Description
Melting point apparatus according to Thiele is a classic glassware assembly for determining the melting points of solid organic and crystalline substances in chemical and pharmaceutical laboratories. The complete unit includes a screw cap GL 18, a matching seal of 16 × 6 mm and integrated side tubes for controlled heating and observation. Following the traditional Thiele design, it enables gradual temperature rise of the heating medium while the sample behaviour is monitored through the glass. The apparatus supports routine melting-point characterisation for teaching, research and quality-control work. Supplied ready for use as a complete assembly from manufacturer Witeg, the lightweight device is easy to position on the laboratory bench. Its glass construction provides chemical resistance and clear visibility during measurement. The GL 18 screw connection with the specified seal ensures a secure closure of the heating bath. With a net weight of 0,086 kg, the compact apparatus remains a practical and reliable tool for melting-point determination in everyday laboratory practice.
This article is part of Photometers & spectrophotometers, in Spectroscopy & photometry.
Key features
- Pack size: 1 pc
- Type: Melting point apparatus according to Thiele
- Closure: Screw cap GL 18
- Seal dimensions: 16 × 6 mm
- Configuration: Complete with side tubes
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Questions about Melting point apparatus
What is this article?
Melting point apparatus is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Photometers & spectrophotometers, inside Spectroscopy & photometry, in Instruments de précision.
A photometer reads absorbance at one or a few wavelengths. A spectrophotometer scans or selects many. Both send light through a cuvette or a well. The wavelength range, UV or visible, and the bandwidth decide what can be measured. A visible-only instrument cannot read a nucleic acid at 260 nm.
A photometer or spectrophotometer sends light through a sample and reads how much was absorbed. In the range where the Beer–Lambert relation holds, absorbance tracks concentration. A refractometer reads how a liquid bends light, which tracks dissolved solids. A polarimeter reads the rotation of polarised light, the classical measurement for sugars. The lamp, the wavelength and the cuvette path length are the three things that have to be right before the number means anything. The optical quantities trace to NIST and the BIPM.
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The category is Spectroscopy & photometry. The sub-category is Photometers & spectrophotometers. The catalogue is Instruments de précision.
Shelves beside this one are Refractometers & polarimeters and Lamps, cuvette holders & accessories.
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