(kg) 200 3AA2265 9×51 23×130 119 54 1.55 (43.9) 70 31.82 成分 规范单位 CHF3 ≥ 99.999% %V N2 ≤ 5 ppmv O2 ≤ 2 ppmv H2O ≤ 3 ppmv 酸度(HF) ≤ 0.1 ppmw CO2 ≤ 3 ppmv 三氟甲烷(CHF3) 安全须知: 三氟甲烷是一种不燃烧的无色、无味的液化气体,充装于钢瓶中,压力为其蒸气压...
H2O complex have been investigated using high-level ab initio calculations and IR matrix isolation spectroscopy. In contrast to previous findings, the computations at the CCSD(T)/L3a_3 and MP2/L3a_3 levels of theory revealed only one structure of the complex stabilized by two C-H…O and ...
___。 相关知识点: 试题来源: 解析 [答案] 三氟甲烷中由于3个F原子的吸引使得C原子的正电性增强,从而三氟甲烷中的H原子可与H2O中的O原子之间形成氢键 反馈 收藏
百度试题 题目 试写出CF3Cl、CH4、CHF3、C2H3F2Cl、H2O、CO2的编号。 相关知识点: 试题来源: 解析 答:CH4 代号为:R50; CH2F-CF3 代号为:R134a NH3 分子量为17,故其代号为R717 反馈 收藏
三氟甲烷,又称三氟甲,是一种无色、微味,不导电的气体,是理想的卤代烷替代物。 三氟甲烷 (CHF3) 三氟甲烷气体包装:采用47L钢瓶充装,也可根据客户需要分装到8L的气瓶中。 三氟甲烷气体用途:用作电子工业等离子体化学蚀刻剂、低温(-100℃)制冷剂及氟有机化合物的原料。
H2O complex have been investigated using high-level ab initio calculations and IR matrix isolation spectroscopy. In contrast to previous findings, the computations at the CCSD(T)/L3a_3 and MP2/L3a_3 levels of theory revealed only one structure of the complex stabilized by two C-H…O and ...
三氟甲烷在常温常压下为无色无臭无毒气体。化学性质不活泼,空气中不燃烧,在高温时分解产生有毒气体。 三氟甲烷技术指标: 组分/杂质 比例/含量 三氟甲烷含量 >99.999% 氧O2 <2ppm 氮N2 <5ppm 二氧化碳CO2 <3ppm 水H2O <3ppm 酸度(HCL) <0.1ppmw 三氟甲烷备注规格 ...
Na3(PO4)(12H2O) COOHCl C6H5C2H3(OH)2 LaFeSi HF2{-} C3(H8) Fe2H5 NH3C2H2O2 C6H5(C3H7)2 Recently Calculated Molar Masses Find the Molar Mass of Fluoroform, CHF3 Step-by-Step There are 4 easy steps to find the molar mass of CHF3 based on its chemical formula. 1. Count The...
Under specific conditions, \\{CO\\} and \\{H2O\\} may react further through the water–gas shift reaction and form solid metal carbonate. Extent of fluorination strongly depends on temperature and is dictated by the nature of the solid precursor. Alkali hydroxides, KOH, NaOH, and LiOH, ...
例子:Fe, Au, Co, Br, C, O, N, F。 离子电荷尚未得到支持,将被忽略。 替换不可改变的组以避免歧义。例如,C6H5C2H5 + O2 = C6H5OH + CO2 + H2O不能被平衡,但XC2H5 + O2 = XOH + CO2 + H2O可以。 不需要复合状态[如(s)(aq)或(g)]。 你可以用小括号()或括号[ ]。例子...