离岸价格
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国:
China
モデル番号:
H2Se
离岸价格:
ロケーション:
China
最低注文量の価格:
-
最低注文量:
-
パッケージの詳細:
seamless steel Cylinders
納期:
4 weeks
供給能力:
-
支払いタイプ:
T/T, L/C, D/A, D/P
製品グループ :
連絡先担当者 Mr. tony
Jinfeng Road,Heshun,Lishui,Nanhai, Foshan, Guangdong
H2Se is commonly used
in the synthesis of Se-containing compounds. It adds across
alkenes. Illustrative is the synthesis of selenoureas from
nitriles. H2Se gas is
used to dope semiconductors with selenium.
Safety
The gas is hazardous, being one of the most toxic compound of selenium and far more toxic than its congener hydrogen sulfide. The threshold limit value is 0.*5 ppm. At high concentrations even exposure for less than a minute causes the gas to attack the eyes and mucous membranes causing cold-like symptoms for at least a few days afterwards. In Germany, the limit in drinking water is 0.**8 mg/L, and the US EPA recommends a maximum contamination of 0.*1 mg/L.
| 国: | China |
| モデル番号: | H2Se |
| 离岸价格: | Get Latest Price |
| ロケーション: | China |
| 最低注文量の価格: | - |
| 最低注文量: | - |
| パッケージの詳細: | seamless steel Cylinders |
| 納期: | 4 weeks |
| 供給能力: | - |
| 支払いタイプ: | T/T, L/C, D/A, D/P |
| 製品グループ : | industrial specialty gas |
