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brown-red
    Study on the Processing of Brown-red Spinel Pigment and the Mechanism of Formation
    棕红色颜料的制备及形成机理的研究
    A brown-red solid was synthesized through a solid state reaction among (NH4)2WS4, CuCland PPh3. The solid was extracted with CH2Cl2 and then diffused with CH3OH to obtain a yellow singlecrystal WS4Cu3(PPh3)3Cl.
    (NH_4)_2WS_4、CuCl和PPh_3三者发生固相反应,产生棕红色固体,将此固体经CH_2Cl_2萃取和CH_3OH扩散,可得黄色柱状单晶WS_4Cu_3(PPh_3)_3Cl.
    Brown-red or brown-grey AchE-positive precipitates were seen at 8, 12 and 16 weeks. AchE-combined with silver stain section showed claw-like regenerating nerve fibers connecting with the AchE -positive areas.
    术后8.12,16周的AchE阳性反应是棕红色或棕灰色沉淀,分布较规则,结合镀银的切片上还见神经纤维与AchE阳性部位相连,呈典型的“爪状分枝”.
    High temperature brown- red pigments of Fe2O3-Cr2O3-ZnO-MnO2 systems were synthesized. Aluminum hydroxide was used as forming agent for spinel. Composition and property of pigment were analyzed by Cffi chromaticity,XRD.
    以Fe2O3-Cr2O3-ZnO-MnO2四元系统为基础,同时添加促使尖晶石形成的活性剂-氢氧化铝,合成出了以ZnFe2O4等尖晶石为主晶相的高温棕红色颜料,借助于色度仪、XRD手段分析颜料的物相组成、色度,并对颜料的呈色及稳定性进行了讨论。
    VCA is a 50% aqueous solution of brown-red color,has viscosity ~10 mPa·s and is stable in 22% HCl solution at ≤40℃ over >7 days.
    VCA为50%水溶液,呈棕红色,粘度~10 mPa. s,在22%盐酸中当温度<40℃时可稳定存在7天以上。
    Study on Process for Brown-red Spinel Mechanism and Formation Principle
    棕红色颜料的制备及呈色机理研究
    MoCl_4 in ethyl acetate is of brown-red color, which is the result of three absorption bands in the red and the purple parts of spectrum due to the spin-allowed d-d transition.
    MoCl_4乙酸乙酯溶液呈棕红色,在光谱的紫区和红区共有三个自旋允许d—d跃迁吸收带。 主催化剂Mo(Ⅳ)络合物具有八面体构型。
    Aecording to the data acquired from drill holes and shallow boied well in She-Wu Shan sold deposit,the looSe strain are found to consist of 5 beds, namely,siliceous cap, red-brown colored gravel clay,light colored and net-like clay, brown-gray/brown-red colored clay and weak weathered zone, denominated respectively from top to bottom of the strata.
    通过对蛇屋山金矿钻孔资料及浅井资料的深入研究,将松散层自上而下划分为硅帽、褐红色(含)砾(质)粘土、浅色网纹状粘土、棕灰-棕红色粘土、弱风化带等五个层位。
    The Middle Jurassic is the main reservoir interval of coal-formed hydrocarbon, and the brown-red mudstone of the Upper Jurassic becomes the regional cap rocks.
    中侏罗统是煤成烃的主要储油层段,上侏罗统棕红色泥岩是区域性盖层。
    The main stratum in the region is Devonian and Carboniferous's carbonate rock. The red clay is broadly distributed because of red-claynization. The red clay thickness is commonly 2~20m, usually presents maroon or brown-red, in a vermiform or netty structure.
    东安地区出露岩层主要为泥盆系及石炭系碳酸盐岩 ,由于红土化作用 ,红粘土广泛分布 ,厚度一般在 2~ 2 0m,多呈褐红、棕红色 ,具蠕虫状、网状结构 .
    Juye formation is sedimentary of early Huanghe formation in Holocene,which is composed of brown-yellow silt,accompanying with brown-red clay;
    巨野组为全新世黄河早期沉积,由褐黄色粉砂夹棕红色粘土组成;
    Yutai formation is frontal depression sedimentary of Yellow river old crevasse splay,and its property is brown-red clay,accompanying with silt.
    鱼台组为黄河古决口扇前缘洼地沉积,岩性为一套棕红色粘土,局部夹粉砂土。
 

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