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Watch Glasses

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Watch Glasses

Watch glasses for heating solids and liquids as well as for use as beaker covers are available at VWR. Select models constructed of borosilicate, soda lime, or flint glass. Ribbed watch glasses for use as beaker covers eliminate vapor escape. Products have fire polished edging and are molded to the same radius for easier stacking. Select watch glasses in the appropriate diameter to meet your needs and purchase in packs or cases.


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Description:   Used for evaporations on hot plate or over open flame, and as covers for heated beakers. Heavy wall and uniform fire-polished edge provide mechanical strength. OD cannot be controlled within close limits; slight degree of out-of-round can be expected. Diameter: 65mm.
Catalog Number: 66110-021
Supplier: Corning


Product available on GSA Advantage®

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Description:   Designed for use as a beaker cover. Ribs are molded into the glass. Permits reflux of digestate and escape of excess vapor. Eliminates risk of contamination from dropped hooks or props. Meets EPA requirements for methods 3005, 3010 and 3020. Diameter: 100mm.
Catalog Number: 66110-205
Supplier: Corning


Product available on GSA Advantage®

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Description:   Watch glass soda lime 150 mm, Concave circular glass used as an evaporation surface for liquids, to cover beakers, or to hold solids when being weighed. Fire-polished edge. 1.2 mm minimum thickness. Diameter tolerance +/-1 mm. To USP Type III requirements.
Catalog Number: 75797-142
Supplier: DWK Life Sciences (KIMBLE)



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Description:   Watch glass soda lime 80 mm, Concave circular glass used as an evaporation surface for liquids, to cover beakers, or to hold solids when being weighed. Fire-polished edge. 1.2 mm minimum thickness. Diameter tolerance +/-1 mm. To USP Type III requirements.
Catalog Number: 75797-134
Supplier: DWK Life Sciences (KIMBLE)



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Certificate Certificates    
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Description:   Watch glass soda lime 50 mm, Concave circular glass used as an evaporation surface for liquids, to cover beakers, or to hold solids when being weighed. Fire-polished edge. 1.2 mm minimum thickness. Diameter tolerance +/-1 mm, to USP Type III requirements.
Catalog Number: 75797-130
Supplier: DWK Life Sciences (KIMBLE)



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Description:   PTFE beaker cover/watch glass for 100 ml Beakers
Catalog Number: AA38095-KT
Supplier: Thermo Scientific Chemicals



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MSDS SDS    
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Description:   PTFE beaker cover/watch glass for 2000 ml Beakers
Catalog Number: AA38099-KT
Supplier: Thermo Scientific Chemicals



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Description:   PTFE beaker cover/watch glass for 500 ml Beakers
Catalog Number: AA38097-KT
Supplier: Thermo Scientific Chemicals



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MSDS SDS    
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Description:   Watch Glass/ Cover Lid for Beakers and Flasks/ Evaporation Dish, Polished with Ground Edges for safe handling, Material: glass, Quality glass, The 2.0mm glass thick construction resists shattering, Can hold small samples to use under a low-power microscope, 3.5in (9cm) in diameter
Catalog Number: 470328-192
Supplier: Wards



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Description:   Concave, clear, annealed glass covers. Used to return condensation to beakers. Edges are fire polished. Made of soda lime glass. Diameter: 50mm.
Catalog Number: 66112-060
Supplier: Walter Stern



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Catalog Number: 470020-744
Supplier: United Scientific Supplies



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Catalog Number: 470104-600
Supplier: United Scientific Supplies



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Catalog Number: 100491-008
Supplier: Electron Microscopy Sciences


Minority or Woman-Owned Business Enterprise

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Catalog Number: 76532-260
Supplier: United Scientific Supplies



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Description:   Concave, clear, annealed glass covers. Used to return condensation to beakers. Edges are fire polished. Made of soda lime glass. Diameter: 30mm.
Catalog Number: 66112-027
Supplier: Walter Stern



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Catalog Number: 470144-840
Supplier: United Scientific Supplies



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