3,5-Xylidine

  • 3,5-Dimethylaniline
  • 3,5-Dimethylbenzenamine
Formula
C8H11N
Structure
Description
Dark brown liquid.
Uses
Used as a chemical intermediate for the synthesis of pigment red 149.

Registry Numbers and Inventories.
CAS
108-69-0
EC (EINECS/ELINCS)
203-607-0
R 23/24/25 33 51/53
S 28 36/37 45 61
RTECS
ZE9625000
RTECS class
Mutagen
UN (DOT)
1711
Merck
12,10217
Beilstein/Gmelin
507051
Beilstein Reference
4-12-00-02561
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H11N
Formula mass
121.20
Melting point, °C
9.8
Boiling point, °C
220
Odor Threshold Odor threshold 0.0240 mg/m3
Critical temperature
452
Critical pressure
37.3
Density
0.9706 g/cm3 (20 C)
Solubility in water
Slightly soluble
Surface tension
36.38 g/s2 (25 C)
Refractive index
1.5581 (20 C)
pKa/pKb
9.21 (pKb)
Partition coefficient, pKow
2.21

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. 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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, acids, acid chlorides, halogens, acid anhydrides, hypochlorite, chloroformates.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
93
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible Liquid. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam. Do NOT get water inside containers.
Fire potential
This chemical is combustible.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure effects
Effects may be delayed.
   Ingestion
Harmful if swallowed. Ingestion of nitrate containing compounds can lead to methemoglobinemia. May cause irritation of the digestive tract and possible burns.
   Inhalation
May cause severe respiratory tract irritation and possible burns.
   Skin
May cause severe skin irritation with possible burns, especially if skin is wet or moist.
   Eyes
May cause eye irritation and possible burns.

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
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1711
Response guide
Hazard class
6.1
Packing Group
II
 
9. Aromatic amines