Porcelain Desiccator Plates, Small Perforations, Plate Diam. 230 mm, Coorstek (CAT#: STEM-GLE-0729-LKN)

Chemical porcelain has an average coefficient of expansion from 20°C to 200°C is 3.56 x 10-6, gradually increasing to 4.69 x 10-6 at 1000°C. Note: To prevent thermal stress cracks on porcelain ware it is strongly recommended a heating/cooling rate not to exceed 200°C/hour.
There are small perforations throughout this desiccator plate, and one large hole in center. The plate is glazed on one side and is without feet.

Hole diam.: 2 mm, small; 23 mm, center
Plate diam.: 230 mm

Refractory Qualities
Fusion point: 1670°C
Softening point: 1400°C
Limit of use, unglazed: 1400°C
Limit of use, glazed: 1150°C
Limit of use, evacuated: 1300°C

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Porcelain Desiccator Plate, Plate Diam. 95 mm, No. of Holes, 3, Coorstek (CAT#: STEM-GLE-0731-LKN)
Porcelain Desiccator Plate, Plate Diam. 230 mm, No. of Holes, 8, Coorstek (CAT#: STEM-GLE-0732-LKN)
Porcelain Desiccator Plate, Plate Diam. 142 mm, No. of Holes, 5, Coorstek (CAT#: STEM-GLE-0733-LKN)