Table 2. Vapor pressure and response ratio between low pressure and high pressure of organotins and organic acids.

Compounda	VPb, Pa	Lp/Hpc	Compounds	VPd, Pa	Lp/Hpe
MBTEt3	22.9	1.44	Acetic acid	1520	~1
DBTEt2	2.42	1.50	Propionic acid	1330	~1
TBTEt	0.256	2.00	Butyric acid	100	~1
MPhTEt3	0.411	2.41	Pentanoic acid	19	~1
DPhTEt2	0.0247	5.69	Hexanoic acid	2.51	~1
TPhTEt	0.0002	8.73	Heptanoic acid	0.59	~1

^a: MBT, Monobutyltin; DBT; Dibutyltin; TBT; Tributyltin; MPhT, Monophenyltin; DPhT, Diphenyltin; TPhT, Triphenyltin; Et; Ethyl-.

^b: Vapor pressure, obtained from ref 32

^c: Lp/Hp, response ratio of low pressure and high pressure, data in ref. 32

^d: Vapor pressure obtained from NIST (http://srdata.nist.gov/gateway/)

^e: This study.