But there may be one other worthy of note, in that the first run, which used no pure element, but combined both a sulfur curative (tetramethyl thiuram disulfide) and a tellurium
diethyl dithiocarbamate), resulted in the best combination of no hardness change and minimal compression set in the long duration heat tests.
Sylvanite is the principal telluride mineral at the Emperor mine, and occurs in a range of associations, intergrown on a fine scale with pyrite, tetrahedrite, arsenopyrite, hessite, native tellurium
and occasionally gold.
Given the tellurium
copper's propensity to produce BUE, the drilling operation of female contacts presented a special challenge.
Current Plasmon 12-inch media uses an ablative Tellurium
layer, which is not suitable for multi-layer recording.
We want to understand the evolution of tellurium
- and by extension any other element - from the Big Bang to today," said Anna Frebel, an assistant professor of astrophysics at MIT and a co-author of the study.
With this transaction, the British group expects to be self sufficient in tellurium
dioxide crystals, a strategically important material to G&H.
A vertically integrated miner, refiner and producer of tellurium
(Te) and high-purity tellurium
based metals for specific segments of the global electronic materials market, Apollo Solar also announced that gross profit for 2008 increased 164% to $1.
in the metal will have an adverse affect on metal quality, because it is a strong carbide-forming element.
diethyldithiocarbamate (TDEC) has been used as a booster in the vulcanization of EPDM, but has become cost prohibitive, according to the company.
These include arsenic (As), selenium (Se), bismuth (Bi), tellurium
(Te), anti-mony (Sb), tin (Sn), lead (Pb) and mercury (Hg).
The European Commission decided on 22 June not to authorise Sweden to unilaterally impose general controls on shipments of waste lead, cadmium, antimony, beryllium, thallium, selenium and tellurium
(waste materials included in the "green list" of EEC Regulation 259/93 which are not subject to any specific control procedures).
It also says that heavy metal is understood to mean any compound of antimony, arsenic, cadmium, chrome (VI), copper, lead, nickel mercury, selenium, tellurium
, thallium and tin, along with these metals in a metallic form provided they are listed as hazardous substances.