Hemispherical Copper Water Bath Chemical_Iodine Gneiss is a high-grade metamorphic

Gneiss is a high-grade metamorphic rock formed from other rocks undergoing alteration from intense heat and pressure

Used as a primary standard in permanganate titrations and as a chelating agent for iron-stain removal

Rotation-wheel water flow data-logging sensor reading 0 to 4

reconfigurable into 500mm manometers for fluid-dynamics work

Use for investigation of gas at constant volume By inserting the glass bulb into either warm or cold water the expansion and contraction to the air contained in the bulb can be seen as a pressure change on the gauge

Hemispherical Copper Water Bath Chemical_Iodine Gneiss is a high-grade metamorphicCopper sheet hemispherical body with concentric ring inserts accommodates a range of flask sizes during gentle water bath heating and evaporation in teaching chemistry.