WebFisher-Johns Melting Point Apparatus Directions 7. Obtain eight (4 pair) microscope cover glasses. 8. Place a very small pile of the unknown compound on four microscope cover glasses. Place a second microscope cover glass over the … WebJul 31, 2009 · Reactions were performed in sealed vessels in a monomode microwave CEM Discover apparatus and the temperature was evaluated by infrared. Melting points were obtained in a Fisher Johns melting point apparatus and are uncorrected. Infrared (IR) spectra were obtained in KBr on a Bruker Vector 22 IR spectrometer.
Rizka Indra Nareswari - Learning & Marketing Support - PT Digita ...
WebJun 2, 2004 · By the way, the general idea is not mine, Zubrick's describes the Fisher-Johns apparatus in the chapter 12 of 4th edition. Mine is a DIY, quick and dirty version of it. Vogel's third edition describes all sort of strange devices for mp determination. One of them uses an iron (the clothes one). WebSemarang, Central Java, Indonesia. • Carry out assistance and supervision of 16 students in the practicum entitled "Synthesis of Aspirin from Salicylic Acid". • Provide direction and correction regarding practicum procedures. • Performing aspirin purity test using FeCl3 and melting point measurement using Fisher-Johns Melting Point Apparatus. gower law firm
A new route for the synthesis of substituted 5-amino-4 ... - Springer
WebDescription Fisher-Johns Melting Point Apparatus, 220 VAC Warranty 1 year More About this Item Determine the melting point of solid chemical compounds without loading samples into fragile capillary tubes. … WebA new melting point apparatus needs to be purchased for the laboratory. There are two systems that exist in the market for purchase – the Fisher-Johns apparatus (Figure 1) or the Electrothermal Digital apparatus (Figure 2): Figure 1. Fisher-Johns Apparatus Figure 2. Electrothermal Digital Apparatus (Cole-Palmer, n.d.) (Fishersci, n.d.) The melting … WebFeb 3, 2024 · A melting-factor apparatus is a systematic device used to determine the melting factor of a substance. Some styles of melting-factor apparatuses consist of the thiele tube, fisher-johns equipment, gallenkamp (digital) melting- factor equipment and automatic melting-factor equipment. gower lodge farnborough