Tannic Acid 10% Aqueous Solution

1. Identification

Product Identifiers

Product Name

Tannic Acid 10% Aqueous Solution

Other Names

Tannins

Product Number(s)

21702-10, EMS21702-10

CAS Number

EC Number: 215-753-2

Recommended use of the chemical and restriction on use

Company Details

Emergency Contact Details

2. Hazards Identification

Classification of the substance or mixture

Label Elements

Signal Words

Warning

Hazard Statement(s)

• Causes skin irritation.
• Causes serious eye irritation.

Precautionary Statement(s)

• Wear protective gloves / eye protection / face protection.
• Wash thoroughly after handling.

Primary route(s) of entry

Human Health

Inhalation

Remove person to fresh air and keep comfortable for breathing.

Ingestion

Call a POISON CENTER/doctor if you feel unwell.

Eyes

• Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Specific treatment (see on this label).
• If eye irritation persists: Get medical advice/attention.

Skin

• Wash with plenty of water.
• Take off contaminated clothing and wash it before reuse.
• If skin irritation occurs: Get medical advice/attention.

Environment

3. Composition / Information on Ingredients

4. First Aid Measures

Ingestion

Call for a doctor immediately.

Inhalation

After inhalation: fresh air.

Skin Contact

Immediately wash with water and soap and rinse thoroughly.

Eye Contact

Rinse opened eye for several minutes under running water. Remove contact lenses. If symptoms persist, consult a doctor.

Other Information

• Immediately remove any clothing soiled by the product.
• Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident.

5. Firefighting Measures

Suitable extinguishing equipment

Fire

CO₂, powder or water spray. Fight larger fires with water spray or alcohol resistant foam.

HAZCHEM

Not available.

Special protective equipment and precautions for fire fighters

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures

• Personal precautions, protective equipment and emergency procedures
• Advice for non-emergency personnel: Avoid inhalation of dusts. Evacuate the danger
• area, observe emergency procedures, consult an expert.
• For personal protection see section 8.

Environmental precautions

• Tightly closed. Dry.
• Do not allow to enter sewers/surface or ground water.

Methods and materials for containment and clean up

No special measures required.

7. Handling and Storage

Precautions for safe handling

Ensure good ventilation/exhaustion at the workplace.

Conditions for safe storage

• Store away from flammable substances.
• Store in a closed container.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

• Keep away from foodstuffs, beverages and feed.
• Immediately remove all soiled and contaminated clothing.
• Wash hands before breaks and at the end of work.
• Avoid contact with the eyes and skin.

Personal protective equipment

Eye and face protection

Tightly sealed goggles.

Skin protection

• Protective gloves.
• 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.

Body protection

Protective clothing.

Respiratory protection

In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use self-contained respiratory protective device.

9. Physical and Chemical Properties

General information

Appearance

Light brown powder.

Odour

Characteristic

pH

3.5 (100 g/l) at 20 °C

Vapour Pressure

Not applicable.

Density

0.44 g/cm³

Boiling Point

Undetermined.

Melting Point

218 °C

Solubility

250 g/l miscibility with water at 20 °C

Specific Gravity of Density

Not determined.

Flash Point

199°C

Flammable (Explosive) Limits

Product is not flammable.

Ignition Temperature

Not determined

Formula

C76H52O46

10. Stability and Reactivity

Reactivity

No further relevant information available.

Chemical stability

No decomposition if used according to specifications.

Possibility of hazardous reactions

No dangerous decomposition products known.

Conditions to avoid

No further relevant information available.

Incompatible materials

No further relevant information available.

11. Toxicological Information

Acute effects

No further relevant information available.

Eye contact

Irritating effect.

Skin contact

Irritant to skin and mucous membranes.

Ingestion

• LD/LC50 values relevant for classification:
• Oral LD50 2260 mg/kg (rat).

Inhalation

No sensitising effects known.

Toxicity and irritation

• LD/LC50 values relevant for classification:
• Oral LD50 2260 mg/kg (rat)

12. Ecological Information

Ecotoxicity

Not known to be hazardous to water.

Persistence and degradability

No further relevant information available.

Bioaccumulative potential

No further relevant information available.

Other adverse effects

• Water hazard class 2: hazardous for water.
• Do not allow product to reach ground water, water course or sewage system.
• Danger to drinking water if even small quantities leak into the ground.

13. Disposal Considerations

General information

14. Transport Information

ADG label required

HAZCHEM

Not available.

UN Number

None

Proper shipping name

Not regulated.

Transport hazard class

0

Packing group

None.

Environmental hazard

No

Special precautions for users

Not applicable.

Additional information

No information available.

15. Regulatory Information

Poisons Schedule Number

• Section 355 (extremely hazardous substances):
• None of the ingredients is listed.
• Section 313 (Specific toxic chemical listings):
• None of the ingredients is listed.
• TSCA (Toxic Substances Control Act):
• All components have the value ACTIVE.
• Hazardous Air Pollutants
• None of the ingredients is listed.
• Proposition 65
• Chemicals known to cause cancer:
• None of the ingredients is listed.
• Chemicals known to cause reproductive toxicity for females:
• None of the ingredients is listed.
• Chemicals known to cause reproductive toxicity for males:
• None of the ingredients is listed.
• Chemicals known to cause developmental toxicity:
• None of the ingredients is listed.
• Carcinogenic categories
• EPA (Environmental Protection Agency)
• None of the ingredients is listed.
• TLV (Threshold Limit Value)
• None of the ingredients is listed.
• NIOSH-Ca (National Institute for Occupational Safety and Health)
• None of the ingredients is listed

Other Information

A Chemical Safety Assessment has not been carried out.

16. Other Information

SDS preparation date

2 March 2026

Comments

• Abbreviations and acronyms:
• ADR: Accord relatif au transport international des marchandises dangereuses par route (European Agreement Concerning the International
• Carriage of Dangerous Goods by Road)
• IMDG: International Maritime Code for Dangerous Goods
• DOT: US Department of Transportation
• IATA: International Air Transport Association
• EINECS: European Inventory of Existing Commercial Chemical Substances
• ELINCS: European List of Notified Chemical Substances
• CAS: Chemical Abstracts Service (division of the American Chemical Society)
• NFPA: National Fire Protection Association (USA)
• HMIS: Hazardous Materials Identification System (USA)
• VOC: Volatile Organic Compounds (USA, EU)
• PBT: Persistent, Bioaccumulative and Toxic
• vPvB: very Persistent and very Bioaccumulative
• NIOSH: National Institute for Occupational Safety
• OSHA: Occupational Safety Health
• TLV: Threshold Limit Value
• PEL: Permissible Exposure Limit
• REL: Recommended Exposure Limit
• Skin irritation 2: Skin corrosion/irritation - Category 2
• Eye irritation 2A: Serious eye damage/eye irritation - Category 2A

References

• EMS SDS Tannic Acid, 10% Aqueous Solution. 11/04/2022 https://www.emsdiasum.com/docs/technical/msds/21702-10.pdf
• Sigma-Aldrich SDS Tannic acid 08/02/2025 https://www.sigmaaldrich.com/AU/en/sds/sial/403040-userType=undefined.