| 单词 | sulfur trioxide |
| 释义 | sulfur trioxide [`sǝl·fǝr trī`äk´sīd] INORGANIC CHEMISTRY SO3 A toxic, irritating liquid in three forms, α, β, γ, with respective melting points of 62°C, 33°C, and 17°C; a strong oxidizing agent and fire hazard; used for sulfonation of organic chemicals. |
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