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碘盐
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     Approach to the Color Change Mechanism of Iodized Salt
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     Study on Iodized Salt and Its Chemical Analysis
     及其化验研究
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     Basic knowledge of analytical reagents——salts
     三、
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     The salty coffee
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  iodonium salt
The crystal and molecular structures of a chiral cyclic iodonium salt, namely, 3,10-dimethyl-10H-dibenzo[b,e]iodinium tetrafluoroborate, is solved by the direct method (a = 20.678(5) ?, b = 20.738(5) ?, c = 8.408(2) ?, γ =120.404(5)° Z = 4, sp.
      
The iodonium salt with [B(C6F5)4]anion contains no fluorine able to react with the silicon.
      
Polymers with iodonium salt structure in the side chain
      
The iodonium salt was utilized as photoacid generator to produce protonic acid and drive TBZ into nanozirconia particles.
      
The course of the reaction is explained by ambident reaction of the cation of the iodonium salt.
      
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  iodonium salts
But surprisingly the iodine of the iodonium salts is also concentrated on gold.
      
We investigated the synthesis of polymer-bound iodonium salts with chloride as anion by polymer analogous reaction.
      
Hexamethylcyclotrisiloxane was found to undergo photoinitiated cationic ring-opening polymerization in solution and bulk, upon exposure to UV radiation, in the presence of either sulfonium or iodonium salts or an iminosulfonate derivative.
      
Synthesis of cyclic iodonium salts containing an asymmetric carbon atom
      
We report the synthesis of two iodonium salts with an asymmetric carbon atom in the cation, viz.
      
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The Treatment of o-iodobenzyl-p-nitrophenyl ether with 100% excessof K_2S_2S_8 in concentrated sulfuric acid,gave(Ⅰ).It was dissolved in85% formic acid,and into this solution was added the solution of NH_4CIin formic acid,and the chloride,(I)(x=CI),was obtained.M.P.194 8—195.5(d),m/e 389〔M~+.〕.In the solution of(I)was added thesolution of NaBr in formic acid and the bromide,(I) (x=Br),wasobtained,M.P.156°—158℃(d).m/e 434〔M~+.).

邻—碘溴化苄与对硝基酚作用,生成邻-碘苄基—对—硝基苯基醚,在浓硫酸中,以过量100%的过硫酸钾氧化,得了3—硝基—二苯骈—10—氧杂—七员碘盐杂环,继与 NH_4Cl,NaBr 分别作用,得其氯化物和溴化物.

The paper reports about the investigation in the area in which endemic goiter and endemic cretinism are epidemic, and iodates havy been used in treating and preventing these diseases for many years. With the varied topography of the area, the level of suffering from the diseases is obviously different. We have investigated 109 cases suffering from endemic cretinism. The patients with such a disease make up 97.2 per cent of them. It has been proted that mother's suffering from endemic goiter is one of the main...

The paper reports about the investigation in the area in which endemic goiter and endemic cretinism are epidemic, and iodates havy been used in treating and preventing these diseases for many years. With the varied topography of the area, the level of suffering from the diseases is obviously different. We have investigated 109 cases suffering from endemic cretinism. The patients with such a disease make up 97.2 per cent of them. It has been proted that mother's suffering from endemic goiter is one of the main causes of her children's suffering from the same one. The 109 csaes investigated all have family aggregation, According to the synthetical analysis of the distribution of the disease and the results of investigation in 109 cases in the area where the families of patients with endemic cretinisn, Live in a compact comminity we believe that the change in an environmental factor may be a decisive factor to cause the diseses.

本文调查了铁岭地区接受碘盐防治多年的地甲肿、地克病流行情况。结果表明按其不同地形分布患病水平明显不同;109例地克病患者中,其中神经型占97.2%。结果并说明母亲患地甲肿是出生地克病儿的主要原因之一。根据109例地克病患者的家族聚集性和疾病分布情况综合分析,认为环境因素变化对地甲肿—地克病的发病起决定性作用。

Urogenous iodide level of residents treated with 1/20000 iodinate salt for 3 years in endemic goiter area were tested and analyzed. We find that there is no correlative relation between incidence of endemie goiter and urogenous iodide value of the residents, but there is a positive correlation between incidence and degree of dispersion of urogenous iodide mean value. Disconneted supplies and unstable concentration of iodinate salt are main causes to increase the degree of dispersion. It is put for ward that...

Urogenous iodide level of residents treated with 1/20000 iodinate salt for 3 years in endemic goiter area were tested and analyzed. We find that there is no correlative relation between incidence of endemie goiter and urogenous iodide value of the residents, but there is a positive correlation between incidence and degree of dispersion of urogenous iodide mean value. Disconneted supplies and unstable concentration of iodinate salt are main causes to increase the degree of dispersion. It is put for ward that the exam and test of the prevention against endemic goiter with iodine salt should be observed by combining the mean value of iodine amount in urine and the degree of dispersion.

本文对1/2万碘盐防治地甲肿后三年中病区居民尿碘水平的变化进行了监测分析.碘盐防治后其患病率与病区居民尿碘值不存在相关关系,而与尿碘均值的离散程度呈正相关.碘盐供应中的间断和掺拌浓度不稳定是增大离散程度的主要原因.提出碘盐防治地甲肿的考核监测,应将居民尿碘含量的均值与离散程度结合起来观察.

 
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