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Calcium hydroxide (data page)

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This page provides supplementary chemical data on calcium hydroxide.

Material Safety Data Sheet

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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

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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

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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

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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

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  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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