Low Price for Liquid Isoprene Rubber CAS 78-79-5 Supplier in China
CERTIFICATE OF ANALYSIS
Item Name: China supply for Isoprene CAS 78-79-5
Other names:2-Methyl-1,3-butadiene; Isoprene (99%+)
CAS No:78-79-5
EINECS No:201-143-3
Formula:C5H8
Molecular Weight:68.12
NO |
Index name |
Polymerization Grade Isoprene |
Chemical Grade Isoprene |
Test method |
1 |
Appearance |
colorless or light color transparent without mechanical impurities |
|
|
2 |
Hazen ≤ |
30 |
100 |
GB/T3143-1982 |
3 |
Assay, % (m/m) ≥ |
99.5 |
98.5 |
Q/SH3045 039-2008 |
4 |
Isoprene dimer, % (m/m) ≤ |
0.20 |
---- |
|
5 |
Alkane and mono olefin, % (m/m) |
0.50 |
----- |
|
6 |
cyclopentadiene ,% mg/kg≤ |
0.00010 |
----- |
|
7 |
Alkyne, % mg/kg≤ |
0.0050 |
----- |
|
8 |
piperyene,% mg/kg≤ |
0.0080 |
------ |
|
9 |
MDF1, % mg/kg≤ |
0.0010 |
----- |
|
10 |
S, % mg/kg≤ |
0.00050 |
----- |
GB/T6324-2008or SH/T0689-2000 |
11 |
carbonyl compound,% mg/kg≤ |
0.0010 |
----- |
Q/SH3045 039-2008 |
12 |
Moisture ,% mg/kg≤ |
0.020 |
0.030 |
GB/T6283-2008 |
13 |
TBC, % mg/kg≤ |
0.0040-0.0200 |
----- |
GB/T6020-2008 |
|
Storage:Sealed, kept in cool and ventilating place, keep temperature below 15°C. Avoid direct light, fire and heat. Do not expose to air, the package should be filled with nitrogen. Do not mix with oxidant and acid.
| ||||
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Isoprene rubber IR-70
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