• Round Bottom Flask 250ml, NS 29/32
  • Adapter, Still head plain socket 29/32, Cone 29/32,29/32
  • Liebig Condenser 250mm 29/32 with Glass hose connector
  • Adapter Receiver 29/32, short stem
  • Adaptor Thermometer with compression cap 29/32
  • Thermometer 10° to 110° C

White Printing Borosilicate glass 3.3 is highly resistant to water effects, neutral and acid solutions, heavy acids and their mixtures, to chlorine, bromine, iodine and organic compounds. Even in long-term effects and at temperatures above 100 °C, this glass outstrips with its chemical durability most metals and other raw materials. Class of Resistance to Acid Effects (ISO 1776 a DIN 12116) is Class S1. Boro 3.3 or Borosilicate 3.3 is a type of glass having very low coefficient of thermal expansion