2-Mercaptopyridine N-oxide sodium salt , 40%water solution , 3811-73-2

Synonym(s):
1-Hydroxy-2-pyridinethione sodium salt;2-Mercaptopyridine-1-oxide sodium salt;2-Pyridinethiol-1-oxide sodium salt;Pyrithione sodium salt

CAS NO.：3811-73-2

Empirical Formula: C5H6NNaOS

Molecular Weight: 151.16

MDL number: MFCD01941547

EINECS: 223-296-5

PRODUCT Properties

• Melting point: -25 °C
• Boiling point: 109 °C
• Density: 1.22
• vapor pressure: 0-0Pa at 25℃
• refractive index: 1.4825
• storage temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
• solubility: H₂O: 0.1 M at 20 °C, clear, faintly yellow
• form: Solution
• color: very deep brown
• Water Solubility: 54.7 g/100 mL
• Sensitive: Hygroscopic
• λmax: 334nm(H2O)(lit.)
• Merck: 14,7994
• BRN: 4026050
• InChIKey: WNGMMIYXPIAYOB-UHFFFAOYSA-M
• LogP: -2.38 at 20℃ and pH7
• Surface tension: 65.013-72.6mN/m at 1-1.02g/L and 20-20.1℃
• CAS DataBase Reference: 3811-73-2(CAS DataBase Reference)
• EPA Substance Registry System: Sodium (2-pyridylthio)-N-oxide (3811-73-2)

Description and Uses

Sodium pyrithione is mainly used for anti-mildew and antibacterial products in the fields of daily chemicals (shampoo and hair care products), architectural coatings, adhesives, sealants, pesticides, textiles, leather products, metal working fluids, etc. It can also be formulated for disinfection agents, detergents and medical broad-spectrum antifungal dermatological products. At the same time, it is also an effective fungicide and an excellent common disinfectant for fruit trees, peanuts, wheat, vegetables and other crops. Its derivative product, zinc pyrithione, is also a commonly used fungicide for daily chemicals.

sodium pyrithione is a preservative that is not commonly used because of some level of toxicity. It is prohibited in Canada, and it is on the eu Annex II list of substances that must not form part of a cosmetic product composition.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338
• Hazard Codes: Xn,Xi
• Risk Statements: 22-36/37/38-36/38
• Safety Statements: 26-36-24/25-37/39
• RIDADR: UN 3334
• WGK Germany: 3
• RTECS: UT9000000
• F: 3-13
• TSCA: Yes
• HS Code: 29333990