Bay Carbon, Inc.

SP-1 Graphite Powder

Typical Gravimetric Density: 0.79125+/- 0.00004 grams/cm3

Typical Purity:

Grade: Graphite Powder

Lot Number: 042111

Impurities

PPM

Concentration

Detection Limits, PPMV
Aluminum 0 .27
Boron 0 .36
Calcium 0 .32
Chromium 0 .26
Copper 0 .03
Iron 0 .27
Lead 0 .37
Magnesium 0 .09
Manganese 0 .02
Nickel 0 .17
Silver 0 .07
Silicon 0 .25
Tin 0 .25
Titanium 0 .58
Vanadium 0 .78
Zinc 0 .06

The (0) values indicate nothing detected or less than zero.

All test were performed on an ATOMCOMP 2000 Dual Slit High Resolution DC Arc Spectrometer using

a cathode-enriched layer excited by 15 amps. D.C. current.

Typical Particle Size Distribution:

 Raman Analysis of Graphene Powder

  X-axis – Wavenumber Y- Axis – Intensity