CALCIUM CARBONATE - (471-34-1)

परिचय

नाम: calcium carbonate
* IUPAC
सीएएस संख्या: 471-34-1
रासायनिक सूत्र: CaCO3
अणु भार: 100.0869 g
मास प्रतिशत: Ca 40.043 %; C 12.000 %; O 47.956 % 

वर्गीकरण

उपयोग करता है / समारोह

• "Limestone, which consists mostly of calcium carbonate, has been used in agriculture for centuries. It is spread on fields to neutralize acidic compounds in the soil and to supply the essential nutrient Ca2+." 1

• "Used as a building material, to make lime, and, in high purity, as a toothpaste abrasive and antacid." 2

• "seashells...are composed chiefly of calcium carbonate" 3

• "Corrosion control [in chemical water analysis]" 4

घुलनशीलता

Ksp:3.36·10-9 5

संबंध

ऊष्मारसायन

ΔHf° (s): -288.51 kcal/mol 6 = -1,207.13 kJ/mol
ΔHf° (s): -288.46 kcal/mol 6 = -1,206.92 kJ/mol
S° (s): 21.2 cal/(mol•K) 7 = 88.70 J/(mol•K)
S° (s): 22.2 cal/(mol•K) 7 = 92.88 J/(mol•K)
ΔGf° (s): -269.55 kcal/mol 8 = -1,127.80 kJ/mol
ΔGf° (s): -269.80 kcal/mol 8 = -1,128.84 kJ/mol

प्रतिक्रियाओं

अधिक जानकारी के लिए

विकिपीडिया
पत्रिका:
Choi, Charles Q. A Calcium Conundrum Explained. Scientific American, April 2009, p 31.

सूत्रों का कहना है

(1) - Kotz, Treichel, and Weaver. Chemistry & Chemical Reactivity, 6th ed.; Thomson Brooks/Cole: Belmont, CA, 2006; p 1030.
(2) - Silberberg, Martin S. Chemistry: The Molecular Nature of Matter and Change, 4th ed.; McGraw-Hill: New York, 2006; p 565.
(3) - Brady, James E. and Senese, Fred. Chemistry: Matter and Changes, 4th ed.; John Wiley and Sons: Hoboken, New Jersey, 2004; p 1012.
(4) - Hammer, Mark J. Water and Wastewater Technology, 2nd ed.; Prentice Hall: Englewood Cliffs, NJ, 1986; p 9.
(5) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2002; p 8:119-8:122.
(6) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(7) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(8) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(9) - Swaddle, T.W. Inorganic Chemistry; Academic Press: San Diego, 1997; p 269.
(10) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; p 85.
(11) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; p 181.
(12) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; p 84.
(13) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; pp 94, 181.
(14) - Kotz, John C., Treichel, Paul, and Weaver, Gabriela. Chemistry & Chemical Reactivity 6th ed.; Thomson Brooks/Cole: Belmont, CA, 2006; p 166.