Potassium Dichromate

1. Identification

Product Identifiers

Product Name

Potassium Dichromate

Other Names

Not available.

Product Number(s)

20100, EMS20100

CAS Number

7778-50-9

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

None

Hazard Statement(s)

• May intensify fire; oxidiser.
• Toxic if swallowed.
• Harmful in contact with skin.
• Fatal if inhaled.
• Causes severe skin burns and eye damage.
• May cause allergy or asthma symptoms or breathing difficulties if inhaled.
• May cause an allergic skin reaction.
• May cause genetic defects.
• May cause cancer.
• May damage fertility or the unborn child.
• Causes damage to the respiratory system through prolonged or repeated exposure.

Precautionary Statement(s)

• Obtain special instructions before use.
• Do not handle until all safety precautions have been read and understood.
• Keep away from heat.
• Keep/store away from clothing/combustible materials.
• Take any precaution to avoid mixing with combustibles.
• Do not breathe dusts or mists.
• Wash thoroughly after handling.
• Do not eat, drink or smoke when using this product.
• Use only outdoors or in a well-ventilated area.
• Contaminated work clothing should not be allowed out of the workplace.
• Wear protective glove/protective clothing/eye protection/face protection.
• Wear respiratory protection.

Primary route(s) of entry

Human Health

Inhalation

Remove victim to fresh air and keep at rest in a position comfortable for breathing. If experiencing respiratory symptoms: Call a POISON CENTER/doctor.

Ingestion

Immediately call a POISON CENTER/doctor. Rinse mouth. Do NOT induce vomiting.

Eyes

Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If exposed or concerned: Get medical advice/attention.

Skin

(Or hair) Remove/take off immediately all contaminated clothing. Rinse skin with water/shower. Take off contaminated clothing and wash it before reuse. 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

• Do not induce vomiting; call for medical help immediately.
• Drink plenty of water and provide fresh air. Call for a doctor immediately.

Inhalation

• Supply fresh air or oxygen; call for 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. Then 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.
• Remove breathing equipment only after contaminated clothing have been completely removed.
• In case of irregular breathing or respiratory arrest provide artificial respiration.

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

• 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

• Use neutralising agent.
• Dispose contaminated material as waste according to item 13.
• Ensure adequate ventilation.

7. Handling and Storage

Precautions for safe handling

• Thorough dedusting.
• Ensure good ventilation/exhaustion at the workplace.
• Open and handle receptacle with care.
• Keep respiratory protective device available.

Conditions for safe storage

Keep container tightly sealed.

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.
• Store protective clothing separately.
• 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. 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

Wear 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

Crystalline of colour not determined.

Odour

Characteristic

pH

3.5

Vapour Pressure

0hPa

Density

2.68g/cm³

Boiling Point

Undetermined

Melting Point

398°C

Solubility

125g/l with water at 20°C

Specific Gravity of Density

Not available.

Flash Point

Not applicable.

Flammable (Explosive) Limits

Not determined.

Ignition Temperature

Not determined.

Formula

K₂Cr₂O₇

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

Oral LD50 190 mg/kg (mouse)

Eye contact

Strong caustic effect.

Skin contact

Caustic effect on skin and mucous membranes. Sensitisation possible through skin contact.

Ingestion

Swallowing will lead to a strong caustic effect on mouth and throat and to the danger of perforation of oesophagus and stomach.

Inhalation

Sensitisation possible through inhalation.

Toxicity and irritation

Muta. 1B, Carc. 1B, Repr. 1B

12. Ecological Information

Ecotoxicity

Very toxic for fish.

Persistence and degradability

No further relevant information available.

Bioaccumulative potential

No further relevant information available.

Other adverse effects

• Water hazard class 3: extremely hazardous for water.
• Do not allow product to reach ground water, water course or sewage system, even in small quantities.
• Must not reach sewage water or drainage ditch undiluted or unneutralised.
• Danger to drinking water if even extremely small quantities leak into the ground.
• Also poisonous for fish and plankton in water bodies.
• Very toxic for aquatic organisms.

13. Disposal Considerations

General information

14. Transport Information

ADG label required

HAZCHEM

No further relevant information available.

UN Number

UN3086

Proper shipping name

3086 TOXIC SOLID, OXIDISING, N.O.S. (Potassium Dichromate), ENVIRONMENTALLY HAZARDOUS.

Transport hazard class

• Class 6.1 Toxic substances.
• Label 6.1±5.1

Packing group

I

Environmental hazard

• Environmental hazards: Environmentally hazardous substance, solid.
• Marine Pollutant: Yes (DOT)
• Special marking (ADG): Symbol (fish and tree).

Special precautions for users

• Warning: Toxic substances.
• Hazard identification number (Kemler cade): 665
• EMS Number: F-A,S-Q
• Stowage Category: E

Additional information

• Limited quantities (LQ) 0
• Excepted quantities (EQ) Code: E5
• Maximum net quantity per inner packaging: 1g
• Maximum net quantity per outer packaging: 300g
• Transport category: 1
• Tunnel restriction code: C/E

15. Regulatory Information

Poisons Schedule Number

Substance is not listed.

Other Information

• Workers are not allowed to be exposed to this hazardous material. Exceptions can be made by the authorities in certain cases.
• A Chemical Safety Assessment has not been carried out.

16. Other Information

SDS preparation date

5 May 2023

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.