ChemicalBook Optimization Suppliers
名前:Shanghai Macklin Biochemical Co.,Ltd.  Gold
名前:KetoTech, Inc.  Gold
名前:Sinopharm Chemical Reagent Co,Ltd.  Gold
電話番号:400-666-7788 +86-10-82848833
名前:Meryer (Shanghai) Chemical Technology Co., Ltd.  
電話番号:+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
水和物 製品概要
别名:IC Anions No. 1 Mixture;Oxidane;R718;steam;Tritiotope;Wasser;Wasserdampf;Wasserstoffoxid
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Mol File:7732-18-5.mol
水和物 物理性質
融点 318 °C(lit.)
沸点 100 °C(lit.)
比重(密度) 1.515 g/mL at 20 °C
蒸気密度<1 (vs air)
蒸気圧3 mm Hg ( 37 °C)
屈折率 n20/D 1.34(lit.)
闪点 100°C
貯蔵温度 2-8°C
溶解性H2O: 1 M at 20 °C, clear, colorless
外見 powder
酸解離定数(Pka)pKa 13.996±0.001(H2O t = 25.00 I = 0.000) (Uncertain)
White to off-white
水溶解度 Soluble in water. Insoluble in polar liquids.
Merck 14,10039
安定性:Stable. Incompatible with reactive metals.
CAS データベース7732-18-5(CAS DataBase Reference)
主な危険性 C
Rフレーズ 36/38
Sフレーズ 26
RIDADR UN 1824 8/PG 2
WGK Germany 1
RTECS 番号WB4900000
HSコード 28530010
MSDS Information
SigmaAldrich English
ACROS English
ALFA English
水和物 Usage And Synthesis
化学的特性colourless liquid
使用For use in the preparation of cell culture media, and cell suspension and washing solutions.
使用For use in embryo manipulation.
使用water is listed also as catalyzed, deionized, demineralized, distilled, pure spring, and purified water. Water is an important skin component and is essential for its proper functioning. It is the most common ingredient used in cosmetic formulations and, therefore, is generally listed first on product labels. Water is usually processed to eliminate hardness and minerals, and to avoid product contamination.
定義ChEBI: An oxygen hydride consisting of an oxygen atom that is covalently bonded to two hydrogen atoms.
純化方法Conductivity water (specific conductance ca 10-7 mho) can be obtained by distilling water in a steam-heated tin-lined still, then, after adding 0.25% of solid NaOH and 0.05% of KMnO4, distilling once more from an electrically heated Barnstead-type still, taking the middle fraction into a Jena glass bottle. During these operations suitable traps must be used to protect against entry of CO2 and NH3. Water, only a little less satisfactory for conductivity measurements (but containing traces of organic material) can be obtained by passing ordinary distilled water through a mixed bed ion-exchange column containing, for example, Amberlite resins IR 120 (cation exchange) and IRA 400 (anion exchange), or Amberlite MB-1. This treatment is also a convenient one for removing traces of heavy metals. (The metals Cu, Zn, Pb, Cd and Hg can be tested for by adding pure concentrated ammonia to 10mL of sample and shaking vigorously with 1.2mL of 0.001% dithizone in CCl4. Less than 0.1Yg of metal ion will impart a faint colour to the CCl4 layer.) For almost all laboratory purposes, simple distillation yields water of adequate purity, and most of the volatile contaminants such as ammonia and CO2 are removed if the first fraction of distillate is discarded. Most laboratories have glass stills that “doubly” or “trebly” distil water. [See “water” in Chapter 1.]