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Merck
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Key Documents

1.10218

Sigma-Aldrich

Gram′s decolorizing solution

for the Gram staining method

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About This Item

分類程式碼代碼:
41116130
NACRES:
NA.74

品質等級

形狀

liquid

自燃溫度

>425 °C

IVD

for in vitro diagnostic use

技術

microbe id | staining: suitable

轉變溫度

flash point -10 °C

密度

0.79 g/cm3 at 20 °C

應用

clinical testing
diagnostic assay manufacturing
hematology
histology

儲存溫度

15-25°C

一般說明

Gram′s decolorizing solution - for the Gram staining method, is a ready-to-use solution used in bacteriology. The Gram staining allows a fast differentiation of bacteria in Gram-positive and Gram-negative. The mureine structure of the bacteria walls is the basis of the color affinity. Bacteria will be stained with Gram′s crystal violet solution (Product number 1.09218) - an aniline dye - in the first step. After the treatment with iodine solution (Lugol′s solution stabilized with PVP, Product number 1.00567), a dye-iodine complex will form. During the decolorizing step (Gram′s decolorizing solution, Product number 1.10218), this complex stays in the multilayer mureine structures of the Gram-positive bacteria and they will appear blue-violet. Gram-negative bacteria have a monolayer mureine structure only, the dye-iod complex does not stay bound to the cellwall, they will be decolorized . Gram-negative bacteria will be counterstained by Gram′s safranin solution (Gram′s safranine solution (Product number 1.09217) and appear pink to red.
A bottle with 500 ml Gram′s decolorizing solution is sufficient for staining up to 250 slides, it is also available as part of the Gram-color stain set, (Product number 1.11885). It is an IVD product and CE registered. For more details, please see instructions for use (IFU).

分析報告

Suitability for microscopy: passes test
Staphylococcus aureus: dark blue-violet
E.coli: pink to red

象形圖

FlameExclamation mark

訊號詞

Danger

危險聲明

危險分類

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

標靶器官

Central nervous system

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

14.0 °F

閃點(°C)

-10 °C


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