Sodium Dichromate Dihydrate
Sodium Dichromate Dihydrate (Na2Cr2O7·2H2O) is an orange-red crystalline solid used in various industrial applications.
Product Specifications:
| Field | Details |
|---|---|
| Product Name | Sodium Dichromate Dihydrate |
| CAS No. | 7789-12-0 |
| Standard | GB/T 1611-2014 |
| Appearance | Bright orange-red needle-like or small granular crystals |
| Molecular Weight | 298.00 g/mol |
| Solubility | Soluble in water |
| Melting Point | Decomposes upon heating |
| Applications | Metal finishing, pigment production, leather tanning, wood preservation |
Certificate of Analysis
| Item | Standard (First-Class) | Result |
|---|---|---|
| Na2Cr2O7·2H2O (Min) | ≥ 98.3% | 99.2% |
| Chloride (Cl) max. | ≤ 0.1% | 0.004% |
| Sulfate (SO4) max. | ≤ 0.3% | 0.13% |
| Iron (Fe) | ≤ 0.006% | 0.001% |
Packing:
Typically available in 40KG packages.
Applications:
Sodium Dichromate Dihydrate is used in various industries:
- Metal Finishing: Used in chrome plating and other metal surface treatments.
- Pigment Production: Used in the manufacture of pigments for paints, inks, and ceramics.
- Leather Tanning: Used as a tanning agent in the leather industry.
- Wood Preservation: Used as a wood preservative to protect against decay.
- Chemical Synthesis: Used as an oxidizing agent in various chemical reactions.
Hazard Identification:
Sodium Dichromate Dihydrate is classified as a hazardous chemical. The main hazards associated with its use include:
- GHS Hazard Pictograms:
(Replace with actual oxidizer pictogram URL)- (Replace with actual health hazard pictogram URL)
- (Replace with actual corrosion pictogram URL)
- Signal Word: Danger
- Hazard Statements:
- H272: May intensify fire; oxidizer.
- H301: Toxic if swallowed.
- H312: Harmful in contact with skin.
- H314: Causes severe skin burns and eye damage.
- H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- H350: May cause cancer.
- H360FD: May damage fertility. May damage the unborn child.
- H372: Causes damage to organs through prolonged or repeated exposure.
- H410: Very toxic to aquatic life with long lasting effects.
(Replace with actual oxidizer pictogram URL)
(Replace with actual health hazard pictogram URL)
(Replace with actual corrosion pictogram URL)Precautionary Statements:
To handle Sodium Dichromate Dihydrate safely, the following precautions are recommended:
- Prevention:
- P201: Obtain special instructions before use.
- P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
- P220: Keep away from clothing and other combustible materials.
- P260: Do not breathe dust/fume/gas/mist/vapours/spray.
- P280: Wear protective gloves/protective clothing/eye protection/face protection.
- Response:
- P301+P310: IF SWALLOWED: Immediately call a POISON CENTER/doctor.
- P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
- P304+P340: IF INHALED: Remove 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.
- Storage:
- P405: Store locked up.
- P403+P233: Store in a well-ventilated place. Keep container tightly closed.
- Disposal:
- P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
Manufacturing and Inspection Information:
| Batch No. | 20240812 |
| Manufacturing Date | 2024-08-12 |
| Check | Li Shengmin |
| Quality Control | [Insert Quality Control Name Here] |
