Ceric ammonium nitrate supplier CAS No.16774-21-3 CAS NO.16774-21-3

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product name:	ceric ammonium nitrate
synonyms:	can;ceric ammonium nitrate;cerium(+4)diammonium nitrate;cerium ammonium nitrate;cerium(iv) ammonium nitrate;cerium(iv) diammonium nitrate;cerous ammonium nitrate;diammonium cerium(iv) nitrate
cas:	16774-21-3
mf:	ce.4no3.2hno3.2h3n
mw:	548.22
einecs:	240-827-6
product categories:	others;oxidation;synthetic reagents;metal nitrate salts;inorganics
mol file:	16774-21-3.mol

ceric ammonium nitrate chemical properties

melting point	107-108 °c
density	1.10 g/ml at 20 °c
storage temp.	0-6°c
solubility	919-1020g/l
form	powder/solid
color	yellow to orange
ph	0.61 (111.11g/l, h2o, 20℃)
water solubility	1410 g/l (20 ºc)
merck	14,1992
stability:	stable. oxidizer - contact with combustible material may cause fire. incompatible with strong reducing agents, combustible material.
inchikey	wibgoeraeyjbot-uhfffaoysa-n
cas database reference	16774-21-3(cas database reference)
epa substance registry system	cerate(2-), hexakis(nitrato-.kappa.o)-, diammonium, (oc-6-11)-(16774-21-3)

safety information

hazard codes	xi,o,xn
risk statements	8-36/37/38-36/38-41-22
safety statements	26-36-17-37/39
ridadr	un 1477 5.1/pg 2
wgk germany	3
f	8
tsca	yes
hs code	3822 00 00
hazardclass	5.1
packinggroup	iii
toxicity	ld50 orally in rabbit: > 300 - 2000 mg/kg

msds information

provider	language
acros	english
sigmaaldrich	english
alfa	english

ceric ammonium nitrate usage and synthesis

chemical properties	yellow-orange crystals
uses	used as oxidimetric standard.
uses	a strongly oxidizing cerium preparation
uses	ceric ammonium nitrate is used as a volumetric oxidizing reagent in many oxidation-reduction titrations. cerium(iv) ion is a strong oxidant similar to permanganate ion. it is the most widely-used primary standard among all ce(iv) compounds. other applications of this compound are in organic oxidation reactions; and as a catalyst in polymerization of olefins.
preparation	ceric ammonium nitrate is prepared by electrolytic oxidation of cerous nitrate in nitric acid to ceric nitrate, followed by the addition of ammonium nitrate solution. it is separated from the solution by crystallization. it may be prepared alternatively by dissolving cerium(ii) oxide, ceo•h2o in concentrated nitric acid followed by treatment with ammonium nitrate.
reactions	the most important reactions of ceric ammonium nitrate are the oxidations, attributed to ce4+ ion in the solution. the standard reduction potential e° for the formal half-reaction: ce4+ + e– ce3+ in 1 m h2so4 is 1.44 v. the oxidizing strength is comparable to permanganate (mno4- ), bromate (bro3-), and dichromate (cr2o72-) anions. analytical applications involve reactions with reductants such as sodium oxalate (na2c2o4) or arsenic (iii) oxide (as2o3) in the presence of iron, with ferroin (1,10–phenanthroline iron(ii) complex) as the indicator.
hazard	ceric ammonium nitrate is a powerful oxidizing agent. precautions should be taken to avoid accidental contacts with orgnaic or other readily oxidizable substances.
purification methods	ceric ammonium nitrate (125g) is warmed with 100ml of dilute hno3 (1:3 v/v) and 40g of nh4no3 until it dissolves, and filtered through a sintered-glass funnel. the solid which separates on cooling in ice is filtered off on a sintered funnel (at the pump) and air is sucked through the solid for 1-2 hours to remove most of the nitric acid. finally, the solid is dried at 80-85o.

ceric ammonium nitrate preparation products and raw materials

preparation products

beta-methyl vinyl phosphate (map)-->h-gly-amc hbr-->5-chloro-2'-deoxyuridine-->2,4-dichloro-5-iodopyrimidine-->3-chloro-4-((cyclopropylamino)methyl)benzaldehyde-->1-(3-chloro-4-((cyclopropylamino)methyl)phenyl)ethanone-->2,5-dichlorobenzo-1,4-quinone-->3-iodo-5-nitro (1h)indazole-->4-iodo-1 h-pyrazole-3-carboxylic acid