IPCS INCHEM Home
PHENOTHIAZINE
ICSC: 0937
Peer-Review Status: 02.04.2009 Validated
Dibenzothiazine
Thiodiphenylamine
Dibenzo-1,4-thiazine 
CAS #: 92-84-2 RTECS #: SN5075000
EINECS #: 202-196-5
    Formula: C12H9NS
Molecular mass: 199.3

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use powder, water spray, foam, carbon dioxide. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation   Avoid inhalation of dust.  Fresh air, rest. 
Skin Severe itching. Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention if skin irritation occurs. 
Eyes   Wear safety spectacles or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Abdominal cramps.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Seek medical attention if you feel unwell. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.   
EC Classification
 
UN Classification
 
GHS Classification
Signal: Warning
May be harmful if swallowed
Causes mild skin irritation
Toxic to aquatic life
Very toxic to aquatic life with long lasting effects 
enviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants and strong acids. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
YELLOW CRYSTALS. TURNS DARK GREEN ON EXPOSURE TO LIGHT. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating and on contact with strong acids. This produces toxic and irritating fumes including nitrogen oxides and sulfur oxides. Reacts violently with strong oxidants. This generates fire hazard. 

Occupational exposure limits
TLV: 5mg/m³ as TWA; (skin); (ACGIH 2009).
MAK (2b (not established but data is available)): (DFG 2009). 

Routes of exposure
The substance can be absorbed into the body by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance is mildly irritating to the skin. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged exposure may cause skin photosensitization. The substance when ingested may have effects on the blood and nervous system. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 371°C
Melting point: 185.1°C
Density: 1.34 g/cm³
Solubility in water: none
Flash point: 202°C
Auto-ignition temperature: 471°C
Octanol/water partition coefficient as log Pow: 4.15  
The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations