1,4-Diamino-2-nitrobenzene Property

Melting point:

135-138 °C (lit.)

Boiling point:

276.04°C (rough estimate)

Density 

1.3682 (rough estimate)

refractive index 

1.6500 (estimate)

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

solubility 

0.2g/l

form 

Powder

pka

4.36±0.10(Predicted)

color 

Brown to black

PH

7 (H2O)(aqueous suspension)

Water Solubility 

<0.1 g/100 mL at 22 ºC

BRN 

2210195

Stability:

Stable. Incompatible with strong oxidizing agents.

InChIKey

HVHNMNGARPCGGD-UHFFFAOYSA-N

LogP

0.53

CAS DataBase Reference

5307-14-2(CAS DataBase Reference)

NIST Chemistry Reference

1,4-Benzenediamine, 2-nitro-(5307-14-2)

IARC

3 (Vol. Sup 7, 57) 1993

EPA Substance Registry System

2-Nitro-p-phenylenediamine (5307-14-2)

Safety

Hazard Codes 

Xi,Xn

Risk Statements 

43-68

Safety Statements 

36/37-45

RIDADR 

3143

WGK Germany 

2

RTECS 

ST3000000

TSCA 

Yes

HS Code 

29215119

Hazardous Substances Data

5307-14-2(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

1,4-Diamino-2-nitrobenzene Chemical Properties,Usage,Production

Description

o-Nitro-paraphenylenediamine (ONPD) is a hair dye and a sensitizer in hairdressers.

Chemical Properties

Dark red crystal Powder

Uses

This compound is used in hair and fur dyes.

Uses

2-Nitro-4-phenylene-diamine is a dyestuff used to dye furs brown and reddish-brown; dye intermediate in semi-permanent and permanent hair coloring products (produces brown and red shades on the hair); in different hair-dyeing preparations.

Definition

ChEBI: A primary amino compound that is p-phenylenediamine in which one of the hydrogens attached to the benzene ring is replaced by a nitro group. It is a cosmetic hair dye intermediate that is used in permanent hair colouring products (diluted 1:1 ith an oxidising agent prior to application).

General Description

Almost black needles with dark-green luster or black powder.

Air & Water Reactions

1,4-Diamino-2-nitrobenzene may be sensitive to prolonged exposure to light and air. Insoluble in water.

Reactivity Profile

1,4-Diamino-2-nitrobenzene is incompatible with strong oxidizing agents.

Fire Hazard

Flash point data for 1,4-Diamino-2-nitrobenzene are not available; however, 1,4-Diamino-2-nitrobenzene is probably combustible.

Flammability and Explosibility

Non flammable

Contact allergens

ONPD is a hair dye and a sensitizer in hairdressers and consumers who are generally sensitive to PPD too.

Safety Profile

Suspected carcinogen with experimental carcinogenic and neoplastigenic data. Poison by intraperitoneal route. Moderately toxic by ingestion. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx,.