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Isoprene

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Post Date:

Apr 23,2025

Expiry Date:

Oct 20,2025

Detailed Description:

Cas No. :78-75-9

Properties:	The product is colorless or light yellow transparent liquid. It is inflammable and explosive with specific gravity 0.6806; melting point –147.7℃; boiling point 34.1℃; flash point -53.89℃; spontaneous ignition :220℃; explosion limit (v/v) 1.5～9.7%. ?
Specifications:	Polymer-grade isoprene: Q/SH 012.11.03-1998 (Enterprise standard).
	No.	Item	Index	Testing Method
	1	Appearance	colourless or light colour, transparent, no mechanical admixture	Q/SH 012.11.03-1998
	2	Content %(m/m) >=	99.3
	3	Isoprene dimer %(m/m) <=	0.3
	4	Paraffins and monoene, %(m/m)?	balance
	5	Cyclo pentadiene, mg/kg <=	1
	6	Alkyne, mg/kg <=	50
	7	m-pentadiene, mg/kg <=	80
	8	DMF ¹⁾, mg/kg <=	10
	9	Sulphur, mg/kg <=	5	GB 6324.4
	10	Oxo-compound, mg/kg <=	10	GBB 6018
	11	Water, mg/kg <=	200	GB/T 6283
	12	TBC ²⁾, mg/kg <=	80－120	GB 6020
	Note: 1) DMF means N.N-dimethy /formamide
	2) TBC means tributyl citrate
	3) TBC can be adjusted as per client’s requirement
	Specification 2: chemical-grade isoprene: Q/SH 012.11.04-1998 (Enterprise Standard)
	No.	Item	Index	Testing Method
	1	Appearance	colourless or light colour transparent, no mechanical admixture	Q/SH 012.11.04-1998
	2	Content, %(m/m) >=	98	Q/SH 012.11.04-1998
	3	TBC ¹⁾ mg/kg?	80－120	GB 6020
	Note: 1) TBC means tributyl citrate
	2) TBC can be adjusted as per diment’s requirement
	??
Major Applications:	?Isoprene is a very important C₅ diene(s), and can be used to make, via polymerization, synthetic rubber, plastics and terpene’s compounds. It has typical conjugated double bond with reactive chemical nature, so that it can synthesize per?
Packing:	Bulk or 200L drum. ?
Storage:	Stored at low temperature, especially in summer, below 15℃, and well ventilated place, kept away from open fire, heat source and direct sunlight. The product is not suitable for long term storage due to its sensibility to polymerization, package should be sealed, better to fill it with N₂. to isolate the air. Stored separately from oxidizer or acid,. ?
Transportation:	As hazardous matters class I, the bulk can be handled by tank truck.. ?

CAS Registry Number:	78-75-9
Synonyms:	;2-Methyl-1,3-butadiene;
Molecular Formula:	C₅H₈
Molecular Weight:	68.12
Molecular Structure:
Hazard Symbols:	F+:Highly flammable; T:Toxic;
Risk Codes:	R12:; R45:; R52/53:; R68:;
Safety Description:	S45:; S53:; S61:;

Company:	Shanghai Shangyi Chemical Technology Co., Ltd [ China ]
Contact:	Steven Wu
Tel:	+86-21-56207799
Fax:	+86-21-33686276
Email:	info@shangyichem.com

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Isoprene

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78-75-9