Thymol Blue – Product identifier
Trade name: Thymol Blue
Classification of the substance or mixture
The substance is not classified, according to the Globally Harmonized System (GHS).
Label elements
GHS label elements Not Applicable
Hazard pictograms Not Applicable
Signal word Not Applicable
Hazard statements Not Applicable
Precautionary statements
If swallowed: Call a poison center/doctor if you feel unwell.
If on skin: Wash with plenty of water.
If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
Store in a closed container.
Dispose of contents/container in accordance with local/regional/national/international regulations.
Classification system:
NFPA ratings (scale 0 – 4)
Health = 0
Fire = 0
Reactivity = 0
HMIS-ratings (scale 0 – 4)
Health = 0
Fire = 0
Reactivity = 0
Other hazards
Results of PBT and vPvB assessment
PBT: Not applicable.
1 Identification
2 Hazard(s) identification
0
0 0
REACTIVITY 0
FIRE 0
HEALTH 0
Description of first aid measures
General information: No special measures required.
After inhalation: Supply fresh air; consult doctor in case of complaints.
After skin contact: Generally the product does not irritate the skin.
After eye contact: Rinse opened eye for several minutes under running water.
After swallowing: If symptoms persist consult doctor.
Information for doctor:
Most important symptoms and effects, both acute and delayed No further relevant information available.
Indication of any immediate medical attention and special treatment needed
No further relevant information available.
Extinguishing media
Suitable extinguishing agents: Use fire fighting measures that suit the environment.
Special hazards arising from the substance or mixture No further relevant information available.
Advice for firefighters
Protective equipment: No special measures required.
Personal precautions, protective equipment and emergency procedures Not required.
Environmental precautions: Do not allow to enter sewers/ surface or ground water.
Methods and material for containment and cleaning up:
Dispose of the collected material according to regulations.
Reference to other sections
See Section 7 for information on safe handling.
See Section 8 for information on personal protection equipment. See Section 13 for disposal information.
Protective Action Criteria for Chemicals
PAC-1: Substance is not listed.
PAC-2: Substance is not listed.
PAC-3: Substance is not listed.
Handling:
Precautions for safe handling No special measures required.
*
4 First-aid measures
5 Fire-fighting measures
6 Accidental release measures

7 Thymol Blue – Handling and storage
· vPvB: Not applicable.
Chemical characterization: Substances
CAS: 76-61-9
Thymol Blue
100%
3 Composition/information on ingredients

8 Thymol Blue – Exposure controls/personal protection
·
Additional information about design of technical systems: No further data; see section 7.
· Control parameters
·
Components with limit values that require monitoring at the workplace: Not required.
·
Additional information: The lists that were valid during the creation were used as basis.
·
Exposure controls
·
Personal protective equipment:
·
General protective and hygienic measures:
The usual precautionary measures for handling chemicals should be followed.
·
Breathing equipment: Not required.
· Protection of hands:
The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the chemical mixture.
Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
· Material of gloves
The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer.
· Penetration time of glove material
The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.
·
Eye protection: Not required.
·
Body protection: Protective work clothing

9 Thymol Blue – Physical and chemical properties
·
Information on basic physical and chemical properties
·
General Information
·
Appearance:
Form: Powder
Color: Brownish Green
·
Odor: None -reported
·
Odor threshold: Not determined.
· pH-value: Not determined.
· Change in condition
Melting point/Melting range: 221 – 222.8℃
Boiling point/Boiling range: Undetermined.
· Flash point: Not applicable.
·
Information about protection against explosions and fires: No special measures required.
·
Conditions for safe storage, including any incompatibilities
·
Storage:
·
Requirements to be met by storerooms and receptacles: No special requirements.
·
Information about storage in one common storage facility: Not required.
·
Further information about storage conditions: None.
·
Specific end use(s) No further relevant information available.

Reactivity No further relevant information available.
Chemical stability
Thermal decomposition / conditions to be avoided: No decomposition if used according to specifications.
Possibility of hazardous reactions No dangerous reactions known.
Conditions to avoid No further relevant information available.
Incompatible materials: No further relevant information available.
Hazardous decomposition products: No dangerous decomposition products known.
Information on toxicological effects
Acute toxicity:
Primary irritant effect:
on the skin: No irritant effect.
on the eye: No irritating effect.
Sensitization: No sensitizing effects known.
Additional toxicological information:
When used and handled according to specifications, the product does not have any harmful effects according to our experience and the information provided to us.
The substance is not subject to classification.
Carcinogenic categories
IARC (International Agency for Research on Cancer) Substance is not listed.
NTP (National Toxicology Program) Substance is not listed.

· Flammability (solid, gaseous): Not applicable.
· Decomposition temperature: 222.8 ℃
· Ignition temperature: Not determined.
· Danger of explosion: No data available.
· Explosion limits:
Lower: Not determined.
Upper: Not determined.
· Vapor pressure: Negligible.
·
Density at 20℃: 0.979 g /cmᵌ
·
Relative density Not determined.
·
Vapor density Not determined.
·
Evaporation rate Not applicable.
· Solubility in / Miscibility with
Water: Not determined.
· Partition coefficient (n-octanol/water): Not determined.
· Viscosity:
Dynamic: Not determined.
Kinematic: Not determined.
· Other information No further relevant information available.
10 Stability and reactivity

11 Thymol Blue – Toxicological information
Toxicity
Aquatic toxicity: No further relevant information available.
Persistence and degradability No further relevant information available.
Behavior in environmental systems:
Bioaccumulative potential No further relevant information available.
Mobility in soil No further relevant information available.
Additional ecological information:
General notes:
Water hazard class 1 (Self-assessment): slightly hazardous for water
Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.
Results of PBT and vPvB assessment
PBT: Not applicable.
vPvB: Not applicable.
Other adverse effects No further relevant information available.
Waste treatment methods
Recommendation: Smaller quantities can be disposed of with household waste.
Uncleaned packagings:
Recommendation: Disposal must be made according to official regulations.
12 Ecological information
13 Disposal considerations
*
·
UN-Number
·
DOT, IMDG, IATA Not regulated
·
UN proper shipping name
·
DOT, IATA Not regulated
·
IMDG Not Regulated
Not regulated
·
Transport hazard class(es)
·
DOT, ADN, IMDG, IATA
·
Class Not regulated
·
Packing group
·
DOT, IMDG, IATA Not regulated
· Environmental hazards: Not applicable.
· Special precautions for user Not applicable.
· Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code Not applicable.
· UN “Model Regulation”: Not regulated
· OSHA-Ca (Occupational Safety & Health Administration) Substance is not listed. 14 Transport information

15 Thymol Blue – Regulatory information
· Safety, health and environmental regulations/legislation specific for the substance or mixture
No further relevant information available.
· Sara
·
Section 355 (extremely hazardous substances): Substance is not listed.
·
Section 313 (Specific toxic chemical listings): Substance is not listed.
· TSCA (Toxic Substances Control Act):
·
Hazardous Air Pollutants Substance is not listed.
· Proposition 65
·
Chemicals known to cause cancer: Substance is not listed.
·
Chemicals known to cause reproductive toxicity for females: Substance is not listed.
·
Chemicals known to cause reproductive toxicity for males: Substance is not listed.
·
Chemicals known to cause developmental toxicity: Substance is not listed.
· Carcinogenic categories
·
EPA (Environmental Protection Agency) Substance is not listed.
·
TLV (Threshold Limit Value) Substance is not listed.
·
NIOSH-Ca (National Institute for Occupational Safety and Health) Substance is not listed.
·
GHS label elements Not Applicable
·
Hazard pictograms Not Applicable
·
Signal word Not Applicable
·
Hazard statements Not Applicable
· Precautionary statements
If swallowed: Call a poison center/doctor if you feel unwell. If on skin: Wash with plenty of water.
If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store in a closed container.
Dispose of contents/container in accordance with local/regional/national/international regulations.
·
Chemical safety assessment: A Chemical Safety Assessment has not been carried out.
*
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.
Department issuing SDS: Environment protection department.
Date of preparation / last revision
Creation date for SDS: 14/06/2024
Revision 1.0, 27/02/2025: Reviewed SDS for accuracy. MH/STN
16 Other information