SILVER BROMIDE - (7785-23-1)

Introduction

Name: silver bromide
* IUPAC
CAS Number: 7785-23-1
Chemical Formula: AgBr
Molar Mass: 187.7722 g
Mass Percent: Ag 57.446 %; Br 42.553 % 

Classification

• inorganic

Uses/Function

• "for light-sensitive eyeglasses and photographic film" 1

• "In photography. Topical anti-infective; astringent." 2

• "Silver iodide (with silver chloride and silver bromide) is used to make photographic film." 3

Physical Properties

Melting Point:*
432°C 4 = 705.15 K = 809.6°F
Boiling Point:*
1502°C 4 = 1775.15 K = 2735.6°F
Density (g/cm3):
6.47 at room temperature/pressure 4
* - 1 atm pressure

Solubility

Qualitative:
insoluble:  4

Ksp:5.35·10-13 5

Bonding

Bonding: polar covalent
Ionic Character: 31.21 %

Thermochemistry

ΔHf° (s): -23.99 kcal/mol 6 = -100.37 kJ/mol
ΔHf° (s): -24.00 kcal/mol = -100.4 kJ/mol 7
S° (s): 25.6 cal/(mol•K) 8 = 107.11 J/(mol•K)
S° (s): 25.60 cal/(mol•K) = 107.1 J/(mol•K) 9
ΔGf° (s): -23.16 kcal/mol 10 = -96.90 kJ/mol
ΔGf° (s): -23.16 kcal/mol = -96.9 kJ/mol 11

Reactions

For More Information

Sources

(1) - Whitten, Kenneth W., Davis, Raymond E., and Peck, M. Larry. General Chemistry 6th ed.; Saunders College Publishing: Orlando, FL, 2000; p 947.
(2) - The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 13th ed.; Budavari, S.; O'Neil, M.J.; Smith, A.; Heckelman, P. E.; Kinneary, J. F., Eds.; Merck & Co.: Whitehouse Station, NJ, 2001; entry 8579.
(3) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; p 585.
(4) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2003; p 4-82.
(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) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2002; p 5:5.
(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) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2002; p 5:5.
(10) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(11) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2002; p 5:5.
(12) - Ebbing, Darrell D. General Chemistry 3rd ed.; Houghton Mifflin Company: Boston, MA, 1990; p 98.