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| Name |
Methyl chloroformate |
EINECS | 201-187-3 |
| CAS No. | 79-22-1 | Density | 1.236 g/cm3 |
| PSA | 26.30000 | LogP | 0.99160 |
| Solubility | hydrolysis with water | Melting Point |
-61°C |
| Formula | C2H3ClO2 | Boiling Point | 71 °C at 760 mmHg |
| Molecular Weight | 94.4976 | Flash Point | 7.8 °C |
| Transport Information | UN 1238 6.1/PG 1 | Appearance | clear liquid |
| Safety | 14-26-28-36/37/39-45-63-46-28A-39-36/37 | Risk Codes | 11-21/22-26-34 |
| Molecular Structure |
|
Hazard Symbols |
 F,  T+
|
| Synonyms |
Formicacid, chloro-, methyl ester (6CI,8CI);Chlorocarbonic acid methyl ester;Chloroformic acid methyl ester;Methoxycarbonyl chloride;Methylcarbonochloridate;Methyl chlorocarbonate; |
Article Data | 66 |
Methyl chloroformate Chemical Properties
Molecular Structure of Methyl chloroformate (CAS NO.79-22-1):
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IUPAC Name: methyl carbonochloridate
Empirical Formula: C2H3ClO2
Molecular Weight: 94.497
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 1
Polar Surface Area: 26.3Å2
Index of Refraction: 1.385
Molar Refractivity: 17.93 cm3
Molar Volume: 76.4 cm3
Surface Tension: 27.4 dyne/cm
Density: 1.236 g/cm3
Flash Point: 7.8 °C
Enthalpy of Vaporization: 31.25 kJ/mol
Boiling Point: 71 °C at 760 mmHg
Vapour Pressure: 126 mmHg at 25°C
Melting point: -61°C
Storage temp: Store at 0-5°C
Water Solubility: hydrolysis
Merck: 13,6071
InChI
InChI=1/C2H3ClO2/c1-5-2(3)4/h1H3
Smiles
C(OC)(=O)Cl
EINECS: 201-187-3
Product Categories: Organics; Chloroformates; Acid HalidesDerivatization Reagents HPLC; Carbonyl Chlorides; Carbonyl Compounds; Fluorescence; Organic Building Blocks
Methyl chloroformate Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| cat | LCLo | inhalation | 1500mg/m3/30M (1500mg/m3) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. | |
| guinea pig | LD50 | oral | 140mg/kg (140mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. | |
| man | TCLo | inhalation | 5mg/m3 (5mg/m3) | SENSE ORGANS AND SPECIAL SENSES: CONJUNCTIVE IRRITATION: EYE LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. |
| mouse | LC50 | inhalation | 185mg/m3/2H (185mg/m3) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: EXCITEMENT BEHAVIORAL: MUSCLE WEAKNESS | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. |
| mouse | LD50 | intraperitoneal | 40mg/kg (40mg/kg) | National Technical Information Service. Vol. AD691-490, | |
| mouse | LD50 | oral | 67mg/kg (67mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. | |
| mouse | LD50 | skin | 1750mg/kg (1750mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. | |
| rabbit | LD50 | skin | 7120mg/kg (7120mg/kg) | Toxicology and Applied Pharmacology. Vol. 42, Pg. 417, 1977. | |
| rat | LC50 | inhalation | 88ppm/1H (88ppm) | Toxicology and Applied Pharmacology. Vol. 42, Pg. 417, 1977. | |
| rat | LD50 | oral | 60mg/kg (60mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 42(5), Pg. 97, 1977. |
Methyl chloroformate Safety Profile
Hazard Codes: 
F,
T+
Risk Statements: 11-21/22-26-34
R11:Highly flammable.
R21/22:Harmful in contact with skin and if swallowed.
R26:Very toxic by inhalation.
R34:Causes burns.
Safety Statements: 14-26-28-36/37/39-45-63-46-28A-39-36/37
S14:Keep away from ... (a list of incompatible materials will follow).
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S46:If swallowed, seek medical advice immediately and show this container or label.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S39:Wear eye / face protection.
S36/37:Wear suitable protective clothing and gloves.
RIDADR: UN 1238 6.1/PG 1
WGK Germany: 2
F: 10-19-21
HazardClass: 6.1(a)
PackngGroup: I
Methyl chloroformate Specification
Methyl chloroformate , with CAS number of 79-22-1, can be called carbonochloridic acid, methyl ester ; carbonochloridic acid methyl ester . It is a colorless liquid with a pungent odor, it is corrosive to metals and tissue. Can be used to make other chemicals and insecticides. Methyl chloroformate is incompatible with water, strong oxidizing agents, alcohols, bases (including amines). Decomposes slowly in water to yield methanol, HCl and CO2; reaction can be hazardous if water is hot. Attacks many metals especially in humid atmosphere. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts.