1 maint: others (link)
  3. ^ "MSDS - C7887". www.sigmaaldrich.com. Retrieved 2019-11-18.
  4. ^ a b c CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. Lide, David R. (84th ed.). Boca Raton, Fla.: CRC Press. 2003. pp. 5–10. ISBN 0849304849. OCLC 52548731.{{cite book}}: CS1 maint: others (link)
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