Calcium chloride dihydrate

Bezeichnung:Calcium chloride dihydrate

CAS-Nr10035-04-8

Englisch Name:Calcium chloride dihydrate

CBNumberCB6218827

SummenformelCaCl2H4O2

Molgewicht147.01

MOL-Datei10035-04-8.mol

Calcium chloride dihydrate physikalisch-chemischer Eigenschaften

Schmelzpunkt	30 °C
Dichte	1.71 g/mL at 25 °C(lit.)
Dampfdruck	0.01 mm Hg ( 20 °C)
Brechungsindex	~1.358
storage temp.	Store at +15°C to +25°C.
Löslichkeit	H₂O: 1 M at 20 °C, clear, colorless
Aggregatzustand	Solid
Wichte	0.835
Farbe	White to white-grayish
Geruch (Odor)	Odorless
Säure-Base-Indikators(pH-Indikatoren)	5 - 8
PH	4.5-8.5 (50g/l, H2O, 20℃)
Wasserlöslichkeit	1000 g/L (0 ºC)
Sensitive	Hygroscopic
maximale Wellenlänge (λmax)	λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.012
Merck	14,1659
Stabilität	Stable. Hygroscopic. Incompatible with vinylmethyl ether.
InChIKey	LLSDKQJKOVVTOJ-UHFFFAOYSA-L
LogP	-1.380 (est)
CAS Datenbank	10035-04-8(CAS DataBase Reference)
EPA chemische Informationen	Calcium chloride, dihydrate (10035-04-8)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36-36/37/38-22-20/21/22
S-Sätze:	26-24-22-36
WGK Germany	1
RTECS-Nr.	EV9830000
F	3
TSCA	Yes
HS Code	28272000

Gefahreninformationscode (GHS)

Calcium chloride dihydrate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36:Reizt die Augen.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R22:Gesundheitsschädlich beim Verschlucken.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S24:Berührung mit der Haut vermeiden.
S22:Staub nicht einatmen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
Calcium chloride is a colorless to off-white crystalline solid which is deliquescent (absorb water). When heated, crystals lose water @ 100C.
Verwenden
cosmetic ingredient.
Food grade calcium chloride is used in various applications within the food and beverage industries.
In the production of beer and soft drinks, CaCl2 is used as a source of calcium to regulate the hardness of water.
In the production of cheese, CaCl2 is used as a source of calcium.
CaCl2 is also used to increase the firmness of canned fruits and pickled vegetables.
CaCl2 is also used as a secondary cooling agent in various processes that operate according to food regulations.
Verwenden
Calcium chloride dihydrate is widely used as an ingredient in ceramic slipware, cosmetic and food items. It acts as a pH buffer in swimming pool water. It provides inhibition of swelling clays in the water phase of invert emulsion drilling fluids. It is employed in the oil industry to increase the density of solids-free brines. It is used as a flux in the Davy process for the manufacture of sodium through the electrolysis of molten sodium chloride. It finds an important application as an additive in plastics, fire extinguishers, blast furnaces and in wastewater treatment as a drainage aid.
Verwenden
Preparation of calcium standard solutions; electrolyte.
Definition
ChEBI: A hydrate that is the dihydrate form of calcium chloride.
Trademarks
Cal Plus (Mallinckrodt).
Biologische Funktion
Calcium chloride is a commonly used reagent in biochemistry. Calcium plays important roles in many biological processes, including signal transduction, muscle contraction, and maintenance of cell membrane and cell wall stability.Extensive reviews of the experimental measurement of biological calcium have been published.
Calcium chloride is used in the preparation and transformation of competent E. coli and in the transfection of eukaryotic cells with either plasmid DNA or high molecular weight genomic DNA.The CaCl2-mediated electroporation of E. coli with the plasmid DNA pBR322 has been studied.A protocol for the concentration of virus vectors that uses CaCl2 has been published.
CaCl2 has been used in the stabilization and twodimensional crystallization of the NADH-ubiquinone oxidoreductase (complex I) from Escherichia coli. The crystallization of porcine pancreatic elastase in the presence of CaCl2 in the presence of sodium citrate reveals binding of calcium in the metal binding site of the protein.The effect of CaCl2 on the total fluorescence in the polymerication of the tubulin-like FtsZ division protein of Escherichia coli has been studied by a multiwell fluorescent assay.
Allgemeine Beschreibung
ACS Reagent Grade.
Biochem/physiol Actions
Calcium chloride act as precipitants during protein crystallization process. It also enhances the competence of Escherichia coli cells as well as strengthened β-lactoglobulin gels by forming crossbridges.
mögliche Exposition
Calcium chloride is used as road salt for melting snow, a drying agent in desiccators, for dehydrating organic liquids and gases, in refrigeration brines and antifreeze, as a dust-proofing agent, food additives, concrete hardening accelerator, and others. May react with strong oxidizers.
Versand/Shipping
There are no label or maximum shipping quantity requirements set by DOT.
läuterung methode
Crystallise it from ethanol. It is hygroscopic. It loses H2O at 200o so it can be dried at high temperatures to dehydrate it. The hexahydrate [7774-34-7] has m 30o and d 1.67.

Properties and Applications

ITEMS	SPECIFICATION
APPEARANCE	WHITE,HARD ODORLESS FLAKE, POWDER,PELLET,GRANULE
CALCIUM CHLORIDE(As CaCl2)	77% min
MAGNESIUM&ALKALI METAL SALT (As NaCl)	4.0% max
WATER INSOLUBLE MATTER	0.2% max
ALKALINITY(As Ca(OH)2)	0.15% max
SULFATE (As CaSO4)	0.25% max
pH VALUE	7-11
As	5 ppm max
Pb	10 ppm max
Fe	10 ppm max

Inkompatibilitäten
The solution in water is a weak base. Reacts with zinc in presence of moisture, forming highlyflammable hydrogen gas. Dissolves violently in water with generation of much heat. Incompatible with water, bromine trifluoride; 2-furan, percarboxylic acid. May attack some building materials and metals in the presence of moisture.

Calcium chloride dihydrate Upstream-Materialien And Downstream Produkte

Calcium chloride dihydrate Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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