硝基甲烷制羟胺盐

用硫酸和盐酸水解硝基甲烷制得了硫酸羟胺和盐酸羟胺，羟胺得率可达８１％－９４％，硝酸和硝基甲烷反应未得到硝酸羟胺，讨论了三种酸和硝基甲烷反应的区别及酸用量，反应体系中添加硫酸铵等的影响。     

河道淤砂提钪浸出试验研究

对从河道淤砂中提取钪的新工艺进行了研究。试验考察了盐酸、硝酸、硫酸以及盐酸加助溶剂浸出钪时各因素的影响和浸出效果,以及氯化焙烧浸出、碱熔合浸出的浸出效果。试验结果表明,在三种酸的浸出试验中HN03浸出率为59．20％,略高于盐酸,但盐酸加助熔剂浸出率高达80．94％。而氯化焙烧浸出、碱熔合一水解浸出的浸出率分别高达82,79％和99．79％。     

国内化工产品市场价格

（单位：元／吨）序号　产品名称　规格型号　单价　包装１．硫酸 ９８％ 　３５０－６００　　净水２．硫磺 ９９％ ６００　－ ９２０　散货３．硫磺粉 ２００目９９％ １１００－１６００　带４．盐酸 ３１％ ５００－７２０　净水５．硝酸　 ９８％ 　１７５０－２３００　带６．纯碱 　９９％ １１００－１５５０　带７．烧碱 　９６％ １８５０－２６００　带８．氢氧化钾 ９２％ ５２００－ ６６００　带９．硫酸铵　一级　６２０－８５０　带 １０．硫酸铜 　９６％ 　４８００－５５００　带 １１．硫酸镁 ９９％ ６００－ ８００…     

硝基甲烷制羟胺盐

用硫酸和盐酸水解硝基甲烷制得了硫酸羟胺和盐酸羟胺,羟胺得率可达81％～94％,硝酸和硝基甲烷反应未得到硝酸羟胺,讨论了三种酸和硝基甲烷反应的区别及酸用量、反应体系中添加硫酸铵等的影响。     

1-硝基蒽醌的合成研究

以蒽醌和硝化剂为原料，在钠盐的作用下合成1－硝基蒽醌。讨论了影响反应的诸因素，得出较佳的反应条件为：反应温度20℃，反应时间3h，原料质量比（蒽醌：99％硝酸：98％硫酸：磷酸：钠盐）为1：2．2：1：0．5：0．02，产物1－硝基蒽醌含量为86．4％。采用有机溶剂法精制后，产品全程收率71．4％，纯度98．1％。标题产物经气相色谱和色谱－质谱联用谱仪确证。     

电位滴定法测定感光材料中的银

提出了电位滴定法测定感光材料中银的方法。对测试条件进行了研究,回收率为96．5％－101．7％,相对标准偏差为0．26％,与硫酸氰钾沉淀法比较,相对误差为－1．6％－0．3％,结果较为满意。     

关于GB／T20211-2006《烟花爆竹用钛粉》测定三酸不溶物的一点异议

采用现行国家标准GB／T 20211-2006《烟花爆竹用钛粉》测定三酸不溶物（硫酸、盐酸、硝酸）含量，结果测定值为200％-300％，而标准规定值为0．1％-1％，因而原标准方法测得的结果并不是钛粉中的杂质含量，本文通过多次实验，找到了原标准的失误之处以及测定烟花爆竹用钛粉中三酸不溶物含量的方法，并从理论上进行了解释。     

5—甲基—2—氨基—1，3，4—噻二唑的合成

本文报道了用硫代氨基脲与乙酸在盐酸、磷酸、多聚磷酸、硫酸等催化下，合成5－甲基－2－氨基－1，3，4－噻二唑，并对工艺条件进行了实验。结果表明，最佳工艺条件为硫代氨基脲与乙酸的摩尔比为1：1．4，浓盐酸催化，回流3小时，产率为74．34％。     

近期化工产品参考价格

近期化工产品参考价格单位元／吨硫酸≥９８％３３０～３５０硫酸≥９２．５％３１０～３３０盐酸≥３０％３００～４４０硝酸≥９８％１４００～１６５０烧碱≥９６％２１００～２４００纯碱≥９９％１５３０～１８００黄磷≥９９．９％６８００～８９００硫磺块≥９９．...     

蒽醌溶剂硝化法合成1—硝基蒽醌

蒽醌在溶剂中经混酸硝化合成１－硝基蒽醌，通过实验得到了溶剂用量对硫酸浓度和用量及硝酸用量的影响，实验表明：产物中１－硝基蒽酯的纯度达７９．１％，摩尔收率为７９．６％（以蒽酯计）。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。