ICSC 1342 - MONONITROPHENOLS

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MONONITROPHENOLS	ICSC: 1342 (November 1998)
Nitrophenols (mixed isomers) Nitrophenols

CAS #: 25154-55-6

UN #: 1663

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air.	NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	Use water spray, powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Blue lips, fingernails and skin. Confusion. Convulsions. Cough. Dizziness. Headache. Nausea. Sore throat. Unconsciousness.	Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED!	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .
Eyes	Redness. Pain.	Wear 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 refer for medical attention.
Ingestion	Abdominal pain. Sore throat. Vomiting. See Inhalation.	Do not eat, drink, or smoke during work.	Rinse mouth. Rest. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Separated from combustible substances, reducing agents and food and feedstuffs. Dry. Well closed.
PACKAGING
Do not transport with food and feedstuffs.

MONONITROPHENOLS

ICSC: 1342

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOW CRYSTALS. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers May explode on heating. On combustion, forms nitrogen oxides. Decomposes on heating. This produces toxic fumes including nitrogen oxides. Reacts with strong oxidants.	Formula: C₆H₅O₃N Molecular mass: 139.1 Boiling point: 194-279°C Melting point: 44-116°C Density: 1.5 g/cm³ Solubility in water, g/100ml: 0.13-1.2 Vapour pressure, Pa at 20°C: 0.0032-7 Relative vapour density (air = 1): 4.81 Flash point: 169°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW CRYSTALS.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air.

Chemical dangers
May explode on heating. On combustion, forms nitrogen oxides. Decomposes on heating. This produces toxic fumes including nitrogen oxides. Reacts with strong oxidants.

Formula: C₆H₅O₃N
Molecular mass: 139.1
Boiling point: 194-279°C
Melting point: 44-116°C
Density: 1.5 g/cm³
Solubility in water, g/100ml: 0.13-1.2
Vapour pressure, Pa at 20°C: 0.0032-7
Relative vapour density (air = 1): 4.81
Flash point: 169°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

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

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is toxic to aquatic organisms. Avoid release to the environment in circumstances different to normal use.

NOTES
Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.

ADDITIONAL INFORMATION

EC Classification

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