CALCIUM PHOSPHATE - (7758-87-4)

introduzione

Nome: calcium phosphate
* IUPAC
Numero CAS: 7758-87-4
Formula chimica: Ca3(PO4)2
Massa molare: 310.176722 g
Percentuale di massa: Ca 38.763 %; P 19.971 %; O 41.265 % 

Classificazione

• inorganico

Usi / Funzione

• "...is the chief source of phosphate fertilizers, without which farmers could not hope to maintain the large crop harvests required to feed the world's growing population." 1

solubilità

Ksp:2.07·10-33 2

bonding

Termochimica

ΔHf° (s beta): -984.9 kcal/mol 3 = -4,120.82 kJ/mol
ΔHf° (s alpha): -982.3 kcal/mol 3 = -4,109.94 kJ/mol
S° (s beta): 56.4 cal/(mol•K) 4 = 235.98 J/(mol•K)
S° (s alpha): 57.58 cal/(mol•K) 4 = 240.91 J/(mol•K)
ΔGf° (s beta): -928.5 kcal/mol 5 = -3,884.84 kJ/mol
ΔGf° (s alpha): -926.3 kcal/mol 5 = -3,875.64 kJ/mol

reazioni

Per maggiori informazioni

fonti

(1) - Brady, James E. and Senese, Fred. Chemistry: Matter and Changes, 4th ed.; John Wiley and Sons: Hoboken, New Jersey, 2004; p 1007.
(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2002; p 8:119-8:122.
(3) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(4) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(5) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(6) - Zumdahl, Steven and Zumdahl, Susan A. Chemistry 9th ed.; Brooks/Cole: Belmont, CA, 2014; p 131.
(7) - Swaddle, T.W. Inorganic Chemistry; Academic Press: San Diego, 1997; p 186.
(8) - Atkins, Jones, and Laverman. Chemical Principles 6th ed.; W.H. Freeman and Company: New York, NY, 2013; p F94.