What is the common name of 1/3-butadiene?
Butadiene
| Names | |
|---|---|
| Preferred IUPAC name Buta-1,3-diene | |
| Other names Biethylene Erythrene Divinyl Vinylethylene Bivinyl Butadiene | |
| Identifiers | |
| CAS Number | 106-99-0 |
What does butadiene do to the body?
In humans, inhalation of very high concentrations of 1,3-butadiene can result in CNS effects including lethargy, headache, drowsiness, fatigue, vertigo, ataxia, unconsciousness, coma, and respiratory depression and death.
What does butadiene mean?
Definition of butadiene : a flammable gaseous open chain hydrocarbon C4H6 used in making synthetic rubbers.
What is the structure of 1/4 butadiene?
NAMES AND IDENTIFIERS OF POLYMER
| POLYMER CLASS | Polydienes |
|---|---|
| STRUCTURE BASED NAME | Poly(but-2-ene-1,4-diyl) |
| ACRONYMS | PBD |
| CAS # | 9903-17-2 |
| CurlySMILES | C{-}C=CC{n+} |
Which form of 1/3-butadiene is more stable and why?
1,3-Butadiene has molecular structure CH2=CH-CH=CH2. It has a conjugated π-bond. Thus it is stabilized by resonance.
What are the side effects of exposure to 1/3-butadiene?
Acute high exposures may cause damage to the central nervous system or cause symptoms such as distorted blurred vision, vertigo, general tiredness, decreased blood pressure, headache, nausea, decreased pulse rate, and fainting. Chronic effects caused by exposure to 1,3-butadiene are controversial.
What is the STEL for butadiene?
Regulated area means any area where airborne concentrations of BD exceed or can reasonably be expected to exceed the 8-hour time weighted average (8-hr TWA) exposure of 1 ppm or the short-term exposure limit (STEL) of 5 ppm for 15 minutes. This section means this 1,3-butadiene standard.
How do you make chloroprene?
Chloroprene is produced in three steps from 1,3-butadiene: (i) chlorination, (ii) isomerization of part of the product stream, and (iii) dehydrochlorination of 3,4-dichlorobut-1-ene. Chlorine adds to 1,3-butadiene to afford a mixture of 3,4-dichlorobut-1-ene and 1,4-dichlorobut-2-ene.
What is butadiene used to manufacture?
The majority of the butadiene produced worldwide is used as a monomer or co-monomer in the manufacture of synthetic rubber, above all for styrene – butadiene rubber and latex (SBR), polybutadiene rubber (BR), acrylonitrile – butadiene rubber and latex (NBR), and for chloroprene rubber (CR).
What happens when 1/3-butadiene undergoes Diels Alder with ethylene?
There are a variety of reactions whereby rings are formed through addition to double or triple bonds. An especially simple example is the addition of ethene to 1,3-butadiene to give cyclohexene: This is the prototype Diels-Alder reaction, which has proved so valuable in synthesis that it won its discoverers, O.
What is the structure of 1/3-butadiene?
C4H6Butadiene / Formula
What is 1-3-butadiene?
Laboratory Chemical Safety Summary (LCSS) 1,3-Butadiene is a synthetic, colorless gas that is practically insoluble in water and soluble in ethanol, ether, acetone and benzene. It is used primarily as a monomer to manufacture many different types of polymers and copolymers and as a chemical intermediate in the production of industrial chemicals.
What is 1 3 butadiene used for?
(NCI05) 1,3-Butadiene is a chemical made from the processing of petroleum. It is the 36th highest volume chemical produced in the United States. It is a colorless gas with a mild gasoline-like odor. About 75% of the manufactured 1,3-butadiene is used to make synthetic rubber.
Is 1 3 butadiene toxic to humans?
Hazards Summary. Although 1,3-butadiene breaks down quickly in the atmosphere, it is usually found in ambient air at low levels in urban and suburban areas. Acute (short-term) exposure to 1,3-butadiene by inhalation in humans results in irritation of the eyes, nasal passages, throat, and lungs.
What is the background concentration of 1-3 butadiene in North America?
The results of several studies have reported the North American background concentration of 1,3-butadiene ranges from <0.02 to 0.10 ug/cu m (2). (1) Seila RL; Nonurban Hydrocarbon Concentrations in Ambient Air North of Houston. USEPA-500/3-79-010 p.38 (1979) (2) McCarthy MM et al; J Air Waste Mangae Assoc 56: 3-11 (2006)