Pyridine 99,5% AR 250 mL

SKU : B-3067.0250

CAS : 110-86-1

Formula : C5H5N

Grade : Analytical Reagent

The main use of pyridine is as a precursor to the herbicides paraquat and diquat. The first synthesis step of insecticide chlorpyrifos consists of the chlorination of pyridine. Pyridine is also the starting compound for the preparation of pyrithione-based fungicides.Cetylpyridinium and laurylpyridinium, which can be produced from pyridine with a Zincke reaction, are used as antiseptic in oral and dental care products.

As a base, pyridine can be used as the Karl Fischer reagent, but it is usually replaced by alternatives with a more pleasant odor, such as imidazole.

Pyridine is used as a polar, basic, low-reactive solvent, for example in Knoevenagel condensations. It is especially suitable for the dehalogenation, where it acts as the base for the elimination reaction. In esterifications and acylations, pyridine activates the carboxylic acid chlorides and anhydrides

Pyridine is a basic heterocyclic organic compound with the chemical formula C₅H₅N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom (=N−). It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Pyridine is colorless, but older or impure samples can appear yellow, due to the formation of extended, unsaturated polymeric chains, which show significant electrical conductivity. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. As of 2016, it is synthesized on the scale of about 20,000 tons per year worldwide.

TINDAKAN PENCEGAHAN UNTUK PENANGANAN YANG AMAN

a. Saran tentang penanganan yang aman

Kenakan pakaian pelindung. Jangan menghirup zat/campuran. Hindari terbentuknya uap/aerosol.

b. Saran tentang perlindungan terhadap kebakaran dan ledakan

Jauhkan dari nyala terbuka, permukaan panas, dan sumber penyulut.Lakukan dengan hatihati tindakan melawan lucutan statis

c. Tindakan kebersihan

Segera ganti pakaian yang terkontaminasi. Gunakan krim pelindung kulit. Cuci tangan dan muka setelah bekerja dengan bahan tersebut. Untuk tindakan pencegahan lihat bagian 2.2.

KONDISI PENYIMPANAN YANG AMAN, TERMASUK KETIDAKCOCOKAN

a. Kondisi penyimpanan

Simpan wadah tertutup rapat di tempat yang kering dan berventilasi baik. Jauhkan dari panas dan sumber api.

Suhu penyimpanan :

Rekomendasi suhu penyimpanan lihat pada label

b. Kelas penyimpanan

Kelas penyimpanan Jerman (TRGS 510): 3: Cairan mudah terbakar