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     Toyo Tanso USA, Inc.
     2575 NW Graham Circle
     Troutdale, OR 97060
     Phone: 503.661.7700
     Fax: 503.669.9107

Toyo Tanso USA has various purification vessels that remove metallic impurities from graphite. We use multiple halogens to remove these impurities at high temperatures. Toyo Tanso guarantees to provide graphite that has been purified with ash levels below 5ppm. Toyo also can provide an augmented process that utilizes Argon as a carrier gas to provide exceptionally low levels of Boron and Nitrogen. Our goal is to set the industry standard for high purity products. These products have served to be important to our customers requiring elevated performance. These purer products will help yield the results you desire for that performance.
Grapihte Purify, Coating, SiC
Element Content / ppm (wt) Mothod
Boron (B) 0.20 AP
Sodium (Na) <0.05 AAS
Magnesium (Mg) <0.02 ICP-AES
Aluminum (Ai) 0.08 ICP-AES
Silicon (Si) 0.10 AP
Potassium (K) <0.10 AAS
Calcium (Ca) <0.04 ICP-AES
Titanium (Ti) <0.09 ICP-AES
Vanadium (V) <0.07 ICP-AES
Chromium (Cr) <0.07 ICP-AES
Manganese (Mn) <0.03 ICP-AES
Iron (Fe) 0.04 ICP-AES
Nickel (Ni) <0.10 AAS
Copper (Cu) <0.08 ICP-AES
Total Ash <5 Burn Out
ICP-AES : Inductively Couple Plasma-Atomic Emission Spectrometry
AP : Absorption Photometry
AAS : Atomic Absorption Spectrometry
"<" : shows less than Detection Limit.
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