Silberbromid

SILVER BROMIDE Struktur
7785-23-1
CAS-Nr.
7785-23-1
Bezeichnung:
Silberbromid
Englisch Name:
SILVER BROMIDE
Synonyma:
AgBr;99.90%;bromosilver;SILVER BROMIDE;Silver brohide;SILVER(I) BROMIDE;Silver bromide,99%;Silver bromide 99%;silverbromide(agbr);SILVER BROMIDE: 99.9%
CBNumber:
CB5359545
Summenformel:
AgBr
Molgewicht:
187.77
MOL-Datei:
7785-23-1.mol

Silberbromid Eigenschaften

Schmelzpunkt:
432 °C (lit.)
Siedepunkt:
700 °C
Dichte
6.473 g/mL at 25 °C (lit.)
storage temp. 
Room Temperature
Löslichkeit
insoluble in H2O, acid solutions, ethanol
Aggregatzustand
Powder
Wichte
6.473
Farbe
Pale Yellow
Wasserlöslichkeit
soluble in alkali cyanide solutions. Partially soluble in ammonia. Insoluble in alcohol and acids. Practically insoluble in water.
Sensitive 
Light Sensitive
Crystal Structure
Cubic, Sphalerite Structure - Space Group F(-4)3m
Merck 
14,8506
Solubility Product Constant (Ksp)
pKsp: 12.3(25°C)
Dielectric constant
12.2(0.0℃)
Stabilität:
Stability Darkens in light
InChIKey
ADZWSOLPGZMUMY-UHFFFAOYSA-M
CAS Datenbank
7785-23-1(CAS DataBase Reference)
EPA chemische Informationen
Silver bromide (AgBr) (7785-23-1)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi
S-Sätze: 22-24/25
WGK Germany  3
8
Hazard Note  Irritant
TSCA  Yes
HazardClass  9
HS Code  2843290000
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H410 Sehr giftig für Wasserorganismen mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 1 Warnung P273, P391, P501
Sicherheit
P273 Freisetzung in die Umwelt vermeiden.
P391 Verschüttete Mengen aufnehmen.
P501 Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Silberbromid Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:

S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

Silver bromide, AgBr, is pale yellow crystals or powder, that darken on exposure to light, finally turning black and soluble in potassium bromide, potassium cyanide, and sodium thiosulfate solutions, only very slightly soluble in ammonia water, insoluble in water, and light sensitive. Derivation is through silver nitrate dissolving in water and a solution ofalkali bromide added slowly. The precipitated silver bromide is washed repeatedly with hotwater. The operation must be carried on in a darkroom under a ruby-red light. Used in photographic film and plates, photochromic glass and as a laboratory reagent.

Physikalische Eigenschaften

Yellow cubic crystals or powder; refractive index 2.253; darkens on exposure to light; Mohs hardness 2.5; density 6.47g/cm3; melts at 432°C; vaporizes at 1,502°C; insoluble in water, alcohol, and most acids; slightly soluble in dilute ammonia and ammonium carbonate solutions; sparingly soluble in concentrated ammonia solution (0.33 g/100mL 10% ammonia solution at 12°C);soluble in alkali cyanide solutions.

Verwenden

A yellowish powder made by the combination of any soluble bromide with 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, and potassium cyanide solutions. Silver bromides were secondary halides for the paper negative processes, albumen negative process, and wet or preserved collodion processes. Silver bromides were the primary halides for the silver bromide collodion emulsion negative and the silver bromide gelatin emulsion processes. Silver bromide is the most photosensitive silver halide.

synthetische

Silver bromide is prepared by double decomposition reaction. An aqueous solution of alkali bromide, such as sodium or potassium bromide, is slowly added to an aqueous solution of silver nitrate:
Ag+ (aq) + Brˉ (aq) → AgBr(s)
The precipitate is washed repeatedly with hot water. Preparation should be in a dark room under a ruby red light.

läuterung methode

It is insoluble in dilute HNO3 or dilute NH3 but is soluble in conc NH3. Store it in the dark.

Silberbromid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Silberbromid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 219)Lieferanten
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7785-23-1(Silberbromid)Verwandte Suche:


  • SILVER BROMIDE
  • SILVER(I) BROMIDE
  • SILVER BROMIDE 99.999%
  • Silverbromide,Premion,99.999%(metalsbasis)
  • Silver bromide, Premion(R), 99.998% (metals basis)
  • SILVER BROMIDE PURIFIED
  • Silverbromide(99.9%-Ag)
  • silver bromide, premion
  • SILVERBROMIDE,GRANULAR,PURIFIED
  • SILVER BROMIDE: 99.9%
  • Silver bromide,99%
  • Silver bromide, Premion, 99.998% (metals basis)
  • 99.90%
  • AgBr
  • Silver brohide
  • Silver bromide (AgBr)
  • Silver bromide 99%
  • Silver bromide, 99.995% trace metals basis
  • silverbromide(agbr)
  • SILVER BROMIDE, PURIFIEDSILVER BROMIDE, PURIFIEDSILVER BROMIDE, PURIFIED
  • SILVER BROMIDE ISO 9001:2015 REACH
  • Silver bromide extrapure 25GM
  • Silver Bromide extrapure, 97%
  • bromosilver
  • SILVER BROMIDE (LAB) Extra Pure
  • 7785-23-1
  • metal halide
  • Inorganics
  • Catalysis and Inorganic Chemistry
  • Chemical Synthesis
  • Silver
  • SilverMetal and Ceramic Science
  • Crystal Grade Inorganics
  • Metal and Ceramic Science
  • Salts
  • Silver Salts
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