| CAS
NO. |
98-73-7 |
|
| EINECS
NO. |
202-696-3 |
| FORMULA |
(CH3)3CC6H4COOH |
| MOL
WT. |
178.23 |
|
H.S.
CODE
|
|
|
TOXICITY
|
Oral rat
LD50: 473 mg/kg |
| SYNONYMS |
PTBBA;
p-Tert-butylbenzoic acid; |
| 对叔丁基苯甲酸;
4-(1,1-dimethylethyl)-Benzoic acid; Acide tert-butyl-4 benzoique;
|
| PRICE |
|
|
CLASSIFICATION
|
|
|
PHYSICAL AND CHEMICAL PROPERTIES
|
| PHYSICAL
STATE |
white
to tan flake |
|
MELTING
POINT
|
165 - 167
C |
| BOILING
POINT |
|
| SPECIFIC GRAVITY |
|
|
SOLUBILITY
IN WATER
|
Insoluble |
| pH |
|
| VAPOR DENSITY |
|
| AUTOIGNITION |
|
|
REFRACTIVE
INDEX
|
|
| NFPA RATINGS |
Health: 1; Flammability: 1; Reactivity: 0 |
| FLASH
POINT |
80
C |
| STABILITY |
Stable under ordinary
conditions |
|
APPLICATIONS
|
|
4-Tert-butylbenzoic
acid is addded as a stabilizer or modifier for alkyd resin and as
a corrosion inhibitor in cooling fluids. Because of the sterically
hindered group, tert-butyl aromatic compounds have an antioxidizing action and
also act as UV stabilizers. It is used as an intermediate of organic target
substances and also used as a fixative of fragrance. |
| SALES
SPECIFICATION |
|
APPEARANCE
|
white
to tan flake |
| ASSAY |
98.0%
min |
|
ASH
|
0.02%
max
|
|
Fe
|
3
ppm max
|
|
LOSS
ON DRYING
|
0.5%
max
|
|
MELTING
POINT
|
164 - 168
C |
| TRANSPORTATION |
| PACKING |
25kgs
in bag |
| HAZARD CLASS |
|
| UN
NO. |
|
| OTHER
INFORMATION |
|
Hazard
Symbols: XN, Risk Phrases: 22, Safety Phrases: 22/24/25/28A/37/45 |