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A3212312

Diphenylamine , AR,>99.0%(GC) , 122-39-4

Synonym(s):
Diphenylamine;DPA;N-Phenylaniline

CAS NO.:122-39-4

Empirical Formula: C12H11N

Molecular Weight: 169.22

MDL number: MFCD00003014

EINECS: 204-539-4

Update time: 2022-07-08

PRODUCT Properties

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℃

Description and Uses

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.

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

Safety

Symbol(GHS) 
GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H301+H311+H331-H373-H410
Precautionary statements  P273-P280-P301+P310-P302+P352+P312-P304+P340+P311-P314
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
OEB B
OEL TWA: 10 mg/m3
WGK Germany  3
RTECS  JJ7800000
8-10-23
Autoignition Temperature 630 °C DIN 51794
TSCA  Yes
HS Code  2921 44 00
HazardClass  6.1
PackingGroup  III
Toxicity LD50 orally in Rabbit: 1120 mg/kg LD50 dermal Rabbit > 5000 mg/kg

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