- NITROSYL AZIDE
- Nitrosyl chloride
- Nitrosyl cyanide
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Cas Database |
| Name |
Nitrosyl chloride |
EINECS | 220-273-1 |
| CAS No. | 2696-92-6 | Density | 1.54g/cm3 |
| PSA | 29.43000 | LogP | 0.90660 |
| Solubility | decomposes in H2O; soluble fuming H2SO4 [HAW93] | Melting Point |
-59.6°C |
| Formula | ClN O | Boiling Point | °Cat760mmHg |
| Molecular Weight | 65.4591 | Flash Point | °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | 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 ignite spontaneously. When heated to decomposition it emits very toxic fumes of Cl− and NOx. | Risk Codes | R36/37/38 |
| Molecular Structure |
|
Hazard Symbols | Strong irritant, especially to lungs and mucous membranes. |
| Synonyms |
Nitrosylchloride (8CI);Chlorine nitride oxide (ClNO);Nitrogen oxide chloride (NOCl);Nitrogen oxychloride;Nitrogen oxychloride (NOCl);Nitrosochloride;Nitrosoniumchloride; |
Article Data | 284 |
Nitrosyl chloride Synthetic route
| Conditions | Yield |
|---|---|
| In diethyl ether byproducts: SO2; to finely ground dry Ag salt in anhyd. Et2O cooled to 0°C added dropwise with vigorous stirring equimolar amt. of thionyl chloride; suspn. stirred for 15 min; soln. was decanted from AgCl; AgCl dried; soln. washed (Et2O); all extracts combined; cooled to 0°C; | A n/a B 99% |
| Conditions | Yield |
|---|---|
| In diethyl ether byproducts: SO2, SO3; to finely ground dry Ag salt in anhyd. Et2O cooled to 0°C added dropwise with vigorous stirring equimolar amt. of thionyl chloride; suspn. stirred for 15 min; soln. was decanted from AgCl; AgCl dried; soln. washed (Et2O); all extracts combined; cooled to 0°C; | A n/a B n/a C 99% |
- 10026-04-7, 53609-55-5
tetrachlorosilane
- 10102-44-0
Nitrogen dioxide
A
- 112926-00-8, 7631-86-9
silica gel
C
- 2696-92-6
nitrosylchloride
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:5.6, 353 K); mass spectrometry, chromy.; | A 98.5% B n/a C n/a |
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:6.0, 313 K); mass spectrometry, chromy.; | A 98.3% B n/a C n/a |
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:6.8, 313 K); mass spectrometry, chromy.; | A 98.5% B n/a C n/a |
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:5.2, 313 K); mass spectrometry, chromy.; | A 95.5% B n/a C n/a |
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:6, 298 K, exclusion of air, 180 h), heating 313-333 K, 8-10 h); distn. of gasous products; mass spectrometry, chromy.; |
- 7697-37-2
nitric acid
B
- 7732-18-5
water
C
- 10102-44-0
Nitrogen dioxide
D
- 2696-92-6
nitrosylchloride
E
- 10024-97-2
dinitrogen monoxide
| Conditions | Yield |
|---|---|
| In nitric acid byproducts: Cl2; to Ru complex was added concd. HNO3; mixt. heated under reflux for 5 min; cooled to room temp.; ppt. filtered off; washed (water, alc., ether); dried (vac.); recrystd. (aq. HNO3); elem. anal.; | A 95% B n/a C n/a D n/a E n/a |
- 10241-05-1
molybdenum(V) chloride
- 10102-43-9
nitrogen(II) oxide
- 75-05-8
acetonitrile
A
- 65060-56-2
Mo(NO)Cl3(NCMe)2
B
- 2696-92-6
nitrosylchloride
| Conditions | Yield |
|---|---|
| In dichloromethane NO was bubbled through the soln. of MoCl5 and CH3CN at room temp. for 1h, Ar atm.; concn., pptn. with pentane, filtration, washing with pentane, drying invac.; elem. anal.; | A 70% B n/a |
| Conditions | Yield |
|---|---|
| In nitric acid byproducts: Cl2; to Ru complex was added concd. HNO3; mixt. heated under reflux for 50 min; cooled to room temp.; ppt. filtered off; washed (water, alc., ether); dried (vac.); mother liquor evapd. on water bath; ppt. was obtained; elem.anal.; | A 65% B n/a C n/a D n/a |
- 10026-04-7, 53609-55-5
tetrachlorosilane
- 10102-44-0
Nitrogen dioxide
A
- 112926-00-8, 7631-86-9
silica gel
B
- 7782-50-5
chlorine
D
- 2696-92-6
nitrosylchloride
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:4.8, 313 K); mass spectrometry, chromy.; | A 62% B <1 C n/a D n/a |
| In neat (no solvent) heating (molar ratio SiCl4:NO2 1:5.6, 293 K); mass spectrometry, chromy.; | A 51% B <1 C n/a D n/a |
- 10102-43-9
nitrogen(II) oxide
- 13283-01-7
tungsten(VI) chloride
- 92542-39-7
trichlorotrinitrosyltungsten
B
- 2696-92-6
nitrosylchloride
| Conditions | Yield |
|---|---|
| In dichloromethane mixt. of WCl6 and CH2Cl2 under N2 was stirred at room temp., N2 was replaced by NO for 30 min, NO was flushed out of system, mixt. was refluxedunder N2 for 3.5 h to removed ClNO; filtered, washed with CH2Cl2, dried under vac. at ambient temp.; elem. anal.; | A 61% B n/a |
- 10102-43-9
nitrogen(II) oxide
- 13283-01-7
tungsten(VI) chloride
- 92473-06-8
W(NO)2Cl4
B
- 2696-92-6
nitrosylchloride
| Conditions | Yield |
|---|---|
| In dichloromethane mixt. of WCl6 and CH2Cl2 under N2 was stirred at room temp., N2 was replaced by NO for 17 min, NO was flushed out of system, mixt. was refluxedunder N2 for 3.5 h to removed ClNO; filtered, washed with CH2Cl2, dried under vac. at ambient temp.; elem. anal.; | A 47% B n/a |
| Conditions | Yield |
|---|---|
| In neat (no solvent) HNO3 : NaCl = 3:1; at 100°C about 3 h;; | 35% |
| In neat (no solvent) HNO3 : NaCl = 3:1; at 100°C about 3 h;; | 35% |
| In water using concd. HNO3;; |
Nitrosyl chloride Chemical Properties
Product Name: Nitrosyl chloride (CAS NO.2696-92-6)
Molecular Formula: ClNO
Molecular Weight: 65.4591g/mol
Mol File: 2696-92-6.mol
EINECS: 220-273-1
Density: 1.54 g/cm3
Surface Tension: 42.6 dyne/cm
Enthalpy of Vaporization: 25.78 kJ/mol
Vapour Pressure: 2180 mmHg at 25°C
XLogP3-AA: 0.7
H-Bond Donor: 0
H-Bond Acceptor: 2
Structure Descriptors of Nitrosyl chloride (CAS NO.2696-92-6):
IUPAC Name: nitrosyl chloride
Canonical SMILES: N(=O)Cl
InChI: InChI=1S/ClNO/c1-2-3
InChIKey: VPCDQGACGWYTMC-UHFFFAOYSA-N
Nitrosyl chloride Production
NOCl can be prepared by the direct combination of chlorine and nitric oxide. Alternatively, nitrosylsulfuric acid and HCl also affords the compound:
HCl + NOHSO4 → NOCl + H2SO4
It also arises from the combination of hydrochloric and nitric acids according to the following reaction:
HNO3 + 3 HCl → Cl2 + 2 H2O + NOCl
Although this mixture was used for dissolving gold for a long time the first description of the gas was done by Edmund Davy in 1831.
Nitrosyl chloride Consensus Reports
Reported in EPA TSCA Inventory.
Nitrosyl chloride 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 ignite spontaneously. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
Safety Information of Nitrosyl chloride (CAS NO.2696-92-6):
Hazard Codes: C
,T
RIDADR: 1069
Hazard Note: Toxic/Corrosive
HazardClass: 2.3
Nitrosyl chloride Standards and Recommendations
DOT Classification: 2.3; Label: Poison Gas, Corrosive
Nitrosyl chloride Specification
Nitrosyl chloride , its CAS NO. is 2696-92-6, the synonyms are EINECS 220-273-1 ; HSDB 849 ; Nitrogen chloride oxide (nocl) ; Nitrogen oxychloride (NOCl) ; Nitrosonium chloride ; Nitrosyl chloride ((NO)Cl) .
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