13530-68-2 Usage
Reactivity Profile
dichromic acid is a very powerful oxidizing agent, confirmed human carcinogen. Upon contact with reducing reagents dichromic acid can cause a violent explosion, in contact with organic matter dichromic acid may cause a violent oxidation leading to ignition. Dangerously reactive with acetone, alcohols, alkali metals (sodium, potassium), ammonia, arsenic, dimethylformamide, hydrogen sulfide, phosphorus, peroxyformic acid, pyridine, selenium, sulfur, and many other chemicals [Sax, 9th ed., 1996, p. 852]. When mixed with sulfuric acid for glass cleaning operations, used solution in closed bottle may explode due to internal pressure of carbon dioxide arising from contamination by carbon compounds [Bryson, W. R., Chem. Brit., 1975, 11, p. 377].
Health Hazard
Toxic by ingestion. Inhalation of dust is toxic. Fire may produce irritating, corrosive and/or toxic gases. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
These substances will accelerate burning when involved in a fire. May explode from heat or contamination. Some may burn rapidly. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.
Check Digit Verification of cas no
The CAS Registry Mumber 13530-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,3 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 13530-68:
(7*1)+(6*3)+(5*5)+(4*3)+(3*0)+(2*6)+(1*8)=82
82 % 10 = 2
So 13530-68-2 is a valid CAS Registry Number.
InChI:InChI=1/2Cr.2H2O.5O/h;;2*1H2;;;;;/q2*+1;;;;;;;/p-2/rCr2H2O7/c3-1(4,5)9-2(6,7)8/h3,6H
13530-68-2Relevant articles and documents
Evaluation of a cyclopentane-based γ-amino acid for the ability to promote α/γ-peptide secondary structure
Giuliano, Michael W.,Maynard, Stacy J.,Almeida, Aaron M.,Reidenbach, Andrew G.,Guo, Li,Ulrich, Emily C.,Guzei, Ilia A.,Gellman, Samuel H.
, p. 12351 - 12361 (2014/01/17)
We report the asymmetric synthesis of the γ-amino acid (1R,2R)-2-aminomethyl-1-cyclopentane carboxylic acid (AMCP) and an evaluation of this residue's potential to promote secondary structure in α/γ- peptides. Simulated annealing calculations using NMR-derived distance restraints obtained for α/γ-peptides in chloroform reveal that AMCP-containing oligomers are conformationally flexible. However, additional evidence suggests that an internally hydrogen-bonded helical conformation is partially populated in solution. From these data, we propose characteristic NOE patterns for the formation of the α/γ-peptide 12/10-helix and discuss the apparent conformational frustration of AMCP-containing oligomers.
