Description
Specifications Table
Product Name – Melting point standard set, sulfanilamide/caffeine/vanillin
Quantity/Pack Size – 3 g
Form – Powder/Crystals
Grade – Reference Standard
Application – Melting point calibration, thermal analysis
Product Overview
The melting point standard set, featuring sulfanilamide, caffeine, and vanillin, is designed for precise calibration of melting point apparatus in laboratory settings. Each component in this set is of certified reference-grade purity, ensuring reliable and reproducible results for thermal analysis. Sulfanilamide, with its well-documented melting point, serves as a stable reference, while caffeine and vanillin provide additional calibration points across a range of temperatures. This set is ideal for laboratories requiring accurate melting point determination, whether for routine testing or research applications. The high purity of these standards minimizes variability, making them suitable for both manual and automated melting point instruments. Proper storage in a cool, dry environment preserves their integrity, ensuring long-term usability. This set is a cost-effective solution for maintaining calibration accuracy without compromising on quality.
FAQs
1. What is the typical melting point range for these standards?
Sulfanilamide melts around 165-167°C, caffeine at 234-236°C, and vanillin at 81-83°C, providing a broad calibration range.
2. Are these standards compatible with digital melting point apparatus?
Yes, they are suitable for both manual capillary tube methods and modern digital melting point instruments.
3. Can these be used for differential scanning calorimetry (DSC)?
While primarily for melting point calibration, they can serve as secondary references in DSC with proper validation.
4. How should these standards be stored for long-term use?
Store in airtight containers at room temperature, away from moisture and direct sunlight to maintain stability.
5. Are there alternatives if I need a wider temperature range?
Consider adding benzoic acid (122°C) or acetanilide (114°C) for lower-range calibration if needed.
