Chemistry Reference
In-Depth Information
(
Continued
)
Sorbitans
SPAN 60
R
=
(CH
2
)16CH
3
SPAN 80
R
=
(CH
2
)7(CHCH)
(CH
2
)7CH
3
SPAN 65
R
=
(CH
2
)16CH
3
SPAN 85
(CH
2
)7(CHCH)
(CH
2
)7CH
3
R
=
Synonyms
SPAN
10
5
mol/l for
Critical micelle concentration
(CMC)
(2.2
±
0.2)
×
SPAN 20
Solubility
Insoluble in water
Grade
MW (g/mol)
T
g
or
T
m
(
C)
°
SPAN 20
346.46
14
-
16
SPAN 40
402.57
46
-
47
SPAN 60
430.6
54
-
57
SPAN 65
963.54
55
-
57
SPAN 80
428.61
10
12
∼
SPAN 85
957.49
10
D
-
α
-Tocopheryl Polyethylene Glycol 1000 Succinate
Structure
COO(CH
2
CH
2
O)
n
H
CH
2
CH
2
CH
3
O
n
=
23
O
CH
3
H
CH
3
H
CH
3
O
CH
3
CH
3
CH
3
CH
3
Synonyms
TPGS
Critical micelle concentration (CMC)
0.02 w% at 37
°
C
Solubility
Water soluble (
20% at 20
C)
∼
°
Other properties
MW:
1513 g/mol
∼
