Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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3',3"-Dibromothymolsulfonephthalein(76-59-5)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
3',3"-Dibromothymolsulfonephthalein
Synonyms
2-Bromo-4-[7-(3-bromo-4-hydroxy-2-methyl-5-propan-2-yl-phenyl)-9,9-dioxo-8-oxa-9$l^{6}-thiabicyclo[4.3.0]nona-1,3,5-trien-7-yl]-3-methyl-6-propan-2-yl-phenol
3,3'-Dibromothymolsulfonphthalein
3,3-Dimethylacetylacetone
3,3-Dimethylpentane-2,4-dione
3H-2,1-Benzoxathiole, phenol deriv.
Dibromothymolsulfophthalein
NSC 42609
Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-3-methyl-6-(1-methylethyl)-, S,S-dioxide
CAS
76-59-5
CAS
3142-58-3
Formula
C27H28Br2O5S
Formula
C7H12O2
Molecular Weight
624.4
Molecular Weight
128.16999999999999
EINECS
200-971-2
EINECS
221-551-5
RTECS
SJ7450000
RTECS Class
Mutagen
Merck
13,1430
Beilstein/Gmelin
373934
Beilstein Reference
5-19-03-00461

Physical and Chemical Properties

Appearance
Yellow-white or cream-colored, crystalline solid, odorless.
Solubility in water
Insoluble
Solubility in water
21 g/L (25 C)
Melting Point
-3
Melting Point
204-202
Boiling Point
172 - 173
Vapor Pressure
1.3 (25 C)
Density
0.978 g/cm3 (25 C)
pKa/pKb
8.16 (pKa)
Partition Coefficient
1.04
Heat Of Vaporization
40.94 kJ/mol
Usage
Used as a acid base indicator.
Vapor Density
N/R
Refractive Index
1.4290 (20 C)

First Aid Measures

Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
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 immediately.
Inhalation
May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
May cause skin irritation. May be harmful if absorbed through the skin.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
Eyes
May cause irritation.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage
Keep tightly closed. Keep away from heat and open flame.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May be harmful if swallowed.
Ingestion
The toxicological properties of this substance have not been fully investigated.
Inhalation
The toxicological properties of this substance have not been fully investigated.
Skin
The toxicological properties of this material have not been fully investigated.
Eyes
No information regarding eye irritation and other potential effects was found.
Hazards
Emits toxic fumes under fire conditions.
EC Safety Phrase
S 22 24/25
UN (DOT)
1993

Exposure Controls/Personal Protection

Personal Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
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
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.
Respirators
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator.

Fire Fighting Measures

Flash Point
74
Fire Fighting
For small (incipient) fires, use media such as 'alcohol' foam, dry chemical, or carbon dioxide. For large fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use agent most appropriate to extinguish fire.
Fire Potential
Combustible liquid.

Accidental Release Measures

Small spills/leaks
Cover with dry-lime, sand, or soda ash. Place in covered containers using non-sparking tools and transport outdoors. Ventilate area and wash spill site after material pickup is complete.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Disposal Code
3
Stability
Stable at normal temperatures and pressures.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen bromide.
Decomposition
Oxides of carbon.

Transport Information

UN Number
1993
Hazard Class
3
Packing Group
III
HS Code
2934 99 90
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