POTASSIUM DICHROMATE - pure 250g

Technical information on chemical reagents:

• Chemical formula: K₂Cr₂O₇
• CAS number: 7778-50-9
• EC number: 231-906-6
• Synonyms: potassium bichromate
• Type: pure
• Purity: analytical grade
• Molar mass: 294.19 g/mol
• Appearance/form: reddish-orange crystalline powder
• Solubility: very soluble in water, insoluble in alcohol
• Decomposition temperature: above 500 °C (oxygen release)
• Packaging type: plastic box or glass bottle (depending on quantity)
• Expiration date: at least 24 months from product delivery.

Examples of professional applications in various sectors:

• Analytical chemistry : potassium dichromate is used as a strong oxidant in volumetric analyses, especially in redox titrations.
• Water analysis : Used for determining chemical oxygen demand (COD) in wastewater samples.
• Research and development : used as an oxidant in organic chemical reactions and laboratory syntheses.
• Photographic technique (historical) : In the manufacture of photosensitive layers for printing plates in reproduction technology (limited use today).
• Textile and leather analysis : Used to study the resistance of dyes and tannins under laboratory conditions.

Hazard statements on the product label:

H301 : Toxic if swallowed.
H312 : Harmful by skin contact.
H318 : Causes serious eye damage.
H334 : May cause allergy, asthma symptoms, or breathing difficulties by inhalation.
H335 : May irritate the respiratory tract.
H340 : May cause genetic defects.
H350 : May cause cancer.
H360FD : May harm fertility. May harm the fetus.
H400 : Very toxic to aquatic organisms.
H410 : Very toxic to aquatic organisms, causes long-term adverse effects.

Safety instructions on the product label:

P201 : Obtain special instructions before use.
P280 : Wear protective gloves/protective clothing/eye protection/face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water and soap.
P304 + P340 : IF INHALED: move person to fresh air and keep comfortable for breathing.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P313 : IF exposed or concerned: Get medical advice/attention.
P501 : Dispose of contents/container in accordance with local regulations.

Restrictions : Reserved for professional use. Special attention is required due to CMR properties. Not suitable for teaching in schools.

Recommended storage conditions:

1. Store in a cool, dry, and well-ventilated place.
2. Protect from direct sunlight and heat sources.
3. Store in tightly closed original containers.
4. Keep away from flammable materials and reducing agents.
5. Allow access only to authorized specialized personnel.