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| CAS No.: | 126-98-7 |
|---|---|
| Name: | Methacrylonitrile |
| Article Data: | 111 |
| Molecular Structure: | |
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| Formula: | C4H5 N |
| Molecular Weight: | 67.0904 |
| Synonyms: | Methacrylonitrile(8CI); 1-Methylethenyl cyanide; 2-Cyano-1-propene; 2-Cyanopropene;2-Methyl-2-propenenitrile; 2-Methylacrylonitrile; 2-Methylpropenenitrile;Isobutenenitrile; Isopropene cyanide; Isopropenylnitrile; Methacrylnitrile;Methylacrylonitrile; NSC 24145; a-Methacrylonitrile; a-Methylacrylonitrile |
| EINECS: | 204-817-5 |
| Density: | 0.8 |
| Melting Point: | -35.8 ºC |
| Boiling Point: | 90-92 ºC |
| Flash Point: | 12 ºC |
| Solubility: | 2.57 g/100 mL (20 ºC) in water |
| Appearance: | straw yellow crystal |
| Hazard Symbols: |
 
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| Risk Codes: | R11;R23/24/25;R43 |
| Safety: | Poison by ingestion, inhalation, skin contact, and intraperitoneal routes. An eye irritant. A dangerous fire hazard when exposed to heat, flame, or sparks. When heated to decomposition it emits toxic fumes of NOx and CN−. See also NITRILES. |
| Transport Information: | UN 3079 |
| PSA: | 23.79000 |
| LogP: | 1.08608 |
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Chemistry
Chemical Name: Methacrylonitrile
IUPAC NAME: 2-Methylprop-2-enenitrile
CAS No.: 126-98-7
EINECS: 204-817-5
RTECS: UD1400000
Molecular Formula: C4H5N
Molecular Weight: 67.09 g/mol
Melting Point: −35.8 °C(lit.)
Density: 0.809 g/cm3
Flash Point: 12.2 °C
Boiling Point: 90.3 °C at 760 mmHg
Following is the structure of Methylacrylonitrile (126-98-7):
Product Categories about are Alpha sort ; MAlphabetic ; META - METH ; Volatiles/ semivolatiles ; Acrylic monomers ; Acrylonitrile ; Monomers
The chemical synonymous of Methylacrylonitrile (126-98-7) are 2-Methyl-2-propenenitrile ; 2-Methacrylonitrile ; Alpha-methylacrylic acid nitrile ; Alpha-methylacrylonitrile ; Methacrylic acid nitrile ; Methacrylonitrile ; Isopropenyl cyanide ; 1-Methyl-1-cyanoethylene
Uses
Methylacrylonitrile (126-98-7) is an important raw material of organic synthetic,it makes methyl methacrylate by hydrolysis, esterification availability, and itself can be aggregated into a polymer material.
Toxicity Data With Reference
| 1. | eye-rbt 500 mg/24H MLD | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,901. | ||
| 2. | orl-rat LD50:120 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 29 (5)(1985),37. | ||
| 3. | orl-rbt LD50:16 mg/kg | GTPZAB Gigiena Truda i Professionalnye Zabolevaniia. Labor Hygiene and Occupational Diseases. 29 (5)(1985),37. | ||
| 4. | ihl-rat LC50:328 ppm/4H | AIHAAP American Industrial Hygiene Association Journal. 29 (1968),202. | ||
| 5. | orl-mus LDLo:15 mg/kg | SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd., San Romon, CA 94583) | ||
| 6. | ihl-mus LC50:36 ppm/4H | AIHAAP American Industrial Hygiene Association Journal. 29 (1968),202. | ||
| 7. | ipr-mus LDLo:15 mg/kg | JIHTAB Journal of Industrial Hygiene and Toxicology. 31 (1949),113. | ||
| 8. | ihl-rbt LC50:37 ppm/4H | AIHAAP American Industrial Hygiene Association Journal. 29 (1968),202. | ||
| 9. | skn-rbt LD50:320 mg/kg | AIHAAP American Industrial Hygiene Association Journal. 29 (1968),202. | ||
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Consensus Reports
EPA Extremely Hazardous Substances List. Cyanide and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.
Safety Profile
Poison by ingestion, inhalation, skin contact, and intraperitoneal routes. An eye irritant. A dangerous fire hazard when exposed to heat, flame, or sparks. When heated to decomposition it emits toxic fumes of NOx and CN−. See also NITRILES.
Hazard Codes:
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Risk Statements about Methylacrylonitrile (126-98-7):
R11 Highly flammable.
R43 May cause sensitization by skin contact.
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
Safety Statements about Methylacrylonitrile (126-98-7):
S9 Keep container in a well-ventilated place.
S16 Keep away from sources of ignition.
S18 Handle and open container with care.
S29 Do not empty into drains.
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
Standards and Recommendations
OSHA PEL: TWA 1 ppm (skin)
ACGIH TLV: TWA 1 ppm (skin)
DOT Classification: 3; Label: Flammable Liquid, Poison