Product Identification

Product Name

3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonephthalein tetrasodium salt

Synonyms

Glycine, N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-, S,S-dioxide, tetrasodium salt
Tetrasodium 2-[[5-[7-[3-[(bis(carboxylatomethyl)amino)methyl]-4-hydroxy-5-methyl-phenyl]-8,8-dioxo-9-oxa-8{6}-thiabicyclo[4.3.0]nona-1,3,5-trien-7-yl]-2-hydroxy-3-methyl-phenyl]methyl-(carboxylatomethyl)amino]acetate
Tetrasodium N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methylphen-3,1-ylene)methylene]]bis[N-(carboxylatomethyl)aminoacetate] S,S-dioxide

CAS

3618-43-7

Formula

C31H28N2Na4O13S

Molecular Weight

760.6

EINECS

222-805-8

Beilstein/Gmelin

NA

Physical and Chemical Properties

Appearance

Dark red solid.

Solubility in water

510 g/L (20 C)

Melting Point

210

Usage

Used to produce ph buffers.

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid if irritation or symptoms occur.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

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

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. Keep containers tightly closed.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation.

Hazards Identification

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling.

Inhalation

Dust is irritating to the respiratory tract. Low hazard for usual industrial handling.

Skin

May cause skin irritation. Low hazard for usual industrial handling.

Eyes

May cause eye irritation. Low hazard for normal industrial handling.

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

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, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Moisture, strong oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide, nitrogen.

Transport Information

HS Code

2934 99 90