Sudan I

  • Solvent Yellow 14
  • 1-Phenylazo-2-naphthol
  • Morton Orange Y
  • Waxoline Yellow IS
  • C.I. 12055
  • 1-(Phenylazo)-2-hydroxynaphthalene
Formula
C16H12N2O
Structure
Description
Dark reddish-yellow leaflets or orange powder. Slight odor.
Uses
Dye for hydrocarbon solvents, oils, fats, waxes, shoe & floor polishes, gasoline, soap, colored smokes, cellulose ether varnishes, & styrene resins.

Registry Numbers and Inventories.
CAS
842-07-9
EC (EINECS/ELINCS)
212-668-2
EC Index Number
611-056-00-6
EC Class
Carcinogenic Category 3; Mutagenic Category 3; Sensitising; Dangerous for the Environment
RTECS
QL4900000
RTECS class
Tumorigen; Mutagen
Beilstein/Gmelin
651992
Beilstein Reference
4-16-00-00228
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C16H12N2O
Formula mass
248.30
Melting point, °C
135
Boiling point, °C
444
Vapor pressure, mmHg
2E-8 (25 C)
Density
1.119 g/cm3 (151 C)
Solubility in water
Insoluble
Surface tension
33.41 g/s2 (188 C)
pKa/pKb
13.50 pKa
Partition coefficient, pKow
4.24
Heat of vaporization
72.8 kJ/mol
Heat of combustion
-8263 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
290
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
This material is probably combustible.

Health.
Carcinogin
CP65
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
The toxicological properties of this substance have not been fully investigated. Inhalation of dust may cause respiratory tract irritation.
   Skin
May cause skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.