Methacrylonitrilesolution , Soluble 1000 μg/ml (methanol solution) in a methanol solution , 126-98-7
CAS NO.：126-98-7
Empirical Formula: C4H5N
Molecular Weight: 67.09
MDL number: MFCD00001872
EINECS: 204-817-5
PRODUCT Properties
| Melting point: | −35.8 °C(lit.) |
| Boiling point: | 90-92 °C(lit.) |
| Density | 0.8 g/mL at 25 °C(lit.) |
| vapor pressure | 64 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 54 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform, Ethyl Acetate (Slightly), Methanol (Slightly) |
| form | Colorless liquid |
| color | Colourless |
| Odor Threshold | 3ppm |
| Water Solubility | 2.57 g/100 mL (20 ºC) |
| Merck | 13,5968 |
| Exposure limits | TLV-TWA skin 2.7 mg/m3 (1 ppm) (ACGIH). |
| LogP | 0.76 |
| CAS DataBase Reference | 126-98-7(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Propenenitrile, 2-methyl-(126-98-7) |
| EPA Substance Registry System | Methacrylonitrile (126-98-7) |
Description and Uses
Methylacrylonitrile is a colorless liquid with an odor like bitter almonds. Odor threshold= 7.0 ppm. It is reported that methacrylonitrile cannot be detected by its smell even at concentrations which are already dangerous for humans. Hence, special attention must be given to ventilation and estimations of the amount of poison present and must be carried out frequently. Molecular weight= 67.10; Specific gravity (H2O:1)= 0.80;Boiling point=90.6℃; Freezing/Melting point=35.8℃; Vapor pressure= 71 mmHg at 25℃; Flash point=1.1℃ (cc). Explosive limits: LEL= 2%; UEL= 6.8%. Hazard Identification (based on NFPA-704 M Rating System): Health 2, Flammability 3, Reactivity 2. Slightly soluble in water; solubility in water=3%.
Methylacrylonitrile is used to make coating and elastomers and as an intermediate in the preparation of acids, amine, amides, and esters.
Safety
| Symbol(GHS) |   GHS02,GHS06 |
| Signal word | Danger |
| Hazard statements | H225-H301-H311-H317-H331 |
| Precautionary statements | P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501-P264-P270-P301+P310-P321-P330-P405-P501-P280-P302+P352-P312-P322-P361-P363-P405-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P261-P271-P304+P340-P311-P321-P403+P233-P405-P501 |
| Hazard Codes | F,T |
| Risk Statements | 11-23/24/25-43 |
| Safety Statements | 9-16-18-29-45 |
| RIDADR | UN 3079 3/PG 1 |
| OEB | B |
| OEL | TWA: 1 ppm (3 mg/m3) [skin] |
| WGK Germany | 1 |
| RTECS | UD1400000 |
| HazardClass | 3.1 |
| PackingGroup | I |
| HS Code | 29269095 |
| Hazardous Substances Data | 126-98-7(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 0.25 ml/kg (Smyth) |
| IDLA | 4.0 ppm |
