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| CAS No.: | 109-95-5 |
|---|---|
| Name: | Ethyl nitrite |
| Article Data: | 98 |
| Molecular Structure: | |
|
|
|
| Formula: | C2H5NO2 |
| Molecular Weight: | 75.0672 |
| Synonyms: | Ethylnitrite (6CI,7CI);N2O;Nitrosyl ethoxide;Nitrous ether;Nitrous ethyl ether;Spirit of ethyl nitrite;Sweet spirit of niter; |
| EINECS: | 203-722-6 |
| Density: | 1.05 g/cm3 |
| Boiling Point: | 20.039 °C at 760 mmHg |
| Flash Point: | -47.539 °C |
| Appearance: | clear colorless to yellow liquid |
| Hazard Symbols: |
 F, Xn, E
|
| Risk Codes: | 11-20/21/22-2 |
| Safety: | 7-16-35 |
| Transport Information: | UN 1194 3 |
| PSA: | 38.66000 |
| LogP: | 0.70430 |
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Chemistry
Molecular Structure:
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Molecular Formula: C2H5NO2
Molecular Weight: 75.0666
IUPAC Name: Ethyl nitrite
Synonyms of Ethyl nitrite (CAS NO.109-95-5): 4-01-00-01327 (Beilstein Handbook Reference) ; AI3-25307 ; BRN 1699562 ; EINECS 203-722-6 ; Ethyl nitrite ; Ethyl nitrite spirit ; Ethylester kyseliny dusite ; Ethylester kyseliny dusite [Czech] ; FEMA No. 2446 ; HSDB 416 ; Hyponitrous ether ; Nitrosyl ethoxide ; Nitrous acid, ethyl ester ; Nitrous ether ; Nitrous ethyl ether ; Spirit of ethyl nitrite ; Spirit of nitrous ether ; Sweet spirit of niter ; Sweet spirit of nitre ; UNII-8C7CJ279RV ; Ethyl nitrite solutions ; Ethyl nitrite solutions [UN1194] [Flammable liquid] ; UN1194
CAS NO: 109-95-5
Classification Code: Nitrogen Compounds ; Organic Building Blocks ; Organic Nitrates/Nitrites
Index of Refraction: 1.387
Molar Refractivity: 16.86 cm3
Molar Volume: 71.5 cm3
Surface Tension: 30.8 dyne/cm
Density: 1.04 g/cm3
Enthalpy of Vaporization: 25.58 kJ/mol
Boiling Point: 20 °C at 760 mmHg
Vapour Pressure: 906 mmHg at 25°C
Uses
Ethyl nitrite (CAS NO.109-95-5) is mainly used for the preparation of PAM-drug in the pharmaceutical industry.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| cat | LC | inhalation | > 200mg/m3/15M (200mg/m3) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(1), Pg. 62, 1983. | |
| mouse | LC | inhalation | > 200mg/m3/15M (200mg/m3) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(1), Pg. 62, 1983. | |
| rat | LC50 | inhalation | 160ppm/4H (160ppm) | BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX) BEHAVIORAL: EXCITEMENT LUNGS, THORAX, OR RESPIRATION: CYANOSIS | Fundamental and Applied Toxicology. Vol. 8, Pg. 101, 1987. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Hazard Codes of Ethyl nitrite (CAS NO.109-95-5): 
F,
Xn,
E
Risk Statements: 11-20/21/22-2
R11: Highly flammable.
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
R2: Risk of explosion by shock, friction, fire or other source of ignition.
Safety Statements: 7-16-35
S7: Keep container tightly closed.
S16: Keep away from sources of ignition.
S35: This material and its container must be disposed of in a safe way.
RIDADR: UN 1194 3/PG 1
RTECS: RA0810000
HazardClass: 3.1
PackingGroup: I
Poison by inhalation and ingestion. Narcotic in high concentrations. Lowers blood pressure. Methemoglobinemia has been reported. A very dangerous fire and severe explosion hazard when exposed to heat or flame. A powerful oxidizer. May explode when heated above 90°C. Highly dangerous when heated to decomposition or on contact with acid or acid fumes. To fight fire, use foam, CO2, dry chemical, or water spray. When heated to decomposition it emits toxic fumes of NOx. See also NITRITES and ETHERS.
Standards and Recommendations
DOT Classification: 3; Label: Flammable Liquid, Poison
Specification
Ethyl nitrite (CAS NO.109-95-5) is an alkyl nitrite. It may be prepared from ethanol.
It is the main ingredient in a traditional ethanol-based South African remedy for colds and flu known as Witdulsies and sold in pharmacies. It is known as a traditional Afrikaans remedy and may have Dutch roots, as the same remedy is apparently made by the Germano-Dutch Amish people in the USA. However FDA has blocked over-the-counter sales of this same remedy, known in the USA as sweet nitrite or sweet spirit of nitre since 1980.