Product Identification

Product Name

3-Amino-2-naphthoic acid

Synonyms

3-Amino-2-naphthalenecarboxylic acid
3-Aminoisonaphthoic acid

CAS

5959-52-4

Formula

C11H9NO2

Molecular Weight

187.2

EINECS

227-726-2

RTECS

QL1400000

RTECS Class

Other

Merck

13,451

Beilstein/Gmelin

744099

Beilstein Reference

3-14-00-01341

Physical and Chemical Properties

Appearance

Yellow - green powder.

Solubility in water

Soluble

Melting Point

216 - 217

Boiling Point

383

pKa/pKb

5.02 (pKa)

Partition Coefficient

1.79

Usage

Substance is used in the determination of copper, nickel, cobalt.

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

Harmful if swallowed. May cause irritation of the digestive tract.

Inhalation

May cause respiratory tract irritation. May be harmful if inhaled.

Skin

May cause skin irritation. May be harmful if absorbed through the skin.

Eyes

May cause eye irritation.

EC Risk Phrase

R 22

EC Safety Phrase

S 22 36/37

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Poison Class

4

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Neutralize spill with sodium bicarbonate.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.