Plumbite of sodium and sulfur method.
和
铅法。
Plumbite of sodium and sulfur method.
和
铅法。
The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials.
以正庚醛、和溴
正丁烷为原料,合成了正庚醛正丁
醇缩醛。
The disinfection facilities include storage, dosing and associated pipeline systems for sodium hypochlorite sodium bisulphite.
消毒设施包括次氯及亚
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,硬脂醇, Methylparaben , Propylparaben , Butylparaben 。
Each tablet contains 25mg Promethazine teoclate. Other ingredients include: lactose, sodium metabisulphite (E223).
本药品每片含有茶异丙嗪25毫克,其它成分是:乳糖,焦亚。
With sodium hyposulphite standard solution used in titration and starch developing agent as indicator,iron content can be determined.
以标准溶液漓定,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,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-十二烷基胶束电动色谱中可电高及电中性-光学异构体的分离模型。
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,
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.
斜述了用焦亚为原料,经锌粉还原与甲醛加成反应,生产次
氢
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体中长时间稳定存在,部分有机氯胺在脱氯时不易被亚脱除。
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.
本文对巯基乙的合成工艺进行了比
研究,认为
氢化
法和
法生产成本低,适宜于选矿用巯基乙
的生产,而
脲法可得到
高浓度的巯基乙
。
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(2-氨乙基磺
)合成的新工艺:用氨基乙醇
酯与亚
溶液反应制备,收率达85%。
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