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calcium carbide 25-50mm
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calcium carbide 25-50mm

CAS No.: 75-20-7
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Description

3. Specification:

GB10665-2004
Specification Superfine Grade First Grade Second Grade
Gas yield(L/kg)(L/kg) ≥ 305 295-305 285-295
PH3 content in acetylene (PH3%) ≤ 0.06 0.08 0.08
H2S content in acetylene (H2S%) ≤ 0.1 0.1 0.1

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