Menu

2,6-DICHLOROPYRIDINE

Pyridine, 2,6-dichloro-

CAS NO:

2402-78-0

  • Türü                :
  • Formülü          : (C5H3N)Cl2
  • EINECS NO.  : 219-282-3
  • Mol Agırlığı    : 147.99
  • H.S. CODE     : 2933.39
  • Zehililik          :
  • Türevleri        :
  • Kütlesi           :
  • Ekleyen          : Kimyahane Editr

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Pale yellow crystal
MELTING POINT 86 C
BOILING POINT

211 C

SPECIFIC GRAVITY

 

SOLUBILITY IN WATER Insoluble
pH  
VAPOR DENSITY  
AUTOIGNITION

700 C

NFPA RATINGS Health: 1; Flammability: 1; Reactivity: 0
REFRACTIVE INDEX  
FLASH POINT

110

STABILITY Stable under normal conditions
APPLICATIONS

2,6-dichloro-Pyridine is used as an intermediate for manufacturing synthetic organic, pharmaceuticals (antihistamine drug, pheniramine, the antiarrhythmic, disopyramide) and agrochemicals (fungicides, herbicides). It is also used as a catalyst for phase transfer. According to Olin Corp., it is an intermediate in the manufacture of pyrithione-based biocides used in cosmetics and various pharmaceutical products.

ASSAY

95.0% min

MELTING POINT

86 - 87 C


SALES SPECIFICATION  

COLOR, APHA

 
APPEARANCE

Pale yellow crystal

CHEMICAL PURITY  
OPTICAL PUIRTY  
TRANSPORTATION  
PACKING
50kgs in Fiber Drum
HAZARD CLASS 6.1
UN NO. 2811
GENERAL DESCRIPTION OF PYRIDINE

PYRIDINE, also called azabenzene and azine, is a heterocyclic aromatic tertiary amine characterized by a six-membered ring structure composed of five carbon atoms and a nitrogen which replace one carbon-hydrogen unit in the benzene ring (C5H5N). The simplest member of the pyridine family is pyridine itself. It is colorless, flammable, toxic liquid with a unpleasant odor, miscible with water and with most organic solvents, boils at 115 C. Its aqueous solution is slightly alkaline. Its conjugate acid is called pyridinium cation, C5H5NH+, used as a oxidation agent for organic synthesis.. Pyridine is a base with chemical properties similar to tertiary amines. Nitrogen in the ring system has an equatorial lone pair of electrons, that does not participate in the aromatic pi-bond. Its aqueous solution is slightly alkaline. It is incompatible and reactive with strong oxidizers and strong acids, and reacts violently with chlorosulfonic acid, maleic anhydride, oleum, perchromates, b-propiolactone, formamide, chromium trioxide, and sulfuric acid. Liquid pyridine easily evaporates into the air. If it is released to the air, it may take several months to years until it breaks down into other compounds. Usually, pyridine is derived from coal tar or synthesized from other chemicals, mainly acetaldehyde and ammonia. Pyridine compounds are found in nature. For example, nicotine from tobacco, ricinine from castor bean, pyridoxine or vitamin B and P products, alkaloids (such as coniine, piperine and nicotine), and etc. Some pyridine compounds consumed largely are;

Picoline : Three structural isomers of methyl pyridines (alpha, beta, gamma- positions)
Lutidine : Six structural isomers of dimethyl pyridines (2,3-, ,24-, 2,5-, 2,6-, 3,4-, 3,5- positions)
Collidine : Three structural isomers of trimethyl pyridines (2,3,5-, 2,3,6-, 2,4,6- positions)
Pyrimidine: Pyridine alteration containing nitrogen atoms at positions 1 and 3
Piperidine: Hexahydropyridine (saturated form)
Nicotinic acid: pyridine-3-carboxylic acid

Pyridine and its derivatives are very important in industrial field as well as in bio chemistry. Nucleotide consist of either a nitrogenous heterocyclic base (purine or pyrimidine). Three major pyrimidines in living systems are cytosine, thymine, and uracil. Pyrimidine and its derivatives are biologically important components of nucleic acids (DNA, RNA) and coenzymes. Some pyridine system is active in the metabolism in the body. They can be the parent compound of many drugs, including the barbiturates. Pyridine and its derivatives are used as solvents and starting material for the synthesis of target compounds such as insecticides, herbicides, medicines, vitamins, food flavorings, feed additives, dyes, rubber chemicals, explosives, disinfectants, and adhesives. Pyridine is also used as a denaturant for antifreeze mixtures, as a dyeing assistant in textiles and in fungicides. Compounds not made from pyridine but containing its ring structure include niacin and pyridoxal; isoniazid, nicotine, and several other nitrogenous plant products.

Bu kimyasaln tedarikçisi veya üreticisi misiniz? Burada firmanzn logosu ile bulunmak ister misiniz? Ücretsiz üyelik sonras firma hesab açarak burada firma logonuz ile bulunabilirsiniz.
Online Satis ve danismanlik Projelerimiz