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2-Methyl-1,3-butadiene

Inquiry
  Post Date: Feb 14,2017
  Expiry Date: Aug 13,2017
  Detailed Description: Cas No. :78-79-5 Quantity: 1000Metric Tons
Specs:Purity: 99.5%mIN.
Price:1500-2000 USD Metric Tons
Payment Method: T/T or L/C at sight
Polyisoprene

Molecular formula: C5H8
Molecular/Structural formula:C5H8/H2C=C(CH3)CH=CH2
CAS: 9003-31-0;138009-59-3
Molecular Weight: 68.12
HS Code: 2901242000


Specification:
No.Item Specification Test Method
1.Appearancecolorless or light color transparent without mechanical impurities

2.Assay, wt.ppm 99.5 GC
3.Isoprene dimer, wt.ppm 3000 GC
4.Alkane and mono olefin, wt.ppm residue GC
5.cyclopentadiene , wt.ppm 15 GC
6.Alkyne, wt.ppm 50 GC
7.piperyene, wt.ppm 80 GC
8.MDF, wt.ppm 10 GC
9.S, wt.ppm 5 GB 6324.4
10.carbonyl compound, wt.ppm 10 GB 6324.5
11.Moisture, wt.ppm 200 GB/T 6283
12.TBC, wt.ppm 20-150 GB 6020

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  CAS Registry Number:

78-79-5
  Synonyms: ;2-Methyl-1,3-butadiene;
  Molecular Formula: C5H8
  Molecular Weight: 68.12
  Molecular Structure: 78-79-5 Isoprene
  Hazard Symbols:  F+:Highly flammable;
 T:Toxic;
  Risk Codes: R12:;
R45:;
R52/53:;
R68:;
  Safety Description: S45:;
S53:;
S61:;

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