Melting point standard 79-81°C, analytical standard 1g

Description

General description
Melting point standard 79-81 °C, naphthalene is a non-polar hydrocarbon for use in the characterization of pure chemicals and pharmaceutical compounds. The melting point value is determined with an average of 6 to 12 measurements using a Büchi B-545 instrument that is calibrated against primary standards.
Application
Naphthalene melting point standard 79-81 °C is an analytical standard used to calibrate melting point instruments, operating in the thermodynamic mode of analysis. It′s also applicable in R&D labs for chemical quality control (QC) and quality assurance (QA) to identify solid crystalline substances and to check their purity.
Additionally, this mp standard is also used as a temperature calibration standard in thermal studies.
Features and Benefits
Melting point calibration standard traceable to primary standards (LGC, London)
Grade: Analytical Standard
Standard deviation up to ± 0.3 °C
Provided with certificates of analysis and safety data sheet

PROPERTIES
Quality Level
100

grade
analytical standard

vapor density
4.4 (vs air)

vapor pressure
0.03 mmHg ( 25 °C)

autoignition temp.
978 °F

shelf life
limited shelf life, expiry date on the label

expl. lim.
5.9 %

bp
218 °C (lit.)

mp
79-81 °C (±0.3°C)
80-82 °C (lit.)

application(s)
food and beverages
pharmaceutical