13444-90-1 Usage
Chemical Properties
Colorless gas; odor of chlorine; liquid and solutions have yellow tinge.
Physical properties
Colorless gas; chlorine-like odor; gas density 2.81 g/L at 100°C; liquefies to a pale-yellow liquid at -14.3°C; density of the liquid 1.33 g/mL; solidifies at -145°C; decomposes above 120°C; reacts with water.
Uses
Nitrating and chlorinating agent in organic syntheses.
Preparation
Nitryl chloride is prepared most conveniently by reacting chlorosulfonic acid with anhydrous nitric acid at 0°C:An older preparation method involves passing dry chlorine gas slowly over dry silver nitrate heated to about 100°C. The gaseous reaction products are allowed to cool to low temperature. After several hours, nitryl chloride condenses to a pale yellowish-brown liquid. Chlorine is removed by purging with CO2. 2AgNO3 + 2Cl2 → 2NO2Cl + 2AgCl + O2.
Hazard
May explode on contact with organic materials. Corrosive to tissue.
Safety Profile
A poison by inhalation. Acorrosive irritant to skin, eyes, and mucous membranes. Apowerful oxidizer. The gas or liquid may attack organicmatter with explosive violence. Violent reaction withammonia or sulfur dioxide. Incompatible with tin(II)bromide
Check Digit Verification of cas no
The CAS Registry Mumber 13444-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,4 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13444-90:
(7*1)+(6*3)+(5*4)+(4*4)+(3*4)+(2*9)+(1*0)=91
91 % 10 = 1
So 13444-90-1 is a valid CAS Registry Number.
InChI:InChI=1/ClH.HNO2/c;2-1-3/h1H;1H/p-1
13444-90-1Relevant articles and documents
The volume-based thermodynamics (VBT) and attempted preparation of an isomeric salt, nitryl chlorate: [NO2][ClO3]
Bhasin, Kuldip K.,Crawford, Margaret-Jane,Jenkins, H. Donald Brooke,Klapoetke, Thomas M.,Liebman, Joel F.
, p. 897 - 900 (2006)
Nitrosyl perchlorate, [NO][ClO4], is a known and stable salt. In this contribution we describe the attempt to synthesize the isomeric compound nitryl chlorate, [NO2][ClO3]. The results are discussed on the basis of volume-based thermodynamics (VBT).
FTIR Study of the Kinetics and Mechanism for the Cl-Atom-Initiated Reactions of SiHCl3
Niki, H.,Maker, P. D.,Savage, C. M.,Breitenbach, L. P.,Hurley, M. D.
, p. 3725 - 3729 (2007/10/02)
On the basis FTIR product analysis of the UV-visible (λ >= 300 nm) photolysis of Cl2-SiHCl3 mixtures in 700 torr of N2-O2, Cl atoms were shown to predominantly undergo an H-atom abstraction reaction rather than an attachement/displacement reaction with SiHCl3.The corresponding rate constant k was determined at 298 K to be 2.9 X 10E-11 cm3molecule-1s-1 by the competitive kinetic method with reference to the Cl + C6H6 reaction.IR absorption bands attributable to two new gaseous products, SiCl3OCl and SiCl3OH, were detected in the subsequent oxidation of the primary radical SiCl3.Kinetic and spectroscopic evidence was also obtained for the NO2-addition reaction of the oxy and peroxy radicals SiCl3O and SiCl3OO.A plausible mechanism for the formation of these products is presented.
