CHEMICAL ANALYSIS:  
W03min 99.75 guaranteed99.88 typical
LOI @ 750omax 0.25 guaranteedLOI @ 750o max 0.25 guaranteed 0.12 typical
TRACE PURITY:  
50 ppm maxNa Mo 
20 ppm maxCa Fe Si 
10 ppm maxHeavy metal as Pb 
5 ppm maxAl As K Ni 
2 ppm maxCr Cu 
PHYSICAL:  
ColorYellow 
FormPowder 
Fisher Sub-Sieve10-20 micron 
Loose Density1.95 - 3.35 gr/cc (Scott) 

PACKING: Polybags inside drums 350 Pounds net

ORIGIN: USA