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Information Name: | Imported chemicals | chemicals | Jing Chi Bose equipment |
Published: | 2014-12-30 |
Validity: | 0 |
Specifications: | Limited |
Quantity: | |
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Detailed Product Description: | Potassium is silver-white metal cube structure, physicochemical properties and sodium are very similar. Potassium soft and light Use a knife cutting, new section has a silvery sheen. Potassium is a good conductor of heat and electricity, and has good permeability, potassium sodium alloy (liquid) is a nuclear reactor thermal agent. Elemental potassium also has good ductility, low hardness, can be dissolved in liquid ammonia and mercury, dissolved in liquid ammonia to form a blue solution. Isotopes of potassium has been found a total of 28 kinds of chemical agents, including potassium from 32 to 55 K, which is only present in nature potassium 39, K 40 and K 41, other isotopes are made by a human. Radioactive potassium 40, is one of the important sources of natural radioactivity in rocks and soils of the background. Name: the color range of color indicator type indicator is not affected by an amount of, but the indicator itself is an acid or a base, to consume a certain color indicator titrant chemical reagent bottle 500g, thereby increasing the measurement error. For monochrome indicator, the amount of excess, the color range is used to move the pH value decreases occurred direction will increase the titration error. For example: with 0.1mol / LnaOH titration 0.1mol / LHAc, pHsp = 8.5 Dongguan supply of various types of chemical reagents, jump in the range of pH8.70-9.00, if the titration volume of 50ml Chemical Reagent home, drip 2-3 drops of phenolphthalein, about the event at pH = 9 red; if drops 10-15 drops of phenolphthalein, the red appears at 8:00 pH =. Obviously the latter titration error is much greater. Indicator excessive amount, but also affect the color of acumen. For example: methyl orange as indicator, titrated with NaOH HCl solution, the end of an orange, if the amount of excess methyl orange end acumen on the poor. Imported chemicals | chemicals | Jing Chi Bose equipment from Dongguan Changan Jing Chi Bose equipment operators offer. Dongguan Changan Jing Chi Bose equipment operators (www.jingchb.com) strong, credible, in Dongguan, Guangdong chemicals industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jing Chi Bose equipment and you hand into the brilliant, for a better future! |
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Copyright © GuangDong ICP No. 10089450, Dongguan Changan Jing Chi Bose equipment operators All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 9861 visitor
Copyright © GuangDong ICP No. 10089450, Dongguan Changan Jing Chi Bose equipment operators All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility