Spectral Graphite Rod: A Necessary Tool in Chemical Laboratories

  • Good electrical & thermal conductivity.
  • Low coefficient of thermal expansion and low friction coefficient.
  • Excellent thermal stability and oxidization resistance.
  • High purity and low ash content.
5 spectral graphite rods are displayed.

Spectral analysis is a method that uses the spectrum emitted by elements or compounds for analysis. In spectral analysis, spectral graphite rod is used as an auxiliary electrode for liquid samples or poorly conductive samples. By using the spectral graphite rod as an electrode, ions already present in the sample are collected, and then the spectral graphite rod is heated to release energy, producing specific spectral lines to determine the chemical elements and their contents in the sample.

Spectral graphite rods can be applied in the fields of emission spectroscopy, atomic absorption spectroscopy, and gas analysis, and are an important component in many types of spectroscopy.

  • Good self-lubrication.
  • Great oxidization resistance.
  • Excellent chemical corrosion resistance.
  • High thermal conductivity and thermal stability.
  • High mechanical strength and impact resistance.
Table 1: Spectral Graphite Rod Technical Data
Model Bulk Density (g/cm3) Compressive Strength (MPa) Flexural Strength (MPa) Specific Resistance (μΩ.m) Ash Content (ppm)
SPC-1 1.7 40 35 8 ≤ 5
  • 1 MPa = 10.2 kgf/cm2; 1 W/m.k = 0.86 kcal/cm.h.°C
  • These properties are typical values and not guaranteed.
Table 2: Specification of Spectral Graphite Rod
Size Let's take MSS80 as an example.
Grain size (mm) 0.025, 0.045, 0.80, 2.00
Diameter (mm) 3, 6, 8, 10, 13, 15
Length (mm) 300, 310, 360