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Home » Products » Biocide Chemical » Industrial Antiseptic Agent Preservative Chemical Sodium Pyrithione 40% CAS 3811-73-2 SPT


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Industrial Antiseptic Agent Preservative Chemical Sodium Pyrithione 40% CAS 3811-73-2 SPT

Sodium Pyrithione, also known as sodium pyrithione, sodium omadine, pyrithione net, belongs to the pyridine derivatives fungicide, the appearance of yellow completely light reed color transparent liquid, melting point 250℃, slightly characteristic smell. Easily soluble in water and ethanol and other organic solvents. It is not stable to light, oxidants and strong reducing agents. It is slightly inactivated by non-ionic surfactants and chelates with heavy metals. Main application fields include: daily chemical products, adhesives, papermaking, pharmaceuticals, pesticides, leather products, disinfection supplies, etc
  • SPT 40%

  • Sinobio

  • 29333990

Sinobio Sodium Pyrithione SPT 40%

CAS No.: 3811-73-2

Formula: C5h6nnaos

EINECS: 223-296-5

Acid-Base Property: Neutral Surface Disposal Agent

Sodium Pyrithione is pure white or white powder, soluble in water and ethanol and other organic solvents. The general configuration of 40% liquid agent, light yellow to yellow brown transparent liquid, easy to dissolve in water. The holding effect decreased under acidic conditions and stabilized under alkaline or neutral conditions.

package  package

Basic Information

Chemical Name Sodium Pyrithione/SPT CAS No. 3811-73-2
C5H6NNaOS MW: 151.16
EINECS 223-296-5 Structural Formula SPT
Melting point -25 °C Boiling Point 109 °C
Density 1.22 Appearance Liquid
Color Light yellow

Water solubility

54.7 g/100 mL


1. Can be used in metal cutting fluid, antirust liquid, latex paint, adhesive, leather products, textile products, copper paper and other fields. 

2. In the pharmaceutical and chemical industry used in a variety of anti-fungal drugs and shampoo and skin care products, it not only prevents the product of spoilage mildew Chemicalbook, but also can relieve itching and dandruffle, very effective. 

3. It can be used as an effective fungicide for fruit trees, peanuts, wheat, vegetables and other crops, and is also an excellent disinfectant for silkworms. 

4. It can prepare disinfectants, detergents and medical broad-spectrum antifungal dermatological drugs and other products.



Packing & Storage

1,200kg/drum, 21.6mt=1*20FCL

Sealed in dry, room temperature. Shelf life is 2 years.

SPT-4  SPT-2

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