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liquid cover glass for microscopy

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Quality Level



autoignition temp.

>250 °C

expl. lim.

1.2-8 % (v/v) toluene)



transition temp

flash point 8 °C


0.91 g/cm3 at 20 °C


diagnostic assay manufacturing

storage temp.


General description

M-GLAS® liquid cover glass for microscopy, is used in cytology instead of a cover glass to ensure that the stained specimens are homogenously covered. A few drops are applied onto the specimen, taking care that the mounting medium is evenly distributed over the specimen material. After the solvent has evaporated, a solid, protective lacquer film remains that ensures that the specimen material is preserved. The M-GLAS® layer is not resilient to immersion oils. In exceptional cases, the time for which the specimen is exposed to the immersion oil should be kept to less than 10 minutes, since otherwise a residue-free removal of the oil can no longer be guaranteed. If the exposure time is longer, it is recommended to remove as much of the immersion oil from the specimen as possible, immerse it in xylene, and to mount it anew. This product is registered as IVD and CE marked. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Refractive index (20°C) 1.490 - 1.500
Density (20°C / 4°C) 0.980 g/cm3
Viscosity (20°C) 500 - 600 mPa*s
Fluorescence < 250 ppb

Legal Information

M-GLAS is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word


Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids



Flash Point(F)

46.4 °F

Flash Point(C)

8 °C

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