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Wasser Produkt Beschreibung

Water Struktur
7732-18-5
CAS-Nr.
7732-18-5
Bezeichnung:
Wasser
Englisch Name:
Water
Synonyma:
Eis;LYE;PP18;R718;Aqua;steam;WATER;Wasser;SC-3000;Oxidane
CBNumber:
CB5854297
Summenformel:
H2O
Molgewicht:
18.01
MOL-Datei:
7732-18-5.mol

Wasser Eigenschaften

Schmelzpunkt:
318 °C(lit.)
Siedepunkt:
100 °C(lit.)
Dichte
1.515 g/mL at 20 °C
Dampfdichte
<1 (vs air)
Dampfdruck
3 mm Hg ( 37 °C)
Brechungsindex
n20/D 1.34(lit.)
Flammpunkt:
100°C
storage temp. 
2-8°C
Löslichkeit
H2O: 1 M at 20 °C, clear, colorless
Aggregatzustand
powder
pka
pKa 13.996±0.001(H2O t = 25.00 I = 0.000) (Uncertain)
Farbe
White to off-white
Wichte
1.000 (20/20℃)
Relative polarity
9
PH
14 (H2O, 20°C)
Wasserlöslichkeit
Soluble in water. Insoluble in polar liquids.
maximale Wellenlänge (λmax)
λ: 205 nm Amax: 0.01
λ: 210 nm Amax: 0.01
λ: 250-400 nm Amax: 0.005
Merck 
14,10039
BRN 
2050024
Stabilität:
Stable. Incompatible with reactive metals.
CAS Datenbank
7732-18-5(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher C
R-Sätze: 36/38
S-Sätze: 26
RIDADR  UN 1824 8/PG 2
WGK Germany  1
RTECS-Nr. WB4900000
34
TSCA  Yes
HS Code  28530010

Wasser Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R36/38:Reizt die Augen und die Haut.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Chemische Eigenschaften

colourless liquid

Verwenden

For use in the preparation of cell culture media, and cell suspension and washing solutions.

Verwenden

For use in embryo manipulation.

Verwenden

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.

Verwenden

Water is a colorless, odorless, tasteless liquid formed by the combi- nation of two hydrogen and one oxygen atoms. it allows substances to dissolve and functions as a solvent, dispersing medium, hydrate, and promoter of chemical changes. it is a major constituent in meats, fruits, and vegetables. distilled water is obtained by conden- sation of water vapor.

Definition

ChEBI: An oxygen hydride consisting of an oxygen atom that is covalently bonded to two hydrogen atoms.

läuterung methode

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.]

Wasser Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Wasser Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 256)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21707 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
Jinan Carbotang Biotech Co.,Ltd.
+86 15866703830
+86 0531-61324629 figo.gao@foxmail.com CHINA 720 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23977 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28236 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 8922 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 sales@guangaobio.com CHINA 23049 58
Shandong chuangyingchemical Co., Ltd.
13156170209
sale@chuangyingchem.com CHINA 4419 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 shenlinxing@macklin.cn China 15719 55

7732-18-5(Wasser)Verwandte Suche:


  • CAUSTIC SODA FLACK
  • CAUSTIC SODA FLAKES 96% MIN
  • CAUSTIC SODA/CAUSTIC SODA FLAKES
  • CAUSTIC SODA LYE 50% VTV 50T
  • CAUSTIC SODA LYE 46 TO 48 %
  • CAUSTIC SODA FLUX
  • CAUSTIC SODA 50% GRADE
  • CAUSTIC SODA (SODIUM HYDROXIDE)
  • CAUSTIC SODA FLAKE
  • SODIUM HEXA META PHOSPHATE(SHMP)
  • CAUSTIC SODA LYE
  • CAUSTIC SODA LIQUID
  • CAUSTIC SODA 47 % MINIMUM
  • CAUSTIC SODA PRILLS
  • WATER, ACS, FOR INORGANIC TRACE ANALYSIS
  • WATER, A.C.S. REAGENT
  • WATER, FOR CELL BIOLOGY, ULTRAFILTERED A ND AUTOCLAVED
  • WATER PURIFIED, S01, 2.5 L
  • WATER USP GRADE
  • WATER, FOR HPLC, FILTERED
  • CM-MOISTURE TESTER 10X 1 00+-0 01 ML WA
  • WATER,FOR MOLECULAR BIOLOGY, 100 ML
  • Water solution, contains 0.05%(v/v) acetic acid
  • WATER, FOR ANALYTICAL PURPOSES
  • Water, for IC
  • WATER FOR UV-SPECTROSCOPY
  • WATER-16O, NORMALIZED, 17O-AND 18O-DEPLE TED, 99.99 ATOM % 16O
  • WATER FOR LUMINESCENCE
  • WATER ENDOTOXIN-FREE
  • WATER BI-DEST., 1 L
  • WATER, FOR EMBRYO TRANSFER,*EMBRYO TESTE D
  • WATER WITH 0.035% ACETIC ACID, HPLC GRA&
  • WATER PURIFIED S01 1 L
  • WATER, FOR MOLECULAR BIOLOGY
  • WATER CHROMASOLV FOR HPLC
  • WATER HPLC CERTIFIED B&J BRAND
  • WATER F. ENDOTOXIN TRACE ANAL. ULTRA-&
  • WATER FREE OF OXYGEN AND CO(2)
  • WATER, BIOTECHNOLOGY PERFORMANCE CERTIFI
  • FLUDIOXONIL PESTANAL, 100 MG
  • LC-NMR REF STD,1% WATER IN DEUTERIUM OXIDE 99.9 ATOM % D
  • destilled
  • bidistilled,5L
  • ultrapure,sterile,suitableforHPLC523392
  • bidistilled,sterile,500ml
  • A.C.E.SequencingWater/CH63857
  • HPLCGrade/CH63857
  • Leitungswasser
  • Water:Drinkingwater
  • DNAsynthesisandproteinsequencinggrade,2,5LApplichemGmbH
  • withoutnucleases
  • ultrapurewater(WFIinBulk)523397
  • sterile,nucleasefree/CH63857
  • Water, deionized reagent grade III, pure
  • Water, demineralized, pure
  • Water, DNAse, RNAse and Protease free, for molecular biology
  • Water, for HPLC gradient grade
  • WATER DEIONIZED (HPLC)
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