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NIOSH

para-tert-BUTYLPHENOL

ICSC: 0637

4-(1,1-Dimethylethyl)phenol
1-Hydroxy-4-tert-butylbenzene
C10H14O / HOC6H4C(CH3)3
Molecular mass: 150.2
ICSC # 0637 		CAS # 98-54-4
RTECS # SJ8925000
UN # 2430
April 10, 2000 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

•INHALATION Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest.
•SKIN Redness. Pain.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
•EYES Redness. Pain.
Safety goggles or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give one or two glasses of water to drink. Rest. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: A/P2 filter respirator for organic vapour and harmful dust. Do NOT let this chemical enter the environment.
Well closed.

Marine pollutant.
UN Hazard Class: 8
UN Packing Group: III
ICSC: 0637 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

para-tert-BUTYLPHENOL

ICSC: 0637

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
WHITE , HYGROSCOPIC FLAKES

PHYSICAL DANGERS:


CHEMICAL DANGERS:


OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK: 0.08 ppm, 0.5 mg/m3;
Peak limitation category: II(2);
skin absorption (H); sensitization of skin (Sh);
Pregnancy risk group: D;
(DFG 2006).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and through the skin.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is severely irritating to the eyes , the skin , and the respiratory tract . The substance may cause effects on the skin , resulting in depigmentation.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the liver , spleen , thyroid and nervous system , resulting in impaired functions .

PHYSICAL
PROPERTIES

Boiling point: 237°C
Melting point: 98°C
Density: 0.9
g/cm3
Solubility in water:
none
Vapour pressure, Pa at 50°C: 30
Flash point:
115°C o.c.
Octanol/water partition coefficient as log Pow: 2.4-3.4

ENVIRONMENTAL
DATA

The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish.

N O T E S

Depending on the degree of exposure, periodic medical examination is suggested.
Transport Emergency Card: TEC (R)-80GC4-II+III
Card has been partially updated in October 2005: see Occupational Exposure Limits,
Card has been partially updated in August 2007: see Ingestion First Aid, Occupational Exposure Limits.

ADDITIONAL INFORMATION



ICSC: 0637 para-tert-BUTYLPHENOL
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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