para-tert.-Butylbenzoic Acid

Information pertaining to particular dangers for man and environment:
R 20/21/22 Harmful by inhalation, in contact with skin and if swallowed.
R 48/20/21/22 Harmful: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed.
R 62 Possible risk of impaired fertility.
R 51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.

Classification system for para-tert.-Butylbenzoic Acid (PTBBA):
The classification was made according to the latest editions of the EU-lists, and expanded using company data and specialized literature.

Additional information: Aqueous solutions of the substance are acidic.

Chemical characterization	for para-tert.-Butylbenzoic Acid (PTBBA), 4-tert-Butyl-1-Benzenecarboxylic Acid:
CAS No. Description:	98-73-7 4-tert-butylbenzoic acid
Identification number(s):
EINECS Number:	202-696-3

General Information for para-tert.-Butylbenzoic Acid (PTBBA), 4-tert-Butyl-1-Benzenecarboxylic Acid:
Form:	Flakes
Colour:	White
Odour:	Light, Aromatic
Change in condition
Melting point/Melting range:	166-167°C
Boiling point/Boiling range:	280°C, Decomposition
Flash point:	180°C
Ignition temperature:	> 510°C
Decomposition temperature:	> 280°C
Danger of explosion:	Product does not present an explosion hazard.
Vapour pressure at 20°C:	< 0.01 hPa
Density at 20°C:	0.6 g/cm³
Solubility in / Miscibility with Water at 20 °C:	0.3 g/l
pH-value at 20°C:	3.9 in saturated solution
· Segregation coefficient (n-octanol/water) at 21°C:	3.4 log POW

Land transport ADR/RID (cross-border) for para-tert.-Butylbenzoic Acid (PTBBA):
ADR/RID class:	9 (M7) Miscellaneous dangerous substances and articles.
Danger code (Kemler):	90
UN-Number:	3077
Packaging group:	III
Label:	9
Description of goods:	3077 ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (4-tert-butylbenzoic acid)
Remarks:	Limited Quantity:6 kg per inner packaging, 30 kg gross per packaging unit
Maritime transport IMDG:
IMDG Class:	9
UN Number:	3077
Label:	9
Packaging group::	III
EMS-Number:	F-A,S-F
Proper shipping name:	ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (4-tert-butylbenzoic acid)
Lufttransport ICAO-TI und IATA-DGR:
ICAO/IATA Class:	9
UN Number:	3077
Label:	9
Packaging group::	III
Proper shipping name:	ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (4-tert-butylbenzoic acid)

Markings according to EC guidelines for para-tert.-Butylbenzoic Acid (PTBBA):
The product has been classified and marked in accordance with EU Directives / Ordinance on Hazardous Materials

Risk phrases:
20/21/22 Harmful by inhalation, in contact with skin and if swallowed.
48/20/21/22 Harmful: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if
swallowed.
62 Possible risk of impaired fertility.
51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.

Safety phrases:
9 Keep container in a well-ventilated place.
36/37 Wear suitable protective clothing and gloves.
61 Avoid release to the environment. Refer to special instructions/safety data sheets.

National regulations:

Information about limitation of use:
Employment restrictions concerning pregnant and lactating women must be observed.
Restrictions on juvenile employment must be observed.

Water hazard class: Water danger class 3 (Self-assessment): extremely hazardous for water.