Silver chloride CAS:7783-90-6

  • Product Name:Silver chloride
  • CAS:7783-90-6
  • Molecular formula:AgCl
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Silver chloride CAS:7783-90-6

Silver chloride CAS:7783-90-6 Basic information

Product Name: Silver chloride
Synonyms: silver(i) chloride, ultra dry;SILVERCHLORIDE,GRANULAR,REAGENT;SILVER(I) CHLORIDE: 99.9% (75%AG);SILVER CHLORIDE: 99.9%;Silver(I) chloride, ultra dry, 99.997% (metals basis);Silver(I) chloride, Premion(R), 99.998% (metals basis);Silver(I) chloride, 99.9% (
CAS: 7783-90-6
MF: AgCl
MW: 143.32
EINECS: 232-033-3
Product Categories: Inorganics;Chemical Synthesis;Reagent PlusChemical Synthesis;Catalysis and Inorganic Chemistry;Essential Chemicals;Routine Reagents;Silver;Crystal Grade Inorganics;Metal and Ceramic Science;Salts;Silver Salts;SilverMetal and Ceramic Scien
Mol File: 7783-90-6.mol

Silver chloride CAS:7783-90-6 Chemical Properties

density: 5.56
Melting point: 455 °C(lit.)
Boiling point: 1550 °C
form: beads
storage temp.: Store at +5°C to +30°C.
Water Solubility: 1.93 mg/L (25 ºC)
refractive index: 2.071
InChIKey: HKZLPVFGJNLROG-UHFFFAOYSA-M
Fp: 1550°C
solubility: 0.00188g/l
NIST Chemistry Reference: Silver chloride(7783-90-6)
Merck: 14,8509
Stability: Stable, but discolours in light.
Sensitive: Light Sensitive
Specific Gravity: 5.56
vapor pressure: 1 mm Hg ( 912 °C)
optical activity: [α]/D +35 to +44°, c = 0.5 in acetone
Hydrolytic Sensitivity: 0: forms stable aqueous solutions
RTECS: GZ4705000
CAS DataBase Reference: 7783-90-6(CAS DataBase Reference)
EPA Substance Registry System: Silver chloride (7783-90-6)

检验标准 Standard

实测结果 Result

银含量,不小于

Ag content, not less than

wt%

75.00

75.20

纯度,不小于

Purity, not less than

wt%

99.00

99.95

不溶物,不大于

Insoluble substance, no greater than

wt%

0.10

Appearance

白色粉末,见光变紫并逐渐变黑A white powder that turn purple to light and darkens gradually

Properties

略溶于水,极易溶于硝酸、氨水、氰化钾溶液

Slightly soluble in water, soluble in nitric acid, ammonia, potassium cyanide solution

贮存条件

Storage

密封室温干燥阴凉处保存

Store at room temperature in cool and dry place, airtight preservation


Pd

0.0050

0.0021


Au

0.0050

0.0017


Pt

0.0050

0.0018

杂质含量分析

Al

0.0050

0.0015

(wt%)

Fe

0.0050

0.0017

 

Inductively Coupled

Mg

0.0050

0.0013

Si

0.0050

0.0014

Plasma/Elemental

Cu

0.0050

0.0010

Analyzer


Cr

0.0050

0.0013


Zn

0.0050

0.0012


Pb

0.0005

N.D.

检验结论

签发

Conclusion

Signer

日期:

Qualified

Date

Silver chloride Usage And Synthesis
Physical PropertiesWhite granular powder or cubic crystals; refractive index 2.071; darkens on exposure to light; density 5.56 g/cm3; Moh’s hardness 2.5; melts at 455°C; vaporizes at 1,547°C; vapor pressure 1 and 5 torr at 912 and 1,019°C; insoluble in water, alcohol and dilute acids; soluble in ammonia solution and concentrated sulfuric acid, alkali cyanide, ammonium carbonate; also soluble in potassium bromide and sodium thiosulfate solutions.
UsesSilver chloride is used in silver plating and to obtain pure silver. The salt also finds applications in photography and optics; in photochromic glass; and in electrodes and batteries. It is used to make antiseptic silver solution. It occurs as the mineral cerargyrite.
PreparationSilver chloride is prepared by slowly adding an alkali metal chloride solution to a hot solution of silver nitrate. The solution mixture is boiled:
Ag+ (aq) + Cl¯ (aq) → AgCl (s)
The precipitate is washed with hot water. The product is purified by dissolving in ammonia solution, filtering out any insoluble residues, and then adding hydrochloric acid to reprecipitate silver chloride. Preparation should be carried out in the dark in ruby red light.
Chemical PropertiesSilver chloride, AgCl, is a white,granular powder that darkens on exposure to light,finally turning black.It exists in several modifications differing in behavior toward light and solubility in various solvents. Soluble in ammonium hydroxide, concentrated sulfuric acid, and sodium thiosulfate and potassium bromide solutions, very slightly soluble in water, can be melted, cast, and fabricated like a metal. Derived by heating a silver nitrate solution and adding hydrochloric acid or salt solution. The whole is boiled, then filtered. This must take place in the dark or under a ruby-red light. Used in photography,photometry and optics, batteries, photochromic glass,silver plating,production of pure silver, and as an antiseptic. Single crystals are used for infrared absorption cells and lens elements and as a lab reagent
UsesIn silver plating, in making antiseptic silver preparations.
UsesFound in nature as horn silver, this white powder is made by the combination of a soluble chloride and silver nitrate. Silver bromide could also be formed by exposing metallic silver to the fumes of bromine as in the daguerreotype process. It is soluble in sodium thiosulfate, potassium bromide solutions, and strong ammonia. This silver halide was the first to be observed to darken spontaneously by exposure to light. Silver chloride formed the basis of the photogenic drawing, salted paper print, albumen print, collodion-chloride POP, gelatin chloride POP, and gaslight paper.
UsesUsed in photographic films, to coat and silver glass, as an antiseptic, and to absorb infrared light in lenses.
DefinitionWhite, granular powder; darkens on exposure to light, finally turning black. Exists in several modifications differing in behavior toward light and in their solubility in various solvents.Soluble in ammonium hydroxide, concentrated sulfuric acid and sodiu
HazardAs for silver.
Purification MethodsRecrystallise it from conc NH3 solution by acidifying with HCl, filtering off the solid, washing it with H2O and drying it in a vacuum. It is soluble in NH3 and should be kept in the dark.


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