Plumbite of sodium and sulfur method.
酸钠和
酸铅法。
Plumbite of sodium and sulfur method.
酸钠和
酸铅法。
The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials.
以正庚醛、代
酸钠和溴代正丁烷为
,
成了正庚醛正丁
醇缩醛。
The disinfection facilities include storage, dosing and associated pipeline systems for sodium hypochlorite sodium bisulphite.
消毒设施包括次氯酸钠及亚酸钠储存,调控和相关的管道系统。
Water, Cetyl Alcohol, Propylene Glycol, Sodium Lauryl Sulfate, Stearyl Alcohol, Methylparaben, Propylparaben, Butylparaben.
水,十六醇,丙二醇,十二烷基酸钠,硬脂醇, Methylparaben , Propylparaben , Butylparaben 。
Each tablet contains 25mg Promethazine teoclate. Other ingredients include: lactose, sodium metabisulphite (E223).
本药品每片含有茶丙嗪25毫克,其它成分是:乳糖,焦亚
酸钠。
With sodium hyposulphite standard solution used in titration and starch developing agent as indicator,iron content can be determined.
以代
酸钠标准溶液漓定,以淀粉显色为指示剂,可测定铁含量。
Ingredients:olive extract, whitening factor,fatty alcohol polyoxyethyleneether sulfate, xanthane, polyethylene scratching particles, jojoba scratching particles.
橄榄提取液,美白因子,脂肪醇醚酸钠,汉生胶,聚乙烯磨砂粒,霍霍巴磨砂粒。
A separation model of ionizable and neutral enantiomers with cyclodextrin-sodium dodecyl sulphate (SDS) micellar electrokinetic chromatography was established.
建立了环糊精-十二烷基酸钠胶束电动色谱中可电高及电中性-光学
的分离模型。
After comparison,sodium hyposulfite is the preferred absorbent,which the resultant has no influence on the environment with sodium hyposulfite over absorbed dose.
经比较,代
酸钠吸收量大,生成物对环境没有影响,为首选吸收剂。
This paper describes a new technology for production of rongalite based on sodium pyrosulfite reduced by zinc powder and reacted with formaldehyde.
斜述了用焦亚酸钠为
,经锌粉还
与甲醛加成反应,生产次
酸氢钠甲醛的新工艺。
Organic chloramines may be stable in the natural water body for a long time.Some organic chloramines show resistant to the sodium sulfite during the dechlorination.
有机氯胺在一定条件下可以在自然水中长时间稳定存在,部分有机氯胺在脱氯时不易被亚
酸钠脱除。
Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.
本文对巯基乙酸的成工艺进行了比较研究,认为
氢化钠法和
代
酸钠法生产成本低,适宜于选矿用巯基乙酸的生产,而
脲法可得到较高浓度的巯基乙酸。
This paper studied the new synthetic technology of taurin (2- aminoethanesulforic acid).It was synthe sized by the reaction of monoethanol amine sulfate with sodium sulfrous in yield of 85%.
研究了牛磺酸(2-氨乙基磺酸)成的新工艺:用氨基乙醇
酸酯与亚
酸钠溶液反应制备,收率达85%。
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