Diethylzinc (ca. 17% in Hexane, ca. 1mol/L) , 557-20-0
Synonym(s):
DEZ;DEZn;Et2Zn;Zincdiethyl
CAS NO.：557-20-0
Empirical Formula: C4H10Zn
Molecular Weight: 123.51
MDL number: MFCD00009021
EINECS: 209-161-3
PRODUCT Properties
| Melting point: | −28 °C(lit.) |
| Boiling point: | 98 °C |
| Density | 1.205 g/mL at 25 °C(lit.) |
| vapor pressure | 16hPa at 20℃ |
| refractive index | n |
| Flash point: | 45 °F |
| storage temp. | 0-6°C |
| solubility | reacts with H2O; msc ethyl ether,petroleum ether, benzene |
| form | Solution |
| color | Slightly turbid light brown-gray |
| Specific Gravity | 0.740 |
| Water Solubility | REACTS VIOLENTLY |
| Sensitive | Air & Moisture Sensitive |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| Merck | 14,3131 |
| BRN | 3587207 |
| Dielectric constant | 2.5（20℃） |
| CAS DataBase Reference | 557-20-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Diethylzinc(557-20-0) |
| EPA Substance Registry System | Zinc, diethyl- (557-20-0) |
Description and Uses
Diethyl zinc is an organometal compound and is a dangerous fire hazard. It spontaneously ignites in air and reacts violently with water, releasing flammable vapors and heat. It is a colorless, pyrophoric liquid with a specific gravity of 1.2, which is heavier than water, so it will sink to the bottom. It decomposes explosively at 248°F (120°C). It has a boiling point of 243°F (117°C), a flash point of ?20°F (?28°C), and a melting point of ?18°F (?27°C). The four-digit UN identification number is 1366. The NFPA 704 designation is health 3, flammability 4, and reactivity 3. The white space at the bottom of the diamond has a W with a slash through it to indicate water reactivity. Primary uses of diethyl zinc are in the polymerization of olefins, high-energy aircraft, and missile fuel and in the production of ethyl mercuric chloride.
Diethyl zinc is used in organic synthesis. It isalso used in preservation of archival papers.
Safety
| Symbol(GHS) |      GHS02,GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H225-H250-H260-H304-H314-H336-H361d-H373-H411 |
| Precautionary statements | P210-P231+P232-P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338-P370+P378 |
| Hazard Codes | F,Xn,N,C |
| Risk Statements | 14-17-34-50/53-67-65-62-48/20-11-51/53-14/15-63 |
| Safety Statements | 26-45-61-62-8-36/37/39-16-60-43 |
| RIDADR | UN 3399 4.3/PG 1 |
| WGK Germany | 2 |
| RTECS | ZH2077777 |
| F | 10-23 |
| TSCA | Yes |
| HazardClass | 4.3 |
| PackingGroup | I |
| HS Code | 29319090 |
| Hazardous Substances Data | 557-20-0(Hazardous Substances Data) |
