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p-(METHYLAMINO)PHENOL SULFATEICSC: 1528
bis(4-Hydroxy-N-methylanilinium) sulfate
Metol
4-(Methylamino)phenol sulfate
April 2004
CAS #: 55-55-0
UN #: 3077
EC Number: 200-237-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use water spray, powder, alcohol-resistant foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 9; UN Pack Group: III 

STORAGE
Separated from incompatible materials. See Chemical Dangers. 
PACKAGING
 
p-(METHYLAMINO)PHENOL SULFATE ICSC: 1528
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Decomposes on heating. This produces toxic fumes including nitrogen oxides and sulfur oxides. Reacts with acids, acid anhydrides, acid chlorides and oxidants. 

Formula: (C7H9NO)2.H2SO4
Molecular mass: 344.4
Decomposes at 260°C
Solubility in water, g/100ml at 15°C: 4.7
Auto-ignition temperature: 531°C  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract. The substance is mildly irritating to the skin. 

Inhalation risk
No indication can be given whether a harmful concentration in the air will be reached. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the blood. This may result in lesions of blood cells. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
The substance is very toxic to aquatic organisms. 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn, N; R: 22-43-48/22-50/53; S: (2)-36/37-46-60-61 

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    See Also:
       Toxicological Abbreviations