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Silver sulfate

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Silver sulfate Basic information

Product Name:
Silver sulfate
Synonyms:
  • Silver sulfate, extra pure, 99% 10GR
  • Silver Sulfate, Powder, Reagent
  • Sulfuric Acid, Reagent
  • Silver sulfate, 99%, extra pure
  • disilver(1+)
  • disilver(1+)sulphate
  • Sulfuricacid,disilver(1+)salt
  • Silver sulfate,pure,10 g/l solution in sulfuric acid
CAS:
10294-26-5
MF:
Ag2O4S
MW:
311.8
EINECS:
233-653-7
Product Categories:
  • Waste Water
  • Water Test
  • Catalysis and Inorganic Chemistry
  • Salts
  • Silver Salts
  • SilverMetal and Ceramic Science
  • Chemical Synthesis
  • Silver
  • S - ZAnalytical Reagents
  • ACS GradeChemical Synthesis
  • Essential Chemicals
  • Routine Reagents
  • Analytical Reagents
  • metal sulfate
  • Inorganics
  • Analytical Reagents for General Use
  • Puriss p.a. ACS
  • Q-S, Puriss p.a. ACS
  • S - ZChemical Synthesis
  • SilverAnalytical Reagents
  • Salt Solutions
  • Volumetric Solutions
Mol File:
10294-26-5.mol
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Silver sulfate Chemical Properties

Melting point:
652 °C (lit.)
Boiling point:
1085 °C
Density 
5.45
Flash point:
1085°C
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
8g/l
form 
Solid
color 
White to off-white
Specific Gravity
5.45
PH
5-6 (5g/l, H2O, 25℃)
Water Solubility 
7.4 g/L (20 ºC)
Sensitive 
Light Sensitive
Merck 
14,8529
Solubility Product Constant (Ksp)
pKsp: 4.92
Stability:
Stability Stable, but light-sensitive.
InChIKey
YPNVIBVEFVRZPJ-UHFFFAOYSA-L
CAS DataBase Reference
10294-26-5(CAS DataBase Reference)
EPA Substance Registry System
Silver sulfate (10294-26-5)
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Safety Information

Hazard Codes 
Xi,C,N
Risk Statements 
36/37/38-36-35-50/53-41
Safety Statements 
26-36-39-45-36/37/39-30-61-60
RIDADR 
UN 1830 8/PG 2
WGK Germany 
3
8
TSCA 
Yes
HazardClass 
9
HS Code 
28432900
Toxicity
LD50 orally in Rabbit: 5000 mg/kg

MSDS

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Silver sulfate Usage And Synthesis

Chemical Properties

Small, colorless, lustrous crystals or crystalline powder. Contains about 69% silver, turns gray on exposure to light.Soluble in ammonium hydroxide, nitric acid, sulfuric acid, hot water; insoluble in alcohol.

Physical properties

Colorless crystals or powder; slowly darkens when exposed to light; density 5.45 g/cm3; melts at 652°C; decomposes at 1,085°C; slightly soluble in water; dissolves in nitric acid, concentrated sulfuric acid and ammonia solution.

Uses

Silver sulfate is used as a catalyst to oxidize long chain aliphatic hydrocarbons in the determination of chemical oxygen demand (COD).

Preparation

Silver sulfate is precipitated by adding sulfuric acid to a solution of silvernitrate:

2Ag+(aq) + SO42- (aq) → Ag2SO4 (s) The precipitate is washed with hot water and preparation is under ruby red illumination.

General Description

Odorless white to gray solid. Sinks and mixes with water.

Reactivity Profile

Silver sulfate has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.

Hazard

Highly toxic.

Health Hazard

Contact with eyes causes irritation. If continued for a long period, ingestion or inhalation of silver compounds can cause permanent discoloration of the skin (argyria).

Purification Methods

Crystallise the sulfate form hot conc H2SO4 containing a trace of HNO3, and dilute with H2O while being strongly cooled. The precipitate is filtered off, washed with H2O and dried at 120o. Its solubility in H2O is 0.8% at 17o, and 1.46% at 100o. Store it in the dark. [Glemser & Sauer in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1042 1965.]

Silver sulfate Preparation Products And Raw materials

Preparation Products

Raw materials

Silver sulfateSupplier

Hysén on Hao Fine Chemical Co., Ltd. Gold
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