Title: Silver Nitrate
CAS Registry Number: 7761-88-8
CAS Name: Nitric acid silver(1+) salt
Molecular Formula: AgNO3
Molecular Weight: 169.87
Percent Composition: Ag 63.50%, N 8.25%, O 28.26%
Literature References: Prepn: T. W. Richards, G. S. Forbes, J. Am. Chem. Soc. 29, 808 (1907). Clinical prophylactic use in neonatal conjunctivitis: Credé, Arch. Gynaekol. 17, 50 (1881). Raman and IR structural studies: Z. X. Shen, W. F. Sherman, J. Mol. Struct. 271, 175 (1992). Clinical evaluation in molluscum contagiosum: K. Niizeki, K. Hashimoto, Pediatr. Dermatol. 16, 395 (1999); of histological effects in epithelial cautery: J. Hanif et al., Clin. Otolaryngol. 28, 368 (2003). Review of prophylactic use in neonatal gonococcal conjunctivitis: G. Schneider, Can. Med. Assoc. J. 131, 193-196 (1984); of toxicology: S. D. M. Humphreys, P. A. Routledge, Adverse Drug React. Toxicol. Rev. 17, 115-143 (1998); of chromatographic applications: C. M. Williams, L. N. Mander, Tetrahedron 57, 425-447 (2001).
Properties: Colorless, rhombic crystals or white small crystals. d 4.352. Dimorphic; transition temp: 159.8°. mp 212°, forming a yellowish liq solidifying to a white, cryst mass on cooling. Dec at 440° into metallic silver, nitrogen and nitrogen oxides. Soly in water at 25° (g/100 g H2O): 2.16´102 . Soly (g/L): ethanol 20.8; methanol 35; benzene 2.2. Not photosensitive when pure; trace amts of organic material promote photoreduction.
Melting point: Dimorphic; transition temp: 159.8°. mp 212°
Density: d 4.352
Derivative Type: Toughened silver nitrate
CAS Registry Number: 8007-31-6
CAS Name: Nitric acid silver (1+) salt mixt with silver chloride (AgCl)
Additional Names: lunar caustic; molded silver nitrate
Properties: Contains not less than 94.5% silver nitrate, remainder is silver chloride. White or grayish, hard rods or thin small cones. Darkens on exposure to light. Protect from light.
CAUTION: Potential symptoms of overexposure by direct contact are tissue corrosion and burns; absorption through mucous membranes or damaged areas of skin may be followed by systemic toxicity (Humphreys). See also Silver.
Use: In chromatography; photography; manuf of mirrors; other silver salts; silver plating; in sympathetic and indelible inks; dyeing hair; coloring porcelain; etching ivory; as a reagent in analytical chemistry.
Therap-Cat: Astringent, antiseptic, caustic.
Therap-Cat-Vet: Astringent, antiseptic, caustic.
Keywords: Antiseptic/Disinfectant; Silver compounds; Astringent. |