Pyrithione zinc

  • Bis(1-hydroxy-2-(1h)-pyridinethionato)zinc
  • Bis(2-pyridinethiol-1-oxide)zinc
  • Bis(2-pyridylthio)zinc 1,1'-dioxide
  • 2-Mercaptopyridine 1-oxide, zinc salt
  • Zinc 2-pyridinethiol-1-oxide
  • Omadine zinc
Formula
C10H8N2O2S2Zn
Structure
Description
Fine beige granules.
Uses
Microbiocide

Registry Numbers and Inventories.
CAS
13463-41-7
EC (EINECS/ELINCS)
236-671-3
RTECS
ZH0950000
RTECS class
Reproductive Effector; Primary Irritant
Beilstein/Gmelin
NA
EPA OPP
88003
Swiss Giftliste 1
G-4051
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H8N2O2S2Zn
Formula mass
317.68
Melting point, °C
262
Density
1.782 g/cm3 (25 C)

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.
Small spills/leaks
STORAGE PRECAUTIONS: You should store this material in a refrigerator.
Stability
Stable @ 100 C for 120 hr.
Incompatibilities
Incompatible with acids and bases Incompatible with oxidizing agents.

Fire.
Fire fighting
Fires involving this compound should be controlled with a dry chemical, carbon dioxide or Halon extinguisher.

Health.
Poison_Class
3
Exposure effects
hypernatremia may produce irritability, restlessness, and seizures.
   Ingestion
Nausea, vomiting, and diarrhea are expected, but no serious caustic effects are anticipated. Blood levels are not necessary or useful for either the zinc compounds or detergents. Sodium levels may be necessary following large ingestions, in which vomiting has not occurred.
   Inhalation
Skin and eye irritation.
   Skin
See inhalation.
   Eyes
See inhalation

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.