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Selenium reagent mixture ( 混合硒 )

产品名称: Selenium reagent mixture ( 混合硒 )
产品型号: 1080300250,1080301000,1080305000
产品展商: 其它品牌
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Selenium reagent mixture ( 混合硒 )为创赛集团品质提供Merck系列产品，可查询Selenium reagent mixture ( 混合硒 )价格，同系列Selenium reagent mixture ( 混合硒 )国内现货，可提供定合成服务。提供型号，性能指标等技术资料。提供Selenium reagent mixture ( 混合硒 )MSDS/COA/SPEC


Selenium reagent mixture ( 混合硒 )  的详细介绍
产品名称：Selenium reagent mixture ( 混合硒 )
产品货号：1080300250,1080301000,1080305000
产品包装：Plastic bottle
产品规格： 250 g/1 kg/5 kg


产品信息
Synonyms Wieninger's reagent
HS Code 3822 00 00
化学及物理数据
Solubility (20 °C) partly soluble
Bulk density 600 kg/m3
pH value ca.5.4 (50 g/l, H2O, 25 °C) (slurry)
**标示
R Phrase R 52/53
Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase S 61
Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Categories of danger dangerous for the environment
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 17
Inorganic selenium compounds are toxic and must be handled with caution. Container E. Elemental selenium can be recovered by first oxidizing the salts in aqueous solution with concentrated Nitric acid (Cat.No. 100443). The addition of Sodium hydrogen sulfite solution (Item No. 806356) then causes elemental selenium to precipitate out. Aqueous phase: Container D.
分类
Copper sulfate content (complexometric) ≥ 1.45 %
Sodium sulfate content (acidimetric) ≥ 94.0 %
Selenium content (gravimetrically) ≥ 1.5 %
Application test (total nitrogen) conforms

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