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Arsenic is very similar chemically to its predecessor phosphorus, so much so that it will partly substitute for it in biochemical reactions and is thus poisonous. When heated it rapidly oxidizes to arsenic trioxide, which has a garlic odor. Arsenic and some arsenic compounds can also sublime upon heating, converting directly to a gaseous form. Elemental arsenic is found in two solid forms: yellow and gray/metallic, with specific gravities of 1.97 and 5.73, respectively.
High purity arsenic is important as component of III-V semiconductors (such as Gallium Arsenide and Indium Arsenide), used mainly in components for wirless communication and for LED. In addition, High purity arsenic is used for doping silicon.
The As materials Dlrow deals with:
Analysis by Glow Discharge Mass Spectrometry (GDMS)
| Element |
6N |
7N |
Element |
6N |
7N |
| ppb (w) |
ppb (w) |
ppb (w) |
ppb (w) |
| Al |
4 |
3 |
Li |
2 |
1 |
| Mg |
8 |
<8 |
F |
<6 |
<5 |
| Ti |
<7 |
<4 |
Ce |
<0.6 |
<0.7 |
| Cr |
2 |
1 |
Co |
<2 |
<0.7 |
| Mn |
<1 |
<1 |
K |
<1 |
<1 |
| Ni |
10 |
5 |
Si |
10 |
10 |
| Cu |
<20 |
<6 |
Be |
<6 |
<1 |
| Zn |
<8 |
<6 |
Na |
1 |
1 |
| Ag |
1 |
1 |
Se |
<10 |
<1 |
| Cd |
<0.5 |
<0.5 |
Ca |
<20 |
<7 |
| S |
10 |
10 |
Te |
<10 |
<1 |
| Au |
<1 |
<1 |
Sn |
<10 |
<10 |
| Pb |
<10 |
<4 |
Ge |
1 |
1 |
| Fe |
5 |
1 |
Bi |
<3 |
<3 |
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Size: Broken pieces with size 1 – 15 mm. Other size upon request
Packing: In glass bottle with nitrogen filled, sealed in plastic bag 1500 grams or 3000 grams per bottle, other bottle size upon request
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