Web1、萘分子中，共价键上的c原子没有氢，编号时不用管。 2、离共价键最近的有4个c原子，编为1号碳原子。 3、然后沿环的一侧编号，将一个环编完只后再编另一个，其中编号为8的碳原子肯定会和1号碳原子隔的很近。 Web1, 2, 4, 8, 16, 32, 64,128,256, ... This sequence starts at 1 and has a common ratio of 2 . The pattern is continued by multiplying by 2 each time, like this:
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Web1 / 2: 1 / 4: 3 / 8 (One-Half) (One-Quarter) (Three-Eighths) The top number says how many slices we have. The bottom number says how many equal slices the whole pizza was cut into. Have a try yourself: Equivalent Fractions. Some fractions may look different, but are really the same, for example: 4 / 8 = 2 / 4 = 1 / 2 Web理化性质：无固定熔点快速加热在200-250℃时分解，慢慢加热在140-150℃脱水生成1,4,5,8—萘二酐。 溶解性: 常温下：萘四甲酸微溶于水、热醋酸和热乙酸，易溶于丙酮，极微溶于苯、氯仿、 二硫化碳 和乙醇。
Webn1,4,5,8-四氯蒽醌n英文名称：1,4,5,8-tetrachloroanthraquinonenCAS： 81-58-3n标准： 企标nEINECS号：201-362-4n分子式：C14H4 首页 资讯中心 WebJan 14, 2024 · 1,5-二氨基蒽醌毒理学数据: 1、皮肤/眼睛刺激：兔子眼睛标准德雷兹染眼实验：500mg/24H 对眼睛有轻微的刺激作用。 2、急性毒性：大鼠经腹膜LD5O：1300mg/kg
Web中文名 1,4,5,8-四羟基蒽醌 外文名 9,10-Anthracenedione,1,4,5,8-tetrahydroxy- 化学式 C14H8O6 分子量 272.2097 CAS登录号 81-60-7 沸 点 WebRules for expressions with fractions: Fractions - use a forward slash to divide the numerator by the denominator, i.e., for five-hundredths, enter 5/100.If you use mixed numbers, leave a space between the whole and fraction parts. Mixed numerals (mixed numbers or fractions) keep one space between the integer and fraction and use a forward slash to input …
Web化工产品查询提供CAS号2475-45-8,分散兰1,1,4,5,8-四氨基蒽醌,分散蓝1,分散兰1,分散兰 1 [CI 64500],Disperse Blue 1,C14H12N4O2物理化学基本性质,分子式,分子结构,密度,熔点, …
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