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refractive index
折射率
最后更新: 2013-06-12
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with a refractometer the refractive index of optical media is determined. if the refractive index of a chemical is known it can be used after a synthesis to determine the sample's purity or to audit the synthesis' success.
折射计用于测量光学媒介的折射率。 不同的化学品有不同的折射率。 在化学合成后常用折射计测定样品的折射率以确定它的纯度或者间接地审查化学合成是否成功 。
the us environmental protection agency stated that in the usa, only very small amounts of cns (about 15 tons/year in 1981) were still being used, mainly as refractive index testing oils and as capacitor dielectrics.
美国环保局称,在美国,只有非常少量的氯化萘(1981年约15吨/年)仍在使用,主要用作折射率测试油和电容器的电介质。
:: diamond means a natural mineral consisting essentially of pure crystallized carbon in the isometric system, with a hardness on the mohs (scratch) scale of 10, a specific gravity of approximately 3.52 and a refractive index of 2.42.
* 钻石是指基本上由等轴晶系中的纯结晶碳组成、莫氏(划痕)硬度标上硬度为10、比重约为3.52、折射指数为2.42的一种天然矿产物,
higher chlorinated congeners have been used mostly, in terms of volume, for cable insulation and flame-proofing, wood preservation, engine and gear oil additives, electroplating masking compounds, feedstock for dye production, dye carriers, dielectric impregnates for capacitors/condensers, and refractive index testing oils.
从数量上来说,高氯化同系物最主要的用途是电缆绝缘和阻燃剂、木材防腐剂、发动机和齿轮油添加剂、电镀遮蔽化合物、生产染料的原料、染色载体、电容器/冷凝器的介质浸渍液和折射率测试油。