| Identification | Back Directory | [Name]
Nitrosyl chloride | [CAS]
2696-92-6 | [Synonyms]
Nitrosylchlorid
Nitroso chloride
Nitrosyl chloride
Nitrogen oxychloride
Nitrosyl chloride ((NO)Cl)
Nitrosyl chloride ISO 9001：2015 REACH | [EINECS(EC#)]
220-273-1 | [Molecular Formula]
ClNO | [MDL Number]
MFCD00040539 | [MOL File]
2696-92-6.mol | [Molecular Weight]
65.4591 |
| Chemical Properties | Back Directory | [Definition]
One of the oxidizing agents in aqua regia. | [Appearance]
Yellow-red liquid or yellow gas.Decomposed by water; dissociates into nitric oxide and chlorine on heating;
soluble in fuming sulfuric acid. Nonflammable. | [Melting point ]
-59.6°C | [Boiling point ]
-5 | [density ]
1.417 | [vapor density ]
2.3 | [solubility ]
reacts with H2O | [form ]
yellow-red-brown gas | [color ]
Orange-yellow gas condensing to a deep red liquid | [Odor]
irritating odor | [Water Solubility ]
decomposes in H2O; soluble fuming H2SO4 [HAW93] | [Dielectric constant]
18.0（-12℃） | [LogP]
0.351 (est) | [Uses]
Synthetic detergents, catalyst, intermediate. | [EPA Substance Registry System]
Nitrosyl chloride (2696-92-6) |
| Hazard Information | Back Directory | [Chemical Properties]
Yellow-red liquid or yellow gas.Decomposed by water; dissociates into nitric oxide and chlorine on heating;
soluble in fuming sulfuric acid. Nonflammable. | [General Description]
A yellow to yellowish red gas. Liquefies at -5.5°C. Very toxic by inhalation. Noncombustible, but accelerates burning of combustible material. Decomposed by water to form corrosive hydrochloric acid. Vapors heavier than air. Prolonged exposure to fire or heat can cause containers to rupture violently and rocket . | [Air & Water Reactions]
Dissolves into and reacts with moisture in the air or with water to form hydrochloric acid and toxic red oxides of nitrogen. | [Reactivity Profile]
Nitrosyl chloride is an oxidizing agent. Dissociates into nitric oxide and chlorine on heating. Gives an explosive reaction when sealed in a tube with a residue of acetone and in the presence of platinum catalyst [Chem. Eng. News 35(43):60. 1967]. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291]. | [Health Hazard]
Gas is highly toxic. Inhalation causes severe irritation of respiratory tract and damage to mucous membranes. Delayed effects, which include severe pulmonary edema, may not be apparent for several hours. | [Fire Hazard]
Special Hazards of Combustion Products: Very toxic gases are generated when heated | [Hazard]
Strong irritant, especially to lungs and
mucous membranes. | [Potential Exposure]
A nitrocompound used as a reagent,
catalyst, bleaching agent, and intermediate for making other
chemicals. | [First aid]
First Aid: Move victim to fresh air. Call 911 or
emergency medical service. Inhalation: remove victim to
fresh air; call a doctor; enforce complete rest until doctor
arrives; observe at least 24 hours for delayed effects. Skin
or eyes: flush with water for at least 15 minutes.
Immediately call a physician and be prepared to transport
the victim to a hospital even if no symptoms (such as
wheezing, coughing, shortness of breath, or burning in the
mouth, throat, or chest) develop. Give artificial respiration
if victim is not breathing. Do not use mouth-to-mouth
method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped
with a one-way valve or other proper respiratory medical
device. Administer oxygen if breathing is difficult. Remove
and isolate contaminated clothing and shoes. In case of
contact with liquefied gas, thaw frosted parts with lukewarm
water. In case of contact with substance, immediately
flush skin or eyes with running water for at least 20 minutes.
Keep victim warm and quiet. Keep victim under
observation. Effects of contact or inhalation may be
delayed. Ensure that medical personnel are aware of the
material(s) involved and take precautions to protect
themselves. | [Shipping]
UN1069 Nitrosyl chloride, Hazard Class: 2.3;
Labels 2.3-Poisonous gas, 8-Corrosive material; Inhalation
Hazard Zone C | [Incompatibilities]
Dissolves into and reacts with moisture
in the air or with water forming hydrochloric acid and toxic
red oxides of nitrogen. Nitrosyl chloride is a strong
oxidizer. Violent reaction with strong acids, alkalis (e.g.,
sodium hydroxide), ammonia, amines, reducing agents,
other strong oxidizers. Elevated temperature may cause
explosive decomposition. Dissociates into nitric oxide and
chlorine on heating. Corrosive to most metals. Attacks
some plastics, rubber, and coatings. | [Waste Disposal]
Return refillable compressed
gas cylinders to supplier. Use a licensed professional waste
disposal service to dispose of this material. Dissolve or mix
the material with a combustible solvent and burn in a
chemical incinerator equipped with an afterburner and
scrubber. All federal, state, and local environmental regulations
must be observed. | [Physical properties]
Yellow gas; heavier than air, density 2.3 (air=1); gas density 2.872 g/L; liquefies at -5.55°C; liquid density 1.273 g/mL; freezes at -59.4°C; critical temperature 167°C; reacts with water; soluble in fuming sulfuric acid. | [Preparation]
Nitrosyl chloride can be prepared by the reaction of nitric oxide with chlorine: 2NO + Cl2 → 2ClNO
Also, nitrosyl chloride is produced by the action of chlorine on sodium nitrate; or by the reaction of nitrosyl sulfuric acid with hydrochloric acid: NaNO3 + Cl2 → ClNO + NaClO2 ONHSO4 + HCl → ClNO + H2 SO4
Nitrosyl chloride also is obtained as a byproduct in the manufacture of potassium nitrate from potassium chloride and nitric acid:In the above preparative method, nitrosyl chloride must be separated from nitric acid; otherwise, in the presence of pure and excess nitric acid, it can decompose to nitrogen dioxide and chlorine:2ClNO + HNO3 → 6NO2 + Cl2 +2H2O
Also, nitrosyl chloride can be synthesized from its elements by heating nitrogen, oxygen and chlorine gas at 400°C: N2 + O2 + Cl2 → 2ClNO
Faraday obtained nitrosyl chloride by dissolving palladium in a mixture of hydrochloric and nitric acids (Faraday, M. Trans. Roy. Soc. (London), Vol. 136, pp. 48, 1846): Pd + HNO3 + 3HCl → PdCl2 + ClNO + 2H2O. | [Purification Methods]
It is an orange gas with a suffocating odour. It has been fractionally distilled at atmospheric pressure in an all-glass, low-temperature still, taking the fraction boiling at -4o and storing it in sealed tubes. Alternatively the gas is dried by CaCl2 and passed through H2SO4 when Cl2 passes on, but NOCl is absorbed to form nitrososulfuric acid (NO.HSO4) which on warming with NaCl evolves pure NOCl [Tilden J Chem Soc 27 630 1874.] It is decomposed by H2O and alkali, and forms compounds with metal chlorides e.g. FeCl3.NOCl. [Coleman Inorg Synth I 55 1939.] |
| Safety Data | Back Directory | [Hazard Codes ]
C,T | [RIDADR ]
1069 | [Hazard Note ]
Toxic/Corrosive | [HazardClass ]
2.3 | [Safety Profile]
Poison by inhalation
and ingestion. A corrosive irritant to skin,
eyes, and mucous membranes. Inhalation
may cause pulmonary edema and
hemorrhage. Potentially explosive reaction
with acetone + platinum. Mixtures with
hydrogen + oxygen igmte spontaneously.
When heated to decomposition it emits very
toxic fumes of Cland NOx. | [Hazardous Substances Data]
2696-92-6(Hazardous Substances Data) |
|
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tonsooh
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027-83295551 13317178958 |
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www.cowardchemical.com/ |
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