Carbohydrazide

1. Identification

Product Identifiers

Product Name

Carbohydrazide

Other Names

Nil

Product Number(s)

12350, EMS12350

CAS Number

497-18-7

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)

• Harmful if swallowed.
• Causes skin irritation.
• May cause an allergic skin reaction.

Precautionary Statement(s)

• Avoid breathing dust/fume/gas/mist/vapours/spray
• Wash thoroughly after handling.
• Do not eat, drink or smoke when using this product.
• Contaminated work clothing must not be allowed out of the workplace.
• Wear protective gloves.

Primary route(s) of entry

Human Health

Inhalation

No information available.

Ingestion

• Call a poison center/doctor if you feel unwell.
• Rinse mouth.

Eyes

No information available.

Skin

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

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 fighting measures that suit the environment.

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

Not required.

Environmental precautions

• Inform respective authorities in case of seepage into water course or sewage system.
• Do not allow to enter sewers/ surface or ground water.

Methods and materials for containment and clean up

Pick up mechanically.

7. Handling and Storage

Precautions for safe handling

• Precautions for safe handling Open and handle receptacle with care.
• Information about protection against explosions and fires: Keep respiratory protective device available.

Conditions for safe 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.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

• 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.
• No further data; see section 7.

Personal protective equipment

Eye and face protection

• Not required.
• Avoid contact with the eyes and skin.

Skin protection

• Avoid contact with the skin.
• Avoid contact with the eyes and skin.

Body protection

• Keep away from foodstuffs, beverages and feed.
• Immediately remove all soiled and contaminated clothing.
• Wash hands before breaks and at the end of work.
• Store protective clothing separately.
• 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

Respiratory protection

Not required.

9. Physical and Chemical Properties

General information

Appearance

White solid

Odour

Odourless

pH

Not determined

Vapour Pressure

Not applicable.

Density

Not determined

Boiling Point

Undetermined

Melting Point

152 °C (305.6 °F)

Solubility

Not determined.

Specific Gravity of Density

at 20 °C (68 °F): 1.02 g/cm³ (8.5119 lbs/gal)

Flash Point

Not determined.

Flammable (Explosive) Limits

Not determined.

Ignition Temperature

Not determined.

Formula

CH-N-O or OC(N₂H?)₂

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.
• Hazardous decomposition products: No dangerous decomposition products known.

11. Toxicological Information

Acute effects

Sensitization possible through skin contact.

Eye contact

No irritating effect

Skin contact

Irritant to skin and mucous membranes.

Ingestion

No information available.

Inhalation

No information available.

Toxicity and irritation

• Carcinogenic categories
• IARC (International Agency for Research on Cancer) Substance is not listed.
• NTP (National Toxicology Program) Substance is not listed.
• OSHA-Ca (Occupational Safety Health Administration) Substance is not listed.
• Alternative sources for toxicological information
• No non-standard sources for toxicological information where used.

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

• Mobility in soil No further relevant information available.
• General notes:
• Water hazard class 2 (Assessment by list): 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.
• Also poisonous for fish and plankton in water bodies.
• Toxic for aquatic organisms

13. Disposal Considerations

General information

14. Transport Information

ADG label required

HAZCHEM

No further relevant information available.

UN Number

UN3077

Proper shipping name

• DOT RQ Environmentally hazardous substance, solid, n.o.s. (Carbohydrazide)
• ADR 3077 ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Carbohydrazide)
• IMDG, IATA ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Carbohydrazide)

Transport hazard class

• DOT
• Class 9 Miscellaneous dangerous substances and articles
• Label 6.1
• ADR
• Class 9 Miscellaneous dangerous substances and articles
• Label 6.1
• IMDG, IATA
• Class 9 Miscellaneous dangerous substances and articles
• Label 9

Packing group

III

Environmental hazard

• Marine pollutant: Symbol (fish and tree)
• Special marking (ADR): Symbol (fish and tree)
• Special marking (IATA): Symbol (fish and tree)

Special precautions for users

Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code Not applicable.

Additional information

• ADR
• Excepted quantities (EQ) Code: E1
• Maximum net quantity per inner packaging: 30 g
• Maximum net quantity per outer packaging: 1000 g
• IMDG
• Limited quantities (LQ): 5 kg
• Excepted quantities (EQ) Code: E1
• Maximum net quantity per inner packaging: 30 g
• Maximum net quantity per outer packaging: 1000 g
• Special precautions for user: Warning: Miscellaneous dangerous substances and articles
• Hazard identification number (Kemler code): 60
• EMS Number: F-A,S-F
• Stowage Category A
• Stowage Code SW23 When transported in BK3 bulk container, see 7.6.2.12 and 7.7.3.9.
• UN "Model Regulation": UN 3077 ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (CARBOHYDRAZIDE), 6.1, III

15. Regulatory Information

Poisons Schedule Number

No further relevant information available.

Other Information

• 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): ACTIVE
• 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 The substance is classified and labeled according to the Globally Harmonized System (GHS).

16. Other Information

SDS preparation date

26 November 2025

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
• CAS: Chemical Abstracts Service (division of the American Chemical Society)
• NFPA: National Fire Protection Association (USA)
• HMIS: Hazardous Materials Identification System (USA)
• 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
• Acute toxicity - oral 4: Acute toxicity - Category 4
• Skin irritation 2: Skin corrosion/irritation - Category 2
• Sensitization - skin 1: Skin sensitisation - Category 1

References

EMS SDS Carbohydrazide 11/03/2025 https://www.emsdiasum.com/docs/technical/msds/12350.pdf