Home Categories Organic Chemistry o-Nitrotoluene
A6156012

o-Nitrotoluene , Analysis standard , 88-72-2

Synonym(s):
1-Methyl-2-nitrobenzene;2-Nitrotoluene;o-Nitrotoluene

CAS NO.:88-72-2

Empirical Formula: C7H7NO2

Molecular Weight: 137.14

MDL number: MFCD00007157

EINECS: 201-853-3

Update time: 2022-07-08

PRODUCT Properties

Melting point: -9 °C
Boiling point: 225 °C(lit.)
Density  1.163 g/mL at 25 °C(lit.)
vapor density  4.72
vapor pressure  0.1 hPa (20 °C)
refractive index  n20/D 1.546(lit.)
Flash point: 223 °F
storage temp.  Store below +30°C.
solubility  0.65g/l (experimental)
form  Liquid
color  Clear yellow to yellow-green
Specific Gravity 1.16
PH 6-8 (H2O)
explosive limit 1.47-8.8%(V)
Water Solubility  0.44 g/L (20 ºC)
Merck  14,6650
BRN  1907580
Henry's Law Constant 1.25 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999)
Exposure limits NIOSH REL: TWA 2 ppm (11 mg/m3), IDLH 200 ppm; OSHA PEL: TWA 5 ppm (30 mg/m3); ACGIH TLV: TWA 2 ppm (adopted).
Dielectric constant 27.399999999999999
Stability: Stable. Combustible. Incompatible with oxidizing agents, strong bases, sulfuric acid, reducing agents, hydrogen, sodium.
InChIKey PLAZTCDQAHEYBI-UHFFFAOYSA-N

Description and Uses

2-Nitrotoluene is a light yellow to darker yellow-green liquid. It is used for the synthesis of a variety of industrial products. These include to synthesise agricultural and rubber chemicals, azo and sulphur dyes, and dyes for cotton, wool, silk, leather, and paper. O-nitrotoluene decomposes on contact with strong oxidants, reducing agents, acids, or bases producing toxic fumes, nitrogen oxides, and carbon monoxide.

2-Nitrotoluene is used as an intermediate for the o-toludine synthesis, which finds application in the dyestuff industry. It is employed as a reagent in detecting and photometric determining oxidizing agent. It is also used in the determination of prussic acid content in the air. It acts as a precursor to prepare 2-amino-4-chlorotoluene, 2-amino-6-chlorotoluene, nitrotoluenesulfonic acids and toluene nitrosulfonic chlorides. It acts as a nitrogen supplement in the culture medium of pseudomonas sp. strain ClS1. It acts as a carbon and energy supplement in the culture medium of Pseudomonas sp. strain JS42.

Safety

Symbol(GHS) 
GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H302-H340-H350-H361f-H411
Precautionary statements  P202-P264-P270-P273-P301+P312-P308+P313
Hazard Codes  T,N,F
Risk Statements  45-46-22-51/53-62-36/37/38-23/24/25-11-36-20/21/22
Safety Statements  53-45-61-27-16-36/37-26
OEB A
OEL TWA: 2 ppm (11 mg/m3) [skin]
RIDADR  UN 1664 6.1/PG 2
WGK Germany  3
RTECS  XT3150000
Autoignition Temperature 420 °C
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29042000
Toxicity LD50 orally in Rabbit: 891 mg/kg
IDLA 200 ppm

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