A porcelain desiccator plate with numerous 5mm holes and a large hole at the center is a laboratory accessory used for drying and storing substances. It is typically made of porcelain, a type of ceramic material that is able to withstand high temperatures and chemical corrosion.

The numerous 5mm holes in the plate allow air to circulate, helping to prevent condensation and keep the stored substances dry. The large hole at the center can be used to accommodate larger items, such as flasks or beakers.

Desiccator plates are commonly used in chemistry, pharmaceuticals, and other laboratory applications where dry storage of substances is required. The porcelain construction of the desiccator plate provides durability and resistance to chemical corrosion, making it a cost-effective solution for dry storage in laboratory settings.