Silver nitrate 2,5% for microscopy, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
Danger

85193-100MLEA 153 EUR
85193-100ML
Silver nitrate 2,5% for microscopy, Sigma-Aldrich®
Silver nitrate

Silver nitrate along with iodine are among several inorganic substances used to induce colour in microscopical preparations. Silver nitrate as a biological stain exploits the strong colors of colloidal metallic silver. Silver nitrate is an important component of the silver staining that is used for the detection of proteins separated by polyacrylamide gel electrophoresis. Silver nitrate is a component of the silver stain kit. It is required for image development in diamine as well as non-diamine silver staining.


In silver staining, silver ions are reduced to metallic silver, thereby giving metallic silver images.

Formula: AgNO₃
MW: 169,87 g/mol
MDL Number: MFCD00003414
CAS Number: 7761-88-8
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Specification Test Results

Appearance (Colour) Green to Very Dark Green
Appearance (form) Powder or Crystals
Argentometr. Titration 80 - 120%
Thin layer chromatography Corresponds to standard
Assay (atomic absorpt.) Zn (theory) 8.74%, typically 3 - 9%
Atomic absorption Zn
Solubility (Colour) 0.01 g in 10 ml methanol
Solubility (method) 0.01 g in 10 ml methanol
Loss on drying ≤8.0 %
Sulphated ash 7 - 23 %
Wavelength (1) (UV) 621 - 636 nm
Extinction (1%/1 cm) (1) (UV) ≥800
Solvent (UV) Water

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