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2,5-XYLIDINE ICSC: 1686
Date of Peer Review: April 2007

2,5-Dimethylaniline
2,5-Dimethylbenzeneamine
1-Amino-2,5-dimethylbenzene
2-Amino-1,4-dimethylbenzene
2-Amino-p-xylene
2-Amino-1,4-xylene
CAS # 95-78-3 C8H11N / (CH3)2C6H3NH2
RTECS # ZE9100000 Molecular mass: 121.2
UN # 1711
EC Annex 1 Index # 612-027-00-0
EC/EINECS # 202-451-0
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.
Water spray, carbon dioxide, foam, powder.
EXPLOSION Above 93°C explosive vapour/air mixtures may be formed.
Above 93°C use a closed system, ventilation.

EXPOSURE
STRICT HYGIENE!

Inhalation Dizziness. Drowsiness. Headache. Nausea.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin MAY BE ABSORBED! (See Ingestion)
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes
Safety spectacles or eye protection in combination with breathing protection.
Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion Blue lips or fingernails. Blue skin. Dizziness. Drowsiness. Headache. Nausea. Unconsciousness.
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Chemical protection suit. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Do not transport with food and feedstuffs. Note: C
EU Classification
Symbol: T, N
R: 23/24/25-33-51/53
S: (1/2-)28-36/37-45-61
UN Classification
UN Hazard Class: 6.1
UN Pack Group: II
GHS Classification
Warning
Harmful if swallowed
May cause drowsiness or dizziness
May cause damage to blood
May cause damage to blood and liver through prolonged or repeated exposure
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61S1711-L
NFPA Code: H3; F1; R0
Separated from strong oxidants, acids, acid anhydrides, acid chlorides, hypochlorites, halogens, food and feedstuffs. Well closed.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
2,5-XYLIDINE ICSC: 1686
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
CLEAR, PALE YELLOW TO ORANGE LIQUID , WITH CHARACTERISTIC ODOUR. TURNS REDDISH TO BROWN ON EXPOSURE TO AIR.

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and corrosive fumes including nitrogen oxides. Reacts violently with strong oxidants. Reacts with hypochlorites forming explosive chloroamines. Reacts with acids, acid anhydrides, acid chloridesand halogens. Attacks plastic and rubber.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established. See Notes.
MAK: Skin absorption (H); Carcinogen category: 3A; (DFG 2006).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body in hazardous amounts by inhalation, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air will be reached slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
Exposure at high levels could cause lowering of consciousness. Exposure at high levels may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the blood , resulting in anaemia. The substance may have effects on the liver.
PHYSICAL PROPERTIES
Boiling point: 218°C
Melting point: 15.5°C
Relative density (water = 1): 0.98
Solubility in water, g/100 ml at 18°C: 0.5
Vapour pressure, kPa at 96°C: 1.3
Relative vapour density (air = 1): 4.19
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 93°C
Auto-ignition temperature: 520°C
Octanol/water partition coefficient as log Pow: 1.83
ENVIRONMENTAL DATA
This substance may be hazardous in the environment; special attention should be given to aquatic organisms.
NOTES
Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. TLV only established for mixed isomers, see ICSC 0600. See also ICSC 0600 (Xylidine, mixed isomers), 1519 (2,6-Xylidine), 0451 (2,3-Xylidine), 0453 (3,4-Xylidine), 1562 (2,4-Xylidine), 1687 (3,5-Xylidine).
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
© IPCS, CEC 2005
    See Also:
       Toxicological Abbreviations