Umicore consistently produces the highest quality of GeCl4 in the industry. Thanks to our exceptional  high purity, light transmission at the core of optical communication fibers can be maximised.
Our customers are able to manage their germanium price volatility exposure through Umicore’s extensive metals management expertise of spot purchase, hedging, tolling and metal leasing. We have  a proven track record with optical fiber manufacturers.
During the fiber production process, a significant amount of germanium is lost in waste streams as production scrap. Umicore leads the market in recovering germanium from these streams and refining it into ultrapure GeClâ‚„ for the latest generation of low-loss optical fibre. We ensure a secure germanium supply chain and offer unique solutions to treat a wide range of germanium-containing recycling streams.
| Grade |
Standard |
High |
Super High |
|
Hydrogen bonds |
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|
O – H |
≤ 0.2 ppm |
≤ 0.14 ppm |
≤ 0.12 ppm |
|
C – H  |
≤ 0.18 ppm |
≤ 0.09 ppm |
≤  0.05 ppm |
|
H – Cl  |
≤ 1 ppm |
≤ 0.24 ppm |
≤  0.1 ppm |
|
Hydrogen bonds determined by FTIR Spectrometry |
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|
Metallic impurities |
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|
Aluminum (Al), Chromium (Cr), Copper (Cu), |
≤ 1.0 ppb |
||
|
Cobalt (Co), Manganese (Mn) |
≤ 0.5 ppb |
||
|
Total metallic impurities |
≤ 10.0ppb |
||
|
Metallic impurities determined by ICP-MS |
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