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2-Nitroaniline

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2-Nitroaniline

EINECS 201-855-4
CAS No. 88-74-4 Density 1.333 g/cm3
Solubility 1.1 g/L (20 °C) in water Melting Point 70-73 °C(lit.)
Formula C6H6N2O2 Boiling Point 284.9 °C at 760 mmHg
Molecular Weight 138.14 Flash Point 126.1 °C
Transport Information UN 1661 6.1/PG 2 Appearance orange solid
Safety 28-36/37-45-61-28A-16-7 Risk Codes 23/24/25-33-52/53-39/23/24/25-11
Molecular Structure Molecular Structure of 88-74-4 (2-Nitroaniline) Hazard Symbols ToxicT, FlammableF
Synonyms

Aniline,o-nitro- (8CI);1-Amino-2-nitrobenzene;1-Nitro-2-aminobenzene;2-Aminonitrobenzene;2-Nitrobenzenamine;2-Nitrophenylamine;Azoene Fast Orange GR Base;Azoene Fast Orange GR Salt;Azofix Orange GR Salt;Azogene Fast Orange GR;Brentamine Fast Orange GR Base;Brentamine Fast OrangeGR Salt;Devol Orange B;Devol Orange Salt B;Fast Orange Base JR;Fast OrangeGR Base;Fast Orange O Base;Fast Orange O Salt;Fast Orange Salt JR;HiltonilFast Orange GR Base;o-Nitroaniline;Hindasol Orange GR Salt;NSC9796;Natasol Fast Orange GR Salt;ONA;Orange Base Ciba II;Orange Base IrgaII;Orange GRS Salt;Orange Salt Ciba II;Orange Salt Irga II;o-Aminonitrobenzene;o-Nitrobenzenamine;o-Nitrophenylamine;

 

2-Nitroaniline Chemical Properties

IUPAC Name: 2-Nitroaniline
Synonyms of o-Nitroaniline (CAS NO.88-74-4): Aniline, o-nitro- ; Benzenamine, 2-nitro- ; o-Nitroaniline ; UN1661 ; o-Nitroaniline [UN1661] [Poison]
CAS NO: 88-74-4
Classification Code: Mutation data
Molecular Formula: C6H6N2O2
Molecular Weight: 138.124
Molecular Structure:

Melting Point: 70-73 °C
Polar Surface Area: 71.84 Å2
Index of Refraction: 1.634
Molar Refractivity: 37.03 cm3
Molar Volume: 103.5 cm3
Surface Tension: 60.3 dyne/cm
Density: 1.333 g/cm3
Flash Point: 126.1 °C
Enthalpy of Vaporization: 52.4 kJ/mol
Boiling Point: 284.9 °C at 760 mmHg
Vapour Pressure: 0.00289 mmHg at 25°C

2-Nitroaniline Uses

  o-Nitroaniline (CAS NO.88-74-4) is rubber antioxidant MB, pesticides carbendazim, light stabilizer UV-P intermediates.It can be used as the goods azoic dyes for color-based (orange-GC), and other dye intermediates, can be used to hand Cotton fabric dyeing, the system could Color Yield amylin.

2-Nitroaniline Production

Adding ortho-nitrochlorobenzene into the filled with a certain concentration of ammonia Autoclave at 185-190 °C, 4-4.5 MPa for ammonia solution, o-nitroaniline crude via cooling and crystallization, filtration, derived products.

2-Nitroaniline Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
bird - wild LD50 oral 750mg/kg (750mg/kg)   Archives of Environmental Contamination and Toxicology. Vol. 12, Pg. 355, 1983.
guinea pig LD50 oral 2350mg/kg (2350mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Voprosy Kommunal'noi Gigieny. Problems of Communal Hygiene. Vol. 6, Pg. 89, 1966.
mammal (species unspecified) LD50 unreported 9441mg/kg (9441mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(6), Pg. 22, 1983.
mouse LD50 oral 1070mg/kg (1070mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 25(8), Pg. 50, 1981.
quail LD50 oral 750mg/kg (750mg/kg)   Archives of Environmental Contamination and Toxicology. Vol. 12, Pg. 355, 1983.
rat LC50 inhalation > 2529mg/m3/4H (2529mg/m3) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION National Technical Information Service. Vol. OTS0558766,
rat LD50 oral 1600mg/kg (1600mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Voprosy Kommunal'noi Gigieny. Problems of Communal Hygiene. Vol. 6, Pg. 89, 1966.
rat LDLo intraperitoneal 800mg/kg (800mg/kg)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 91, 1982.

2-Nitroaniline Consensus Reports

Reported in EPA TSCA Inventory.

2-Nitroaniline Safety Profile

Hazard Symbols of o-Nitroaniline (CAS NO.88-74-4): ToxicT  
Risk Codes: 23/24/25-33-52/53-39-11
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
R33:Danger of cumulative effects.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R39:Danger of very serious irreversible effects.
R11:Highly flammable.
Safety Description: S28;S36/37;S45;S61 
S28: After contact with skin, wash immediately with plenty of soap-suds.
S36/37: Wear suitable protective clothing and gloves. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
Transport Information: UN 1661
A poison. Moderately toxic by ingestion. Mildly toxic by skin contact. Mutation data reported. Mixtures with magnesium are hypergolic on contact with nitric acid. Forms extremely explosive addition compounds with hexanitroethane. Vigorous reaction with sulfuric acid above 200°C. When heated to decomposition it emits toxic fumes of NOx. See also m-NITROANILINE, p-NITROANILINE, and ANILINE DYES.

2-Nitroaniline Standards and Recommendations

DOT Classification:  6.1; Label: Poison

2-Nitroaniline Specification

Handling: Do not get in eyes, on skin, or on clothing. Do not breathe vapor. Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only with adequate ventilation or respiratory protection.
Storage: Store protected from light. Store in a cool, dry, well-ventilated area away from incompatible substances. Store in a tightly closed container.

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