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Diethylzinc

Diethylzinc structure

Diethylzinc 

structure

Description

Clear colorless solution


Diethylzinc (C2H5)2Zn, or DEZ, is a highly pyrophoric organozinc compound consisting of a zinc center bound to two ethyl groups. This colourless liquid is an important reagent in organic chemistry and available commercially as a solution in hexanes, heptane, or toluene.


Diethylzinc is a pyrophoric liquid with a garlic-like odor. It is stable when it is shipped in sealed tubes with carbon dioxide. It may decompose violently in water and ignite spontaneously with air. It is toxic by ingestion. If exposed to heat or flame, containers of this material may explode. It is used as an aircraft fuel.|Liquid


Diethylzinc is a pyrophoric liquid with a garlic-like odor. It is stable when it is shipped in sealed tubes with carbon dioxide. It may decompose violently in water and ignite spontaneously with air. It is toxic by ingestion. If exposed to heat or flame, containers of this material may explode. It is used as an aircraft fuel.|Diethylzinc is a dialkylzinc compound.

Diethylzinc Basic Attributes

123.504

122.007393

209-161-3

S0W5NQH7C6

1366

DTXSID4052217

MOBILE LIQUID|COLORLESS LIQUID

29319090

Characteristics

0

1.94530

Diethylzinc is a pyrophoric liquid with a garlic-like odor. It is stable when it is shipped in sealed tubes with carbon dioxide. It may decompose violently in water and ignite spontaneously with air. It is toxic by ingestion. If exposed to heat or flame, containers of this material may explode. It is used as an aircraft fuel.

1.2065 g/cm3 @ Temp: 20 °C

-28 °C

118 °C

45 °F

n20/D 1.498(lit.)

H2O: REACTS VIOLENTLY.MISCIBLE WITH ETHER, PETROLEUM ETHER, BENZENE, HYDROCARBONS

Store in a cool, dry, well-ventilated location. Separate from air, water, oxidizing materials, organic peroxides, flammable materials. Keep material under carbon dioxide, nitrogen, or other inert gas.

20.8 mm Hg @ 25 deg C

If exposed to heat or flame, containers of this material may explode.

Garlic-like odor

DECOMP IN COLD WATER|Liquid heat capacity= 0.400 Btu/lb-F @ 70 °C|Liquid thermal conductivity= 1.129 Btu-in/hr-sq ft-F at 70 °C|Saturated vapor pressure= 0.309 lb/sq in @ 70 °C

Highly flammable. Ignites in air with a blue flame giving off a peculiar garlic-like odor, [Merck, 11th ed., 1989]. Diethyl zinc is spontaneously flammable in air, [Douda(1966)]. Reacts violently with water to form flammable ethane gas, [Brauer(1965)].

Metal Hydrides, Metal Alkyls, Metal Aryls, and Silanes

Strong Reducing Agent

DIETHYLZINC is pyrophoric in air, it ignites instantaneously. It reacts explosively with alcohols (methanol, ethanol), bromine, chlorine or liquefied sulfur dioxide [Houben-Weyl, 1973, 13.2a, p. 855, 757, 709]. Reaction with water, nitro compounds, arsenic trichloride, phosphorus trichloride is violent [Bretherick, 5th ed., 1995, p. 587].

0 °F (USCG, 1999)

-11,700 Btu/lb= -6,495 cal/g= -272X10+5 J/kg

120 BTU/LB= 68 CAL/G= 2.8X10+5 J/KG

Safety Information

I

4.3

UN 3399 4.3/PG 1

2

R11;R14;R17;R34;R48/20;R50/53;R62;R65;R67

S26-S45-S61-S62-S8-S36/37/39-S16-S60-S43

ZH2077777

F:Flammable;C:Corrosive;N:Dangerousfortheenvironment;

STABLE IN SEALED TUBE & CARBON DIOXIDE

P210-P231 + P232-P280-P305 + P351 + P338-P370 + P378-P422

H250-H260-H314-H410

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Reacts violently with bromine, water, nitro compounds. ... Reacts violently with nonmetal halides (e.g., arsenic trichloride or phosphorus trichloride to produce pyrophoric triethyl arsine or triethyl phosphine).|Reacts violently /with water/ to form flammable ethane gas.|Diethyl zinc and ethyl sodium react with water to produce ethane, a very flammable gas.|Ignition occurs on contact with chlorine.|For more Hazardous Reactivities and Incompatibilities (Complete) data for DIETHYL ZINC (11 total), please visit the HSDB record page.

Roychowdhury M. A Review of Safety and Health Hazards of Metalorganic Compounds. Am Ind Hyg Assoc J 54 (10): 607-14 (1992) Hazards specific to the most highly pyrophoric metalorganics such as ... dimethyl and diethyl zinc ... were reviewed.|Zinc and Health. Current Bibliographies in Medicine 98-3. Public Services Division/National Library of Medicine. 3619 citations January, 1990-June, 1998. Available from: http://www.nlm.nih.gov/archive/20040831/pubs/cbm/zinc.html as of November 2, 1998.|USEPA; Ambient Water Quality Criteria Doc: Zinc (1980) EPA 400/5-80-079|USEPA; Ambient Water Quality Criteria Doc: Zinc (1987) EPA 400/5-87-003|For more Special Reports (Complete) data for DIETHYL ZINC (7 total), please visit the HSDB record page.

UN 1366/3394

P210; P231 + P232; P280; P305 + P351 + P338; P370 + P378; P422

Special Hazards of Combustion Products: Yields zinc oxide fumes when burning; can cause ``metal fume fever'' (see 5.2) Behavior in Fire: Reacts spontaneously with air or oxygen, and violently with water, evolving flammable ethane gas. Contact with water applied to adjacent fires will intensify the fire. (USCG, 1999)|Flammable - 4th degree, Reactive - 3rd degree

|Danger|H225 (25.48%): Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P222, P223, P231+P232, P233, P240, P241, P242, P243, P260, P264, P273, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P335+P334, P363, P370+P378, P391, P402+P404, P403+P235, P405, P422, and P501|Aggregated GHS information provided by 208 companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H250: Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids; Pyrophoric solids]|P210, P222, P223, P231+P232, P260, P264, P273, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P335+P334, P363, P370+P378, P391, P402+P404, P405, P422, and P501

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk. SMALL SPILL: EXCEPTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)

Cartridge-type or fresh air mask for fumes or smoke; PVC fire-retardant or asbestos gloves; full face shield, safety glasses, or goggles; fire-retardant coveralls as standard wear; for special cases, use asbestos coat or rain suit. (USCG, 1999)|IN FIRE CONDITIONS WEAR FULL PROTECTIVE CLOTHING AND SELF-CONTAINED BREATHING APPARATUS.|Wear appropriate chemical protective gloves, boots, and goggles.

IGNITES IN ... CHLORINE.|Ignites in air. ...

If exposed to heat or flame, containers of this material may explode.

DO NOT USE WATER. USE DRY CHEM TO EXTINGUISH FIRE. WHERE ACCESS TO THE AREA IS STRICTLY CONTROLLED, IT MAY BE BEST TO ALLOW THE RELEASE TO BURN SPONTANEOUSLY. FIGHT FIRE FROM PROTECTED LOCATION OR MAXIMUM POSSIBLE DISTANCE.|If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Do not use water on material itself. Use graphite, soda ash or powdered sodium chloride. If fire becomes uncontrollable or container is exposed to direct flame-consider evacuation of one-third mile radius.

If material not on fire and not involved in fire: Do not use water on material itself. Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep material dry. Avoid breathing vapors. Do not handle broken packages without protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. Approach fire with caution. If material leaking (not on fire) consider evacuation from downwind area based on amount of material spilled, location and weather conditions.|SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Fire or Explosion: Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Health: Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Stay upwind. Keep unauthorized personnel away. Keep out of low areas.|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection.|For more DOT Emergency Guidelines (Complete) data for DIETHYL ZINC (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

HAZARD WARNING: INHALATION OF MIST OR VAPOR CAUSES IMMEDIATE IRRITATION OF UPPER RESP TRACT.... EYES ARE IMMEDIATELY & SEVERELY IRRITATED BY LIQ, VAPOR, OR DILUTE SOLN.... SKIN WILL UNDERGO THERMAL & ACID BURNS WHEN CHEMICAL REACTS WITH MOISTURE IN SKIN.

| 3 - Materials that, under emergency conditions, can cause serious or permanent injury.| 4 - Materials that rapidly or completely vaporize at atmospheric pressure and normal ambient temperature or that are readily dispersed in air and burn readily.| 3 - Materials that in themselves are capable of detonation or explosive decomposition or explosive reaction but that require a strong initiating source or must be heated under confinement before initiation.

Drug Information

Inhalation of mist or vapor causes immediate irritation of nose and throat; excessive or prolonged inhalation of fumes from ignition or decomposition may cause ``metal fume fever'' (sore throat, headache, fever, chills, nausea, vomiting, muscular aches, perspiration, constricting sensation in lungs, weakness, sometimes prostration); symptoms usually last 12-24 hrs., with complete recovery in 24-48 hrs. Eyes are immediately and severely irritated on contact with liquid, vapor, or dilute solution; without thorough irrigation, cornea may be permanently damaged. Moisture in skin combines with chemical to cause thermal and acid burns; tissue may be scarred without prompt treatment. Ingestion is unlikely but would cause immediate burns at site of contact; pain, nausea, vomiting, cramps, and diarrhea may follow; if untreated, tissue may become ulcerated. (USCG, 1999)

INHALATION: move victim to fresh air and call doctor immediately; give mouth-to-mouth resuscitation if needed; keep victim warm and comfortable; oxygen should be given only by experienced person, and only on doctor's instructions. EYES: flush with large amounts of running water for at least 15 min., holding eyelids apart to insure thorough washing; get medical attention as soon as possible; do not use chemical neutralizers, and avoid oils or ointments unless prescribed by doctor. SKIN: flush affected area with large amounts of water, do not use chemical neutralizers; get medical attention if irritation persists. INGESTION: do NOT induce vomiting; have victim drink large amounts of water or milk immediately; if vomiting occurs, give more fluids; get medical attention. (USCG, 1999)

INHALATION OF MIST OR VAPOR CAUSES IMMEDIATE IRRITATION OF NOSE & THROAT; EXCESSIVE OR PROLONGED INHALATION OF FUMES FROM IGNITION OR DECOMP MAY CAUSE "METAL FUME FEVER" (SORE THROAT, HEADACHE, FEVER, CHILLS, NAUSEA, VOMITING, MUSCULAR ACHES, PERSPIRATION, CONSTRICTING SENSATION IN LUNG, WEAKNESS ... PROSTRATION) ... SYMPTOMX USUALLY LAST 12-24 HR, WITH COMPLETE RECOVERY IN 24-48 HR. EYES ARE IMMEDIATELY & SEVERELY IRRITATED ON CONTACT WITH LIQ, VAPOR, OR DILUTE SOLUTION; WITHOUT THOROUGH IRRIGATION, CORNEA MAY BE PERMANENTLY DAMAGED. MOISTURE IN SKIN COMBINES WITH CHEMICAL TO CAUSE THERMAL AND ACID BURNS; TISSUE MAY BE SCARRED WITHOUT PROMPT TREATMENT. INGESTION IS UNLIKELY BUT WOULD CAUSE IMMEDIATE BURNS AT SITE OF CONTACT, PAIN, NAUSEA, VOMITING, CRAMPS, AND DIARRHEA MAY FOLLOW; IF UNTREATED, TISSUE MAY BECOME ULCERATED.

diethylzinc

Diethylzinc Use and Manufacturing

Methods of Manufacturing

BY INTERACTION OF ZINC & ETHYL IODIDE.|... By interaction of zinc chloride with triethyl aluminum.

Uses

In organic synthesis; in preservation on archival papers. Diethyl zinc is used in organic synthesis. It isalso used in preservation of archival papers.


Intermediates

Grade: Technical

Computer and electronic product manufacturing|Zinc, diethyl-: ACTIVE|Frankland prepared diethylzinc in 1849 and is generally recognized as the first to synthesize an organometallic cmpd.

Fire Hazards -> Flammable - 4th degree, Reactive - 3rd degree

Computed Properties

Molecular Weight:123.5
Hydrogen Bond Acceptor Count:2
Exact Mass:122.007392
Monoisotopic Mass:122.007392
Heavy Atom Count:5
Complexity:3.6
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

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