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Product Name: Industrial Butadiene  
Trade Mark: Sanren Brand  
Alternative Name: ?  
Molecular formula/Structural Formula:
Production Process: Using pyrolysis C4 fraction as raw material and dimethylformamide as solvent, the product is obtained by extractive rectification process (DMF Method).  
Properties: Under the normal temperature, the product is a colourless gas, not soluble in water but in organic solvent. With active chemical properties, the product tends to auto-polymerization, therefore, polymerization inhibitor(TBC) is added to it during the process of production. The explosion limits is between 2.0~12.0 Vol.%.  
Grade: ?  
National Standard Grade: ?  
Enterprise Standard Grade: ?  
Specifications:

Q/SH012.01.13-1994(Enterprise Standard)

No.

Item

Quality Criteria

Testing Method

Premium Grade

1st-grade

1

Appearance

 

Colourless,transparent,without

 

suspended substance

2

1,3-butadiene % (m/m)

>=

99.3

98.0

Note 1

3

Alkynes:

Total alkynes mg/kg

Vinyl acetylene mg/kg

 

<=

<=

 

40

5

 

100

--

 

 

 

4

Butadiene dimer (calculated as vinlyl

cyclohexene) mg/kg

 

<=

1000

 

 

 

5

Oxo-compound (as acetaldehyde)mg/kg

<=

10

20

 

6

Water mg/kg

<=

20

500

 

7

Inhibitor(TBC) mg/kg

<=

50---150

 

8

Peroxidate (as H2O2) mg/kg

<=

10

 

9

Gas phase Oxygen content % (v/v)

<=

0.3

 

10

Dimethylformamide (as NH3 ) mg/kg

<=

3

Annex A

11

Dimethylamine (as NH3 ) mg/kg

<=

2

Note 2

  Note 1: 1.3 butadiene content [%)m/n)] is calculated as follows: 100%~all impurities (except the gas phase oxygen content).

Note 2:the value listed for Dimethylamine(DMA) is calculated as follows: DMA content=(DMF+DMA) measured via Annex B_DMF measured via Annes A(all calculated as NH3).

 
Scope of Application: ?  
Major Applications: The product has a high purity. It can be used to produce cis-1,4-polybutadiene rubber、styrene-butadiene rubber 、ABS resin and Nylon 66 etc. 
Process Method: ?  
Packing: Bulk  
Packing Size: ?  
Storage: Spherical tank  
Transportation: Rail tanker、tank truck、special vessel or pipe transfer.  
Safety Precautions: 1.Butadiene is an inflammable and explosive gas. Whether in stock or transportation, safety precautions against fire and explosion must be taken. Besides, dutadiene tends to polymerization, polymerization inhibitor must be added to it when in stock.
2.Special tank truck must be used for transportation of butadiene. In compliance with the relevant Government Ordinance concerning hazardous chemicals, due formalities must be gone through for the permission of transportation. Static electricity discharger and fire-fighting device must be provided.
3.Butadiene must be kept away from fire、heat sources and sunlight. In order to prevent the formation of peroxide, the product must be isolated from air. Meanwhile, pay attention to storage temperature so as to avoid thermal polymerization.  
SPC

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