Melting Point Apparatus, Digital
Product Code : EL-LI-10781
Quick answer: The digital melting point apparatus finds the temperature at which a solid sample melts, used to identify organic compounds and check their purity. It heats three samples at once from ambient to 300 °C, displays to 0.1 °C and has a fixed 20 °C/min fast ramp and a 1-10 °C/min slow ramp. Lab Exports manufactures it in Delhi for school, college, research and industrial laboratories.
Specifications
| Parameter | Value |
|---|---|
| Temperature range | Ambient to 300 °C |
| Temperature accuracy | ±1.0 °C at 20 °C, ±2.5 °C at 300 °C |
| Display | Four-digit LED |
| Display resolution | 0.1 °C |
| Temperature control | Thermistor |
| Fast stage ramp rate | 20 °C/min, fixed |
| Slow ramp rate | Adjustable, 1-10 °C/min |
| Samples | Three at a time |
| Viewing | Internal LED light with magnifying lens |
| Readout hold | Yes |
| Dimensions (W x D x H) | 160 x 220 x 170 mm |
How melting point is determined
A pure crystalline solid melts sharply over a narrow range, usually within 1-2 °C, while impurities lower the melting point and widen the range. Measuring the melting range is therefore a quick way to identify a compound against published values and to judge whether a recrystallised product is pure.
- Grind the dry sample and pack it 2-3 mm deep into a capillary tube sealed at one end.
- Insert up to three capillaries into the heating block.
- Use the fast 20 °C/min stage to reach a temperature 10-15 °C below the expected melting point.
- Switch to the slow ramp, typically 1-2 °C/min, and watch the samples through the magnifying lens.
- Note the temperature where melting starts and where it is complete; the readout hold keeps the value on the display.
Running a known reference compound beside an unknown lets students compare the two under exactly the same heating rate, which is the basis of the mixed melting point test.
Key features
- Thermistor temperature control with 0.1 °C display resolution
- Three samples measured simultaneously
- Internal LED lighting and magnifying lens; tilting rear feet angle the unit for a clearer view
- Two heating speeds: fixed 20 °C/min fast stage and 1-10 °C/min adjustable slow ramp
- Readout hold for recording the melting temperature
- Compact 160 x 220 x 170 mm footprint
Documentation and supply
Installation instructions and a manual are supplied with the apparatus. Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the melting point apparatus at its works in Laxmi Nagar, Delhi, and supplies it to school, college, research and industrial laboratories in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
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Frequently asked questions
What is the temperature range of this melting point apparatus?
It works from ambient temperature to 300 °C, with an accuracy of ±1.0 °C at 20 °C and ±2.5 °C at 300 °C.
How many samples can be tested at once?
Three samples can be heated and observed at the same time.
Which heating rate should be used near the melting point?
Use the fast 20 °C/min stage to approach the expected value, then the slow ramp, adjustable from 1 to 10 °C/min, for the reading itself.
What is the price of the melting point apparatus?
Prices are not published on the website. Add the melting point apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-LI-10781 and the quantity, to receive a quotation.
Does Lab Exports manufacture the melting point apparatus?
Yes. Lab Exports manufactures the melting point apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code EL-LI-10781.
Request a quote
Email [email protected] with the house code EL-LI-10781 and the quantity, or add the melting point apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
