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Gram's iodine solution per microscopia, Sigma-Aldrich®

Fornitore: SIGMA-ALDRICH MICROSCOPY

Synonyms: Lugol's iodine, Iodine and potassium iodide, Potassium triiodide

M-Clarity™ quality level = MQ100

90107-2.5L-F 90107-250ML-F
90107-2.5L-FEA 88.6 EUR
90107-2.5L-F 90107-250ML-F
Gram's iodine solution per microscopia, Sigma-Aldrich®
Gram's iodine solution

Gram’s iodine solution is used as a mordant in the Gram staining process. It is added after the primary staining step with crystal violet; the resultant crystal violet - Iodine complex imparts purple color to the cells.


Iodine(I) interacts with Crystal Violet(CV) to form large CV-I complexes within the cytoplasm and outer layers of the cell.


Syn: Potassium Triiodide

Formula: I₃K
Peso molecolare: 419,812 g/mol
Densità: 1,005 g/ml (20 °C)
Temperatura di stoccaggio: Room Temperature
MDL Number: MFCD00134128
CAS Number: 12298-68-9

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Risultati del test di specificazione

Appearance (colour) Brown to very dark brown
Appearance (form) Liquid
Density D20/4 1.003 - 1.007
Refractive index N20/D 1.334 - 1.336
Expiration date period 24 months

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