Gas Data
MOLECULAR WEIGHT:	56.110
DENSITY:	2.307 kg/m3 @ 25ºC 101.325 kPa
DENSITY:	0.1440 lb/ft3 @ 77ºF, 14.696 psi
SPECIFIC VOLUME:	0.4334 m3/kg @ 25ºC 101.325 kPa
SPECIFIC VOLUME:	6.9436 ft3/lb @ 77ºF, 14.696 psi
VP @21.1C (kPa):	268.89
VP @70F (PSIA):	39.0

 

Safety Information
LFL IN AIR:	1.8%
UFL IN AIR:	9.6%

 

Shipping Information
CAS NUMBER:	115-11-7
I.D. NUMBER:	UN 1055
DOT PROPER NAME:	ISOBUTYLENE
TC PROPER NAME:	ISOBUTYLENE
HAZARD CLASS:	2.1
LABEL:	FLAMMABLE

 

Cylinder Specifications
Cylinder Size	Valve Outlet CGA No.	Pressure psig @ 70F	Pressure kPa @ 21.1C	Approximate Ship Weights
				lbs	kgs
1F	510	24.3	168	208	95
1A	510	24.3	168	172	78
2	510	24.3	168	90	41
3	510	24.3	168	46	21
4	510	24.3	168	24	11
LB	170	24.3	168	6	3

 

Gas Grade Purity Specifications
Gas Grade Purity Specifications	Product Code	Cylinder Size	Content		Equipment Recommendations	Model No.
			US	Metric
Isobutylene, Commercial Purity 99.0%	1055111F 1055111A 10551102 10551103 10551104 105511LB	1F 1A 2 3 4 LB	126 lbs 40 lbs 17 lbs 7 lbs 2 lbs 0.375 lbs	57.15 kg 18.14 kg 7.71 kg 3.18 kg 0.91 kg 170 gm	Single-Stage Reg. LB Regulator Personal Monitor Tee Purge Cylinder Valve Wrench	Series 1-510 Series 3320-170 IQ250 4753-510 TW-4
	A certificate of conformance will be provided on request.