Diphenylamine

ChemicalBook > CAS DataBase List > Diphenylamine

Product Name: Diphenylamine
CAS No.: 122-39-4
Chemical Name: Diphenylamine
Synonyms: DPA;DFA;N-PHENYLANILINE;Diphenylamin;Diphenylaniline;Diphenylamine, synthesis grade;Z-876;OA-505;CORAZA;ci10355
CBNumber: CB7852949
Molecular Formula: C12H11N
Formula Weight: 169.22
MOL File: 122-39-4.mol

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Diphenylamine Property

Melting point:: 52 °C
Boiling point:: 302 °C(lit.)
Density: 1.16
vapor density: 5.82 (vs air)
vapor pressure: 1 mm Hg ( 108 °C)
refractive index: 1.5785 (estimate)
Flash point:: 307 °F
storage temp.: Store below +30°C.
solubility: alcohol: passes test
form: crystalline
pka: 0.79(at 25℃)
color: tan
Odor: Floral odor
Water Solubility: Slightly soluble. 0.03 g/100 mL
Sensitive: Air & Light Sensitive
Merck: 14,3317
BRN: 508755
Exposure limits: TLV-TWA 10 mg/m³ (ACGIH and MSHA).
Dielectric constant: 3.3（11℃）
Stability:: Stable; may discolour on exposure to light. Incompatible with strong acids, strong oxidizing agents.
LogP: 3.82 at 20.2℃
CAS DataBase Reference: 122-39-4(CAS DataBase Reference)
NIST Chemistry Reference: Diphenylamine(122-39-4)
EPA Substance Registry System: Diphenylamine (122-39-4)

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Safety

Hazard Codes: T,N,F
Risk Statements: 23/24/25-33-50/53-52/53-39/23/24/25-11-51/53
Safety Statements: 28-36/37-45-60-61-28A-16-7
RIDADR: UN 3077 9/PG 3
WGK Germany: 3
RTECS: JJ7800000
F: 8-10-23
Autoignition Temperature: 630 °C DIN 51794
TSCA: Yes
HS Code: 2921 44 00
HazardClass: 6.1
PackingGroup: III
Hazardous Substances Data: 122-39-4(Hazardous Substances Data)
Toxicity: LD50 orally in Rabbit: 1120 mg/kg LD50 dermal Rabbit > 5000 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

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

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P314Get medical advice/attention if you feel unwell.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.20528
Product name: Diphenylamine
Purity: for synthesis
Packaging: 100g
Price: $80.1
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.20528
Product name: Diphenylamine
Purity: for synthesis
Packaging: 1kg
Price: $94.2
Updated: 2024/03/01

Sigma-Aldrich

Product number: CRM69121
Product name: Diphenylamine
Purity: certified reference material, TraceCERT?
Packaging: 100MG
Price: $140
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.20528
Product name: Diphenylamine
Purity: for synthesis
Packaging: 50kg
Price: $1780
Updated: 2024/03/01

Sigma-Aldrich

Product number: 40263-U
Product name: Diphenylamine solution
Purity: certified reference material, 5000?μg/mL in methanol
Packaging: 1mL
Price: $37.38
Updated: 2024/03/01

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Diphenylamine Chemical Properties,Usage,Production

Description

Solutions of diphenylamine are used to treat apples a few days before harvest. Residue on apples’ surfaces of 10 ppm is permitted by regulation in Australia, Canada, and the United States.

Chemical Properties

white crystals or powder

Chemical Properties

Diphenylamine is a colorless monoclinic leafl et substance. It is used in the manufacture of a variety of substances, i.e., dyestuffs and their intermediates, pesticides, antihelmintic drugs, and as reagents in analytical chemistry laboratories.

Uses

Diphenylamine is used in the manufactureof dyes, as a stabilizer for nitrocelluloseexplosives, and as an analytical reagent forcolorimetric tests for nitrate and chlorate.
Other applications of this compoundinclude preventing postharvest deteriorationof apple and peer crops; as an antioxidant inrubber and elastomer industry and in the per fumery. As a stabilizer for propellants andexplosives, it binds their degradation prod ucts thus prolonging the storage time of suchpropellants.

Uses

Diphenylamine is used post-harvest to prevent superficial scald in apples in cold store.

Uses

Diphenylamine is an aromatic amine that was shown to exhibit antioxidant activities and is now used as an anti-scald agent. It is also used in the manufacture of a variety of substances, for instance, dye stuffs and their intermediates, pesticides, anthelmintic drugs, and as reagents in analytical chemistry laboratories.

Definition

diphenylamine: A colourless crystallinearomatic compound,(C₆H₅)₂NH; m.p. 54°C. It is made byheating phenylamine (aniline) withphenylamine hydrochloride. It is asecondary amine and is both slightlyacidic (forming an N-potassium salt)and slightly basic (forming salts withmineral acids). Its derivatives are employedas stabilizers for syntheticrubber and rocket fuels.

Definition

ChEBI: An aromatic amine containing two phenyl substituents. It has been used as a fungicide for the treatment of superficial scald in apples and pears, but is no longer approved for this purpose within the European Union.

Synthesis Reference(s)

The Journal of Organic Chemistry, 58, p. 6900, 1993 DOI: 10.1021/jo00076a063

General Description

Light tan to brown solid with a pleasant odor. Sinks in water.

Air & Water Reactions

Dust may be explosive if mixed with air in critical proportions and in the presence of a source of ignition [USCG, 1999]. Insoluble in water.

Reactivity Profile

Diphenylamine discolors in light. Diphenylamine can react violently with hexachloromelamine and trichloromelamine. Diphenylamine is incompatible with strong oxidizing agents and strong acids. Diphenylamine is also incompatible with iron and silver salts. Diphenylamine reacts with nitrogen oxides.

Health Hazard

Inhalation may irritate mucous membranes. Overexposure, including ingestion of solid or skin contact, may cause fast pulse, hypertension, and bladder trouble. Contact with dust irritates eyes.

Health Hazard

Diphenylamine is much less toxic than aniline. The acute oral toxicity is low. A doseof 3000 mg/kg was lethal to rats. At a concentration of >500 ppm, a diet fed to ratsfor over 7 months resulted in renal cysts inanimals. Its absorption through the skin andthe respiratory system is lower than that ofaniline. Exposure to its dusts caused changesin liver, spleen, and kidney in test animals.Industrial exposure to diphenylamine hascaused tachycardia, hypertension, eczema,and bladder symptoms in workers (Fairhall1957). Carcinogenicity of this compound isunknown. It showed an adverse reproduc tive effect in animals, causing developmentalabnormalities in urogenital system in pregnant rats.
LD50 value, oral guinea pig: 300 mg/kg.

Health Hazard

Diphenylamine is highly toxic and is rapidly absorbed by the skin and through inhalation. It has caused anorexia, hypertension, eczema, and bladder symptoms. Experimental animals exposed to diphenylamine demonstrated cystic lesions but failed to demonstrate cancerous growth. Inhalation of diphenylamine dust may cause systemic poisoning. The symptoms of toxicity include, but are not limited to, anoxia, headache, fatigue, anorexia, cyanosis, vomiting, diarrhea, emaciation, hypothermia, bladder irritation, kidney, heart, and liver damage.

Fire Hazard

Noncombustible solid; autoignition temperature 634°C (1173°F); low reactivity.

Flammability and Explosibility

Non flammable

Agricultural Uses

Insecticide, Fungicide, Herbicide, Plant growth regulator: Topically in anti-screwworm mixtures, foliar application in a modified growth chamber to decrease ozone injury to leaves of apple, bean, muskmelon, petunia, and tobacco plants. To control weather fleck in tobacco and inhibit algae formation. To prolong the fresh appearance of snapdragons. Protect rice from the toxic effects of thiolcarbamate herbicides [83] . Not currently approved for use in EU countries (resubmitted) . Registered for use in the U.S. and other countries.

Trade name

NOSCALD DPA 31; NOSCALD DPA 283; SCALDIP; Z-876

Safety Profile

Poison by ingestion. Experimental teratogenic effects. Action similar to anhne but less severe. Combustible when exposed to heat or flame. Can react violently with hexachloromelamine or trichloromelamine. Can react with oxilzing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of NOx,. See also ANILINE, AMINES, and AROMATIC AMINES.

Potential Exposure

AgriculturalChemical; Mutagen; Reproductive Effector. DPA is used asa stabilizer for plastics including solid rocket propellants;antioxidant for polymers, greases, and industrial oils; in themanufacture of pharmaceuticals; pesticides, explosives, anddyes.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.Medical observation is recommended.

Environmental Fate

Diphenylamine is present in waste water from industrial processes. Diphenylamine has been detected in milk of animals (cow, sheep, goat, water buffalo) raised in Italy and France.
Pseudokirchneriella subcapitata (Algae) growth was inhibited with a dose of 0.30 mg l^-1. Aquatic invertebrates Daphnia magna showed an acute 48 h EC50 dose of 1.2 mg l^-1.

Metabolic pathway

The major metabolite of diphenylamine (DPA) identified in stored apples is a glucose conjugate of 4-hydroxydiphenylamine, and additional metabolites, characterized as glycosyl conjugates of 2-hydroxy- DPA, 3-hydroxy-DPA, 4-hydroxy-DPA, or dihydroxy- DPA, are also detected along with their intact (i.e. non-conjugated) forms in apple pulp.

storage

Diphenylamine should be protected from physical damage. Storage of diphenylamine outside or a detached area is preferred. Inside storage should be in a standard flammable liquids storage room or cabinet. Diphenylamine should be kept separately from oxidizing materials and incompatible chemical substances. Storage and work areas should be no smoking areas. Diphenylamine should be kept protected from light.

Shipping

Toxic solids, flammable, organic, n.o.s. requiresa shipping label of “POISONOUS/TOXIC MATERIALS.”It falls into Hazard Class 6.1.

Purification Methods

Crystallise diphenylamine from pet ether, MeOH, or EtOH/water. Dry it under vacuum. [Beilstein 12 H 174, 12 IV 271.]

Degradation

Diphenylamine is an anti-oxidant and therefore reacts with oxygen under conditions of use. It darkens on exposure to sunlight. Aqueous photolysis is pH and oxygen dependant (Lopez et al., 1980). It is converted into carbazole (2) and hydrogen peroxide in the presence of dissolved oxygen. In degassed solution it is converted into carbazole (2) and tetrahydrocarbazole (3) (see Scheme 1).

Incompatibilities

Dust may form an explosive mixturewith air. Incompatible with strong acids, strong oxidizers,aldehydes, organic anhydrides, isocyanates, hexachloromelamine, trichloromelamine. Reacts with nitrogen oxidesforming n-nitrosodiphenylamine and heat-, friction-, andshock-sensitive nitro products

Precautions

Students and occupational workers should be careful during use and handling of diphenylamine. Workers should wear impervious protective clothing, including boots, gloves, a laboratory coat, apron or coveralls, as appropriate, to prevent skin contact. Finely dispersed particles of diphenylamine form explosive mixtures in air. Diphenylamine is very harmful on exposures by swallowing, inhalation, and/or skin absorption. Diphenylamine causes irritation to the skin, eyes, and respiratory tract, and causes blood vascular changes leading to methemoglobinemia.

Diphenylamine Preparation Products And Raw materials

Raw materials

Ethanol Aniline

Preparation Products

BENZP-DINITRIDE-THIO-KETONE METANIL YELLOW TAMPRAMINE β-Alanine Basic Blue 11 5-[[4-(aminosulphonyl)-2-nitrophenyl]amino]-2-[[4-[[4-(aminosulphonyl)-2-nitrophenyl]amino]phenyl]amino]benzenesulphonic acid Direct Blending Navy Blue D-R N,N'-Bis- (1-naphthalenyl)-N,N'-bis-phenyl-(1,1'-biphenyl)-4,4'-diamine DIRECT BLACK 22 Direct Blend Blue alpha-Amylcinnamaldehyde Phenothiazine 9-METHYLACRIDINE Nordazepam Bis[4-(2-phenyl-2-propyl)phenyl]amine N,N'-Diphenylbenzidine 4-NITROSODIPHENYLAMINE 9,9-dimethylcarbazine 3-Aminopropionitrile Acid Brown 354 ERIO GREEN B Sodium diphenylamine-4-sulfonate 4-Diazodiphenylamine sulfate Acid Yellow 199 Direct Black 168 Sulphur Blue 7 lithium base grease 2-Amino-5-nitrobenzophenone N-Nitrosodiphenylamine Sulphur Dark Blue 3R N,N'-Bis(3-methylphenyl)-N,N'-bis(phenyl)benzidine 2,2-diphenyl-1-picrylhydrazyl Molybdenum disulfide lithium-based grease photosensitive polyimide photoresist (PSPI) N,N,N',N'-Tetraphenylbenzidine 4,4`-di(a-methylbenzyl)diphenylamine

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View Lastest Price from Diphenylamine manufacturers

Shaanxi Haibo Biotechnology Co., Ltd

Product: Diphenylamine 122-39-4
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 2000ton
Release date: 2023-09-01

Shanghai UCHEM Inc.

Product: Diphenylamine 122-39-4
Price: US $24.00-296.00/kg
Min. Order: 1kg
Purity: 0.98
Supply Ability: 100kg
Release date: 2023-10-25

Hebei Guanlang Biotechnology Co., Ltd.

Product: Diphenylamine 122-39-4
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2023-03-21

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Diphenylamine, Redox-indicator, extra pure, 99+%

DIPHENYLAMINE INDICATOR SOLUTION, 0.3% AQUEOUS

Diphenylamine (1mg/ml in Ethyl Acetate) [Internal standard for Offensive Odors Analysis] (1ml*5)

DIPHENYLAMINE extrapure AR

DIPHENYLAMINE REAGENT (ACS)

diphenylamine, acs

DIPHENYLAMINE(RG)

N-PHENYLBENZAMINE

Diphenylamin

Diphenylamine solution

DiphenylaMine, GR ACS

NO SCALD

N-PHENYLANILINE

N-PHENYLBENZENEAMINE

N-PHENYLBENZENENAMINE

LABOTEST-BB LTBB000505

Anilinobezene

Diphenylamine 99.0+ % for analysis

ANILINOBENZENE

diphenylamine redox

DIPHENYLAMINE INDICATOR

DIPHENYLAMINE