English name 2-chloro-3(trifluromethyl)pyridine
Alias 2,3-CTF
Formula C6H3ClF3N
Molecular weight of 181.54
CAS Registry Number 65753-47-1
Wednesday, January 22, 2014
Thursday, January 16, 2014
What is 1,2-Propanediol?
Propylene glycol, aswell alleged 1,2-propanediol or propane-1,2-diol, is an amoebic admixture (a diol or bifold alcohol) with blueprint C3H8O2. It is a colorless, about odorless, clear, adhesive aqueous with a faintly candied taste, hygroscopic and miscible with water, acetone, and chloroform.
Propylene glycol is a clear, achromatic and hygroscopic liquid. Propylene glycol contains an absurd carbon atom, so it exists in two stereoisomers. The bartering artefact is a racemic mixture. Authentic optical isomers can be acquired by hydration of optically authentic propylene oxide.
The freezing point of baptize is depressed if alloyed with propylene glycol attributable to the furnishings of dissolution of a solute in a bread-and-butter (freezing-point depression); in general, glycols are non-corrosive, accept actual low animation and actual low toxicity (however, ethylene glycol is baneful to bodies and abounding animals).
Monday, January 13, 2014
Information about 2-Amino-6-methylbenzothiazole
English name 2-Amino-6-methylbenzothiazole
Alias 6-Methyl-1 ,3-benzothiazol-2-amine
Product Name 2 - amino-6 - methylbenzothiazole
Formula C8H8N2S
Molecular weight of 164.22
CAS Registry Number 2536-91-6
EINECS No. 219-801-3
More about:2-Amino-6-methylbenzothiazole Price
From:Fluorides
Thursday, January 9, 2014
What is Mucic acid?
Mucic acid is an aldaric acid obtained by nitric acid oxidation of galactose or galactose-containing compounds like lactose, dulcite, quercite, and most varieties of gum.
It forms a crystalline powder, which melts at 230 °C. It is insoluble in alcohol, and nearly insoluble in cold water. Due to the symmetry in the molecule, it is optically inactive even though it has chiral carbon atoms (i.e., it is a meso compound). When heated with pyridine to 140 °C, it is converted into allommic acid. When digested with fuming hydrochloric acid for some time it is converted into a furfural dicarboxylic acid while on heating with barium sulfide it is transformed into athiophene carboxylic acid. The ammonium salt yields on dry distillation carbon dioxide, ammonia, pyrrol and other substances. The acid when fused with caustic alkalis yields oxalic acid.
Wednesday, January 8, 2014
What is erythromycin?
Erythromycin, alias wei toxin; The force of love; New red kang; Foreign names Erythromycin, EM, EMU - V, Eryc, Ethryn, E - Mycin, Gluceptate, Ilotycin, is generated by streptomycin Stretomyceserythreus, is a kind of alkaline antibiotics. The free base for oral use, lactose acid salt for injection. In addition, there are the succinic acid ethyl ester (Hu b erythromycin), propionate lauryl sulfate (relying on erythromycin) for medicinal. Erythromycin is white or kind of white crystal or powder; Odorless, bitter taste; Micro is wet. Easily dissolved in methanol, ethanol or acetone, slightly dissolve in the water.
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Monday, January 6, 2014
Information about The non selectivity reductive (NSCR) NOx catalyst RN-210
Nitrogen oxides is only composed of two elements nitrogen, oxygen compounds. Nitrogen oxides as air pollutants is the floorboard of NO and NO2, with NOx said. NOx is one of the main atmospheric pollutants, directly or indirectly related to the atmospheric environmental problems, such as photochemical smog, acid precipitation, stratospheric ozone depletion and global climate change. In addition, the increased amount of nitrogen deposition can lead to the eutrophication of surface water and on land, wetlands, underground drainage acidification and poison, cause damage to terrestrial and aquatic ecosystems, eventually harmful to human health and ecological environment security.
Nitric oxide as a pollutant, itself can cause harm to human body health, it can stimulate people's eyes, nose, throat, and lungs, easy to cause the respiratory system disease, such as cause bronchitis and pneumonia caused by influenza, induced lung cancer; For children, nitrogen oxides may cause damage to the lung development.
Nitrogen also produces a variety of secondary pollution. It is one of the important material to generate ozone, closely related to the ozone concentration and light chemical pollution. Ozone will stimulate the eyes and respiratory tract, and lead to damage of agricultural production, cultural relics and so on. Due to ozone formation and material is easy to transport, diffusion in the atmosphere, the photochemical smog often become a regional problem, the coverage can reach more than dozens or even hundreds of kilometers, and the ozone concentration in suburban and rural areas are often higher than the city.
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From:Chemical Catalysts
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