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624-18-0

624-18-0 structural image
Product Name: p-Phenylenediamine dihydrochloride
Formula: C6H10Cl2N2
Synonyms: 1,4-Benzenediamine dihydrochloride;1,4-Phenylenediamine dihydrochloride;1,4-Phenylenediammonium dichloride
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description 1,4-phenylenediamine dihydrochloride appears as white to slightly reddish crystals or gray powder. (NTP, 1992)
Color/Form WHITE TO SLIGHTLY REDDISH CRYSTALS
Melting Point greater than 392 °F (NTP, 1992)
Solubility greater than or equal to 100 mg/mL at 70 °F (NTP, 1992)
Vapor Density Relative vapor density (air = 1): 6.2
Decomposition When heated to decomposition it emits very toxic fumes of nitrogen oxides and HCl.
Dissociation Constants pKa = 6.2 /free base/ (conjugate acid)
Chemical Classes Nitrogen Compounds -> Amines, Aromatic

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Skull and Crossbones
Acute Toxicity
GHS06

Environment
GHS09
GHS Hazard Statements H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

COMPUTED DESCRIPTORS

Molecular Weight 181.06 g/mol
Hydrogen Bond Donor Count 4
Hydrogen Bond Acceptor Count 2
Rotatable Bond Count 0
Exact Mass 180.0221037 g/mol
Monoisotopic Mass 180.0221037 g/mol
Topological Polar Surface Area 52 Ų
Heavy Atom Count 10
Formal Charge 0
Complexity 54.9
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 3
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

1,4-phenylenediamine dihydrochloride appears as white to slightly reddish crystals or gray powder. (NTP, 1992)

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