528-29-0 Usage
Chemical Properties
light yellow-brown powder
Uses
1,2-Dinitrobenzene was used as internal standard for analysis of the explosives, TNT, RDX, and tetryl in sea water by vapor phase chromatography with the nickel-63 electron capture detector.
Synthesis Reference(s)
The Journal of Organic Chemistry, 21, p. 1065, 1956 DOI: 10.1021/jo01116a003
General Description
Colorless to yellow solid. Sinks and slowly mixes with water.
Health Hazard
INHALATION, INGESTION, OR SKIN ABSORPTION: Headache, vertigo and vomiting followed by exhaustion, numbness of the legs, staggering and collapse. Intense methemoglobinenia may lead to asphyxia severe enough to injure the CNS. EYES: Irritation. SKIN: Stains skin yellow.
Safety Profile
Suspected carcinogen.
Poison by inhalation and ingestion.
Moderately toxic by sktn contact. Can cause
liver, kidney, and central nervous system
injury. Combustible when exposed to heat
or flame; can react vigorously with oxidzing
materials. A severe explosion hazard when
shocked or exposed to heat or flame. It is
used in bursting charges and to fiu artillery
shells. Mixtures with nitric acid are highly
explosive. To fight fire, use water, Co2, dry
chemical. Dangerous; when heated to
decomposition it emits highly toxic fumes of
NO, and explodes. See also mand pDINITROBENZENE and NITRO
COMPOUNDS of AROMATIC
HYDROCARBONS.
Environmental fate
Biological. Under anaerobic and aerobic conditions using a sewage inoculum, 1,2-dinitrobenzene degraded to nitroaniline (Hallas and Alexander, 1983).
Photolytic. Low et al. (1991) reported that the nitro-containing compounds (e.g., 2,4-
dinitrophenol) undergo degradation by UV light in the presence of titanium dioxide yielding
ammonium, carbonate, and nitrate ions. By analogy, 1,2-dinitrobenzene should degrade forming
identical ions.
Chemical/Physical. Releases toxic nitrogen oxides when heated to decomposition (Sax and
Lewis, 1987). 1,2-Dinitrobenzene will not hydrolyze in water (Kollig, 1993).
Purification Methods
Crystallise it from EtOH. [Beilstein 5 IV 738.]
Check Digit Verification of cas no
The CAS Registry Mumber 528-29-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 528-29:
(5*5)+(4*2)+(3*8)+(2*2)+(1*9)=70
70 % 10 = 0
So 528-29-0 is a valid CAS Registry Number.
InChI:InChI=1/C6H4N2O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H
528-29-0Relevant articles and documents
-
Ogata,Tsuchida
, p. 1065 (1956)
-
-
Wyler
, p. 23,29, 41 (1932)
-
Mass production method of phenylenediamine from high purity dinitrobenzene
-
Paragraph 0028-0032; 0035-0038, (2020/04/09)
The present invention relates to a method for producing phenylenediamine using the high purity of dinitrobenzene, which may manufacture meta-phenylenediamine having a high yield since dinitrobenzene can be produced without aniline as a byproduct. Meta-phenylenediamine is manufactured based on a cost effective raw material by using a process as above without a separate purification process, thereby drastically reducing a manufacturing cost compared to an existing process. Therefore, stable reaction can be induced in a synthetic process, thereby easily and safely manufacturing meta-phenylenediamine.COPYRIGHT KIPO 2020
PROCESS FOR THE MANUFACTURE OF (PER) FLUOROPOLYETHERS WITH AROMATIC END GROUPS
-
, (2015/12/11)
The invention relates to a process which comprises the reaction of a (per)fluoropolyether peroxide with an optionally substituted aromatic or heteroaromatic compound. The process allows to obtain (per)fluoropolyether compounds having two chain ends, wherein one or both chain ends is a —CF2— group covalently bound to an optionally substituted aromatic or heteroaromatic group through a -carbon-carbon- bond. The invention further relates to the use of these compounds and to their derivatives as additives for perfluorinated oils and greases.