Dimethylzinc

95.45

93.976097

208-884-1

8H6R0N8W2F

1370

DTXSID5060271

COLORLESS LIQUID|MOBILE LIQ

2931900090

0

1.16510

Mobile liquid, with peculiar garlic odor.

1.386 g/cm³ @ Temp: 10.5 °C

-40 °C

46 °C

30 °F

SOL IN ETHER, MISCIBLE WITH HYDROCARBONS

0-6ºC

vapor pressure = 376 mm Hg @ 25 deg C

Saturated vapor density= 0.10090 lb/cu ft @ 70 deg C

DECOMP IN COLD WATER, ALC|DECOMP IN ACIDS|Liquid heat capacity= 0.460 Btu/lb-F @ 70 °C|Liquid thermal conductivity= 1.129 Btu-inch/hr-sq ft-F at 70 °C

Highly flammable. Ignites in air and burns with a blue flame giving off a peculiar garlicky odor. Explodes in oxygen or ozone. Reacts violently with water to generate methane [Merck, 11th ed., 1989; Brauer(1965)]. Very slow oxidation with traces of air to give methylzinc methylate.

Metal Hydrides, Metal Alkyls, Metal Aryls, and Silanes

Strong Reducing Agent

DIMETHYLZINC is very reactive, acts as a strong reducing agent. Combines with acids, with alcohols (methanol, ethanol), and 2-2-dichloropropane as well as with water with explosive violence. When heated to decomposition emits toxic fumes of zinc oxide [Bretherick, 5th ed., 1995, p. 354]. Oxidants may yield peroxide formation, which is explosive.

0 °F (USCG, 1999)|BELOW 0 °F

134.9 BTU/LB= 74.95 CAL/G= 3.138X10+5 J/KG

I

4.2

UN 3399 4.3/PG 2

2

11-34-50/53-65-67-63-48/20-17-14/15

S26-S45-S61-S62-S60-S43-S36/37/39-S33-S29-S16

F,C,N

STABLE IN SEALED TUBE AND UNDER CARBON DIOXIDE

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, P501

H250

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 SPONTANEOUSLY WITH AIR OR OXYGEN & VIOLENTLY WITH WATER, EVOLVING METHANE.|Explodes in an oxygen atmosphere. Explosive reaction on contact with water; 2,2-dichloropropane.

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 DIMETHYL ZINC (7 total), please visit the HSDB record page.

UN 3399 4.3/PG 2

Special Hazards of Combustion Products: Smoke contains zinc oxide, which can irritate lungs and cause metal fume fever. Behavior in Fire: Reacts spontaneously with air or oxygen and violently with water, evolving methane. Contact with water applied to adjacent fires will intensify fire. (USCG, 1999)|Flammable - 3rd degree, Reactive - 2nd degree

|Danger|H225 (27.94%): 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 136 companies from 5 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|H225: Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P222, P233, P240, P241, P242, P243, P260, P261, P264, P271, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P370+P378, P403+P233, P403+P235, 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)|PERSONAL PROTECTION: CARTRIDGE-TYPE OR FRESH AIR MASK FOR FUMES OR SMOKE: POLYVINYL CHLORIDE FIRE-RETARDANT ... GLOVES: FULL SHIELD, SAFETY GLASSES, OR GOGGLES; FIRE-RETARDANT COVERALLS AS STANDARD WEAR; FOR SPECIAL CASES ... ASBESTOS COAT OR RAIN SUIT.

... Ignites in air (owing to peroxide formation) ...

EXTINGUISH WITH DRY GRAPHITE, SODA ASH, OR OTHER INERT POWDER. DO NOT USE WATER, FOAM, CARBON DIOXIDE, DRY CHEMICALS, OR VAPORIZING LIQ ON FIRE.

CONTACT WITH WATER APPLIED TO ADJACENT FIRES WILL INTENSIFY FIRE.

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 DIMETHYL 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.

Inhalation of mist or vapor causes immediate irritation of upper respiratory tract. 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. Eyes are immediately and severely irritated by liquid, vapor, or dilute solutions. If not removed by thorough flushing with water, chemical may permanently damage cornea. Skin will undergo thermal and acid burns when chemical reacts with moisture in skin. Unless washed quickly, skin may be scarred. Treat dilute solutions with same precautions as concentrated liquid. Ingestion, while unlikely, would cause immediate burns at site of contact. Nausea, vomiting, cramps, and diarrhea may follow. Tissues may ulcerate if not treated. (USCG, 1999)

INHALATION: highly unlikely, as liquid or vapor either ignites spontaneously or reacts with moisture to form methane and zinc oxide. Move victim to clean air and administer mouth-to-mouth resuscitation if breathing has ceased; give oxygen only when authorized by physician; keep victim warm and comfortable; call physician immediately. EYES: immediately flush with large amounts of water for at least 15 min., holding eyelids apart to insure thorough irrigation; use oils or ointments only when directed by physician, and do not attempt to neutralize with chemicals; get medical attention as soon as possible. SKIN: immediately flush affected area with large volumes of water; do not attempt to neutralize with chemicals; get medical attention if irritation persists. INGESTION: highly unlikely, as liquid or vapor either ignites spontaneously or reacts with moisture to form methane and zinc oxide. Do NOT induce vomiting; immediately dilute material by giving large amounts of water or milk; if vomiting occurs, give more fluids; when vomiting ceases, milk or olive oil may be given for their soothing effect; get medical attention. (USCG, 1999)

INHALATION OF MIST OR VAPOR CAUSES IMMEDIATE IRRITATION OF UPPER RESP TRACT. 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).|EYES ARE IMMEDIATELY & SEVERELY IRRITATED BY LIQ, VAPOR, OR DILUTE SOLN. IF NOT REMOVED BY THOROUGH FLUSHING WITH WATER, CHEMICAL MAY PERMANENTLY DAMAGE CORNEA. SKIN WILL UNDERGO THERMAL & ACID BURNS WHEN CHEMICAL REACTS WITH MOISTURE IN SKIN. UNLESS WASHED QUICKLY, SKIN MAY BE SCARRED.|INGESTION ... WOULD CAUSE IMMEDIATE BURNS @ SITE OF CONTACT. NAUSEA, VOMITING, CRAMPS, & DIARRHEA MAY FOLLOW. TISSUES MAY ULCERATE IF NOT TREATED.

dimethylzinc

GRADES OR PURITY: TECHNICAL; ELECTRONIC.

Zinc, dimethyl-: ACTIVE

Fire Hazards -> Flammable - 3rd degree, Reactive - 2nd degree