Hexamethylenetetramine (HMT)

1. Identification

Product Identifiers

Product Name

Hexamethylenetetramine (HMT)

Other Names

Urotropine; Methenamine)

Product Number(s)

16710, 16710-25, EMS16710, EMS16710-25

CAS Number

100-97-0

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)

• Flammable solid.
• May cause an allergic skin reaction.

Precautionary Statement(s)

• Keep away from heat/sparks/open flames/hot surfaces. No smoking.
• Ground/bond container and receiving equipment.
• Use explosion-proof electrical/ventilating/lighting equipment.
• Avoid breathing dust/fume/gas/mist/vapours/spray.
• Contaminated work clothing should not be allowed out of the workplace.
• Wear protective gloves/protective clothing/eye protection/face protection.

Primary route(s) of entry

Human Health

Inhalation

Not available.

Ingestion

Not available.

Eyes

Not available.

Skin

Wash with plenty of water. If skin irritation or rash occurs: Get medical advice/attention. Wash contaminated clothing before reuse.

Environment

3. Composition / Information on Ingredients

No information provided.

4. First Aid Measures

Ingestion

If symptoms persist consult doctor.

Inhalation

• Supply fresh air and to be sure call for a doctor.
• In case of unconsciousness place patient stably in side position for transportation.

Skin Contact

Immediately wash with water and soap and rinse thoroughly.

Eye Contact

Rinse opened eye for several minutes under running water.

Other Information

No further relevant information available.

5. Firefighting Measures

Suitable extinguishing equipment

Fire

Use fire extinguishing methods suitable to surrounding conditions.

HAZCHEM

No further relevant information available.

Special protective equipment and precautions for fire fighters

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures

Wear protective equipment. Keep unprotected persons away.

Environmental precautions

Do not allow to enter sewers/surface or ground water.

Methods and materials for containment and clean up

Ensure adequate ventilation.

7. Handling and Storage

Precautions for safe handling

• Keep ignition sources away - Do not smoke.
• Protect against electrostatic charges.

Conditions for safe storage

• Store in a cool location.
• Keep container tightly sealed.
• Store in cool, dry conditions in well sealed receptacles.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

• Immediately remove all soiled and contaminated clothing.
• Wash hands before breaks and at the end of work.

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. Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation. The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.

Body protection

Not available.

Respiratory protection

Not required.

9. Physical and Chemical Properties

General information

Appearance

White crystalline powder.

Odour

Characteristic

pH

Not determined

Vapour Pressure

<0.01hPa

Density

1.331g/cm³

Boiling Point

Undetermined

Melting Point

280°C

Solubility

Not determined

Specific Gravity of Density

Not available.

Flash Point

250°C

Flammable (Explosive) Limits

Not determined

Ignition Temperature

410°C

Formula

C₆N₄

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 reactions known.

Conditions to avoid

No further relevant information available.

Incompatible materials

No further relevant information available.

11. Toxicological Information

Acute effects

Not available

Eye contact

No irritating effect.

Skin contact

No irritant effect. Sensitisation possible through skin contact.

Ingestion

Not available

Inhalation

Not available

Toxicity and irritation

Not 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

• Water hazard class 1: slightly hazardous for water.
• Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.

13. Disposal Considerations

General information

14. Transport Information

ADG label required

HAZCHEM

No further relevant information available.

UN Number

UN1328

Proper shipping name

1328 HEXAMETHYLENETETRAMINE

Transport hazard class

Class 4.1 Flammable solids, self-reactive substances and solid desensitised explosives.

Packing group

III

Environmental hazard

Not applicable.

Special precautions for users

• Warning: flammable solids, self-reactive substances and solid desensitised explosives.
• Hazard identification number (Kemler code): 40
• EMS Number: 4.1-06

Additional information

• Limited quantities (LQ) 5kg
• Excepted quantities (EQ) Code: E1
• Maximum net quantity per inner packaging: 30mL
• Maximum net quantity per outer packaging: 1000mL
• Transport category: 3
• Tunnel restriction code: E

15. Regulatory Information

Poisons Schedule Number

S5

Other Information

A Chemical Safety Assessment has not been carried out.

16. Other Information

SDS preparation date

27 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.