US Plastic Corp. Porcelain Hirsch Funnel

US Plastic Corp. Porcelain Hirsch Funnel

These funnels offer thermal shock resistance and have an average coefficient of expansion from 20°C to 200°C is 3.56 x 10^-5, gradually increasing to 4.69 x 10^-5 at 1050°C.

Features:

Made of porcelain
Fixed perforated plates
Every batch of porcelain is heat tested in factory
Glazed on inner & outer surfaces except for the rim
Glaze is extremely white
Resistant to chemical action
Excellent resistance to acids & alkalies, except for hydrofluoric acid

Specifications:

10mL : Dimensions: 30mm top diameter x 50mm high - For 10mm diameter filter paper
12mL : Dimensions: 40mm top diameter x 70mm high - For 15mm diameter filter paper
25mL : Dimensions: 50mm top diameter x 75mm high - For 30mm diameter filter paper
50mL : Dimensions: 75mm top diameter x 130mm high - For 47mm diameter filter paper
140mL : Dimensions: 100mm top diameter x 175mm high - For 55mm diameter filter paper