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121-69-7

Name N,N-Dimethylaniline
CAS 121-69-7
EINECS(EC#) 204-493-5
Molecular Formula C8H11N
MDL Number MFCD00008304
Molecular Weight 121.18
MOL File 121-69-7.mol

Chemical Properties

Appearance liquid
Melting point  1.5-2.5 °C (lit.)
Boiling point  193-194 °C (lit.)
density  0.956 g/mL at 20 °C
vapor density  3 (vs air)
vapor pressure  2 mm Hg ( 25 °C)
refractive index  n20/D 1.557(lit.)
Fp  158 °F
storage temp.  0-6°C
solubility  1.2g/l
form  Liquid
pka 5.15(at 25℃)
color  Clear yellow
PH 7.4 (1.2g/l, H2O, 20℃)
Relative polarity 0.179
Stability: Stable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, acid anhydrides, chloroformates, halogens. Combustible.
explosive limit 1.2-7%(V)
Water Solubility  1 g/L (20 ºC)
Merck  14,3234
BRN  507140
Henry's Law Constant 4.98(x 10-6 atm?m3/mol) at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits NIOSH REL: TWA 5 ppm (25 mg/m3), STEL 10 ppm (50 mg/m3), IDLH 100 ppm; OSHA PEL: TWA 5 ppm; ACGIH TLV: TWA 5 ppm, STEL 10 ppm (adopted).
InChIKey JLTDJTHDQAWBAV-UHFFFAOYSA-N
CAS DataBase Reference 121-69-7(CAS DataBase Reference)
IARC 3 (Vol. 57) 1993
NIST Chemistry Reference Benzenamine, N,N-dimethyl-(121-69-7)
EPA Substance Registry System 121-69-7(EPA Substance)

Safety Data

Hazard Codes  T,N
Risk Statements 
R61:May cause harm to the unborn child.
R20/21:Harmful by inhalation and in contact with skin .
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R40:Limited evidence of a carcinogenic effect.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
Safety Statements 
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
RIDADR  UN 2253 6.1/PG 2
WGK Germany  3
RTECS  BX4725000
8
Autoignition Temperature 370 °C DIN 51794
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29214200
Safety Profile
Suspected carcinogen with equivocal tumorigenic data. Human poison by ingestion. Moderately toxic by inhalation and skin contact. A skin irritant. Human systemic effects by ingestion: nausea or vomiting. Physiological action is similar to, but less toxic than, adne. A central nervous system depressant. Mutation data reported. Flammable liquid when exposed to heat, flame, or oxidizers. Explodes on contact with benzoyl peroxide or disopropyl peroxydicarbonate. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits htghly toxic fumes of adne and NOx. See also ANILINE.
Hazardous Substances Data 121-69-7(Hazardous Substances Data)
Toxicity
LD50 orally in rats: 1.41 ml/kg (Smyth)
IDLA 100 ppm

Hazard Information

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