SAFETY DATA SHEET
Thymol Blue Free Acid, ACS Grade
1. IDENTIFICATION
Product Identifiers
Product Name:
Thymol Blue Free Acid, ACS Grade
Other Names:
TB; Thymolsulfonephthalein
Product Number(s):
C103, C1035
CAS Number:
76-61-9
Recommended use of the chemical and restriction on use
Staining dye for electron microscopy, used in laboratory conditions.
Company Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia

(07) 4773 9444
www.proscitech.com
Emergency Contact Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia

(07) 4773 9444
www.proscitech.com
2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Not a hazardous substance or mixture.
Label Elements
Signal Words
None
Hazard Statement(s)
Not available.
Precautionary Statement(s)
Not available.
Primary route(s) of entry
Not available.
Human Health
Inhalation:
Not available.
Ingestion:
Not available.
Eyes:
Not available.
Skin:
Not available.
Environment
Not available.
3. COMPOSITION/INFORMATION ON INGREDIENTS
Name
CAS No.
Content (w/w)
Classification
Thymol Blue
76-16-9
-
Not hazardous
4. FIRST AID MEASURES
Ingestion
Do not induce vomiting without medical advice. Rinse with water. Consult physician.
Inhalation
Move to fresh air. Consult a physician.
Skin Contact
Rinse with plenty of soap & water and seek medical advice.
Eye Contact
Rinse immediately with plenty of water and seek medical advice.
Other Information
Treat symptomatically and supportively.
5. FIREFIGHTING MEASURES
Suitable extinguishing equipment
Use dry chemical, CO₂, water spray or alcohol resistant foam.
HAZCHEM
Carbon oxides, sulphur oxides.
Special protective equipment and precautions for fire fighters
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water mist may be used to cool closed containers.
6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Use proper PPE as indicated in Section 8.
Environmental precautions
Not available.
Methods and materials for containment and clean up
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
7. HANDLING AND STORAGE
Precautions for safe handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Conditions for safe storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Exposure Standards
Engineering controls
Not available.
Personal protective equipment
Eye and face protection
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 protection
Wear appropriate protective gloves to prevent skin exposure. 0.11mm thick nitrile.
Body protection
Wear appropriate protective clothing to prevent skin exposure.
Respiratory protection
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.
9. PHYSICAL AND CHEMICAL PROPERTIES
General information
Appearance
Dark brown powder.
Odour
Characteristic odour.
pH
Not available.
Vapour Pressure
Not available.
Density
0.979g/cm3
Boiling Point
Not available.
Melting Point
221-224°C
Solubility
Not available.
Specific Gravity of Density
Not available.
Flash Point
Not available.
Flammable (Explosive) Limits
Not available.
Ignition Temperature
Not available.
Formula
C27H30O5S.
10. STABILITY AND REACTIVITY
Reactivity
No further relevant information available.
Chemical stability
Stable under normal temperatures and pressures.
Possibility of hazardous reactions
No further relevant information available.
Conditions to avoid
High Temperatures.
Incompatible materials
No further relevant information available.
11. TOXICOLOGICAL INFORMATION
Acute effects
No further relevant information available.
Eye contact
No further relevant information available.
Skin contact
No further relevant information available.
Ingestion
No further relevant information available.
Inhalation
No further relevant information available.
Toxicity and irritation
No further relevant information available.
12. ECOLOGICAL INFORMATION
Ecotoxicity
No further relevant information available.
Persistence and degradability
No further relevant information available.
Bioaccumulative potential
No further relevant information available.
Other adverse effects
No further relevant information available.
13. DISPOSAL CONSIDERATIONS
General information
Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous regulations to ensure complete and accurate classification.
14. TRANSPORT INFORMATION
ADG label required
HAZCHEM
Carbon oxides, sulphur oxides.

UN Number
None
Proper shipping name
Not regulated.
Transport hazard class
Void
Packing group
None.
Environmental hazard
No information available.
Special precautions for users
No information available.
Additional information
No information available.
15. REGULATORY INFORMATION
Poisons Schedule Number
Not listed.
Other Information
No further relevant information available.
16. OTHER INFORMATION
SDS preparation date
28 November 2024
Comments
This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.
This Safety Data Sheet (SDS) has been prepared in compliance with the Preparation of Safety Data Sheets for Hazardous Chemicals Code of Practice February 2016. It is the user's responsibility to determine the suitability of this information for adoption of necessary safety precautions. The information published in this SDS has been compiled from the publications listed in Section 16: to the best of our ability and knowledge these publications are considered accurate. We reserve the right to revise Safety Data Sheets as new information becomes available. Copies may be made for non-profit use.

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