ICSC 0773 - p-TOLUENESULFONIC ACID (max. 5% sulfuric acid)

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p-TOLUENESULFONIC ACID (max. 5% sulfuric acid)	ICSC: 0773 (October 2006)
Toluene-4-sulfonic acid 4-Methylbenzenesulfonic acid p-Methylphenylsulfonic acid Tosic acid

CAS #: 104-15-4

UN #: 2585

EC Number: 203-180-0

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Use water spray, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Sore throat. Cough. Burning sensation. Laboured breathing. Shortness of breath.	Use local exhaust. Use breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.
Skin	Redness. Pain. Serious skin burns.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention.
Eyes	Redness. Pain. Burns.	Wear face shield or eye protection in combination with breathing protection.	Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.
Ingestion	Sore throat. Burning sensation in the throat and chest. Shock or collapse.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Sweep spilled substance into covered dry, plastic containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER Harmful if swallowed Causes severe skin burns and eye damage Harmful to aquatic life Transportation UN Classification UN Hazard Class: 8; UN Pack Group: III
STORAGE
Dry. Separated from strong bases and food and feedstuffs.
PACKAGING
Do not transport with food and feedstuffs.

p-TOLUENESULFONIC ACID (max. 5% sulfuric acid)

ICSC: 0773

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS HYGROSCOPIC FLAKES. Physical dangers Chemical dangers Decomposes on heating and on burning. This produces toxic and corrosive fumes including sulfur oxides. The substance is a strong acid. It reacts violently with bases and is corrosive. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).	Formula: C₇H₈O₃S / CH₃C₆H₄SO₃H Molecular mass: 172.2 Melting point: 106-107°C Relative density (water = 1): 1.24 Solubility in water, g/100ml at 25°C: 67 (freely soluble) Flash point: 184°C c.c. Octanol/water partition coefficient as log Pow: 0.9 (calculated)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS HYGROSCOPIC FLAKES.

Physical dangers

Chemical dangers
Decomposes on heating and on burning. This produces toxic and corrosive fumes including sulfur oxides. The substance is a strong acid. It reacts violently with bases and is corrosive. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).

Formula: C₇H₈O₃S / CH₃C₆H₄SO₃H
Molecular mass: 172.2
Melting point: 106-107°C
Relative density (water = 1): 1.24
Solubility in water, g/100ml at 25°C: 67 (freely soluble)
Flash point: 184°C c.c.
Octanol/water partition coefficient as log Pow: 0.9 (calculated)

EXPOSURE & HEALTH EFFECTS
Routes of exposure Serious local effects by all routes of exposure. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema. See Notes. Medical observation is indicated.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
Serious local effects by all routes of exposure.

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema. See Notes. Medical observation is indicated.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered. UN 2585 applies to p-toluenesulfonic acid with no more than 5% free sulfuric acid. UN 2583 applies to p-toluenesulfonic acid with more than 5% free sulfuric acid. Hydrated form has CAS number 6192-52-5.

NOTES

The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered.
UN 2585 applies to p-toluenesulfonic acid with no more than 5% free sulfuric acid.
UN 2583 applies to p-toluenesulfonic acid with more than 5% free sulfuric acid.
Hydrated form has CAS number 6192-52-5.

ADDITIONAL INFORMATION

EC Classification
Symbol: Xi; R: 36/37/38; S: (2)-26-37

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