Chromium Trioxide
Dongguan Weiqi Chemical Co., Ltd. was established in March 2019, at a time when China's chemical industry was undergoing rapid growth, with increasing demand for chemical products across various sectors. Founded by industry veterans with extensive experience in chemistry, the company is located in Qiaotou Town, Dongguan City, Guangdong Province. Qiaotou's dynamic industrial ecosystem and convenient transportation facilitate raw material procurement and product distribution.
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![25kg Chromium Trioxed in Steel Drum]()
25kg Chromium Trioxed in Steel DrumA 25 - kilogram quantity of chromium trioxide stored in a steel drum represents a significant amount of a highly potent and hazardous chemical. Chromium trioxide (\(CrO_{3}\)), with its CAS number...read more
Why choose us
Strict Quality Control
Regular sampling and testing during production help identify any potential quality deviations. Final products undergo rigorous performance and safety tests before delivery. All measures adhere to international quality management standards, ensuring that customers receive only first-class chemical products.
Advanced Facilities
A dedicated R&D laboratory is equipped with sophisticated analytical instruments, enabling our R&D team to conduct in-depth research, develop new formulas, and optimize existing products.
Certificates and Documents
- SGS (Swiss General Standards)
- Hazardous Chemicals Business License
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Ether, Acetic Anhydride, Bromine)
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Acetone, Toluene, Sulfuric Acid, Potassium Permanganate)
Our Services
We offer free returns and exchanges for quality issues within 30 days, provide SGS inspection reports, and offer long-term discounts to loyal customers.
Product name: Chromic Acid/ Chromic anhydride/ Chromium trioxide
Chemical Formula: CrO3, Molecular Weight: 99.994.
Dark Red Flakes. Melting Point: 197ºC ((Starts To Decompose).
Specific Gravity: 2.70 G/Cm3. Strong Oxidation, Deliquesces Readily In Air, And Highly Soluble In Water. Flammable In Friction With Organic Compounds. Poisonous.
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Product Name |
Chromic Acid |
|
Molecular Formula |
CrO3 |
|
Key Parameter |
99.8%min. |
|
Cas No. |
1333-82-0 |
|
Properties |
Dark purple to dark red flake. |
|
Applications |
Used for anticorrosion, antioxidant, catalyst, electroplating |
Specification
|
Items |
Standard |
Result |
|
Content(CrO3 )% |
≥99.7 |
≥99.85 |
|
Sulphate(SO42-)% |
≤0.06 |
≤0.05 |
|
Sodium (Na)% |
≤0.05 |
≤0.02 |
|
Water insolubles% |
≤0.02 |
≤0.02 |
|
Turbidity% |
≤5.0 |
≤3.0 |
|
Iron(Fe) |
≤0.005 |
≤0.005 |
Appearance: Dark red to dark purple rhombic crystals, hygroscopic (absorbs moisture easily).
Melting Point: 196°C (decomposes upon heating).
Density: Crystalline form: 2.7 g/cm³; Melt: 2.8 g/cm³.
Solubility: Highly soluble in water, alcohols, sulfuric acid, and diethyl ether; insoluble in acetone.
Chemical Activity:
Decomposes at its melting point and completely decomposes at boiling point.
Strong oxidizing agent: Contact with organic materials (e.g., alcohol, benzene) can cause combustion or explosion.
Highly corrosive to metals and tissues.
Applications
Metal Surface Treatment
Key material in electroplating industries for chromium plating on bicycles, sewing machines, etc., providing a bright finish and enhancing corrosion resistance.
01
Organic Synthesis
Powerful oxidant for converting alcohols to aldehydes or ketones; used in the production of dyes and pigments.
02
Glass and Ceramic Industries
Manufactures green and yellow pigments to impart vibrant colors to glass and ceramics.
03
Wood Preservation
Acts as a wood preservative to protect against fungal decay and insect damage.
04
Chemical Analysis
Used in laboratories for quantitative analysis, such as titrating organic and inorganic substances as a strong oxidant.
05
Precautions
Do not store with inflammable substance, reducing agent, organic compounds, etc.
Avoid moisture, heat and shock during storage and transportation.
Also avoid contacting with eyes and skin.
Personal protective appliances should be equipped with, such as self-suction respirator, acid -proofing rubber gloves, security coat and boot, chemical-resistant protective glasses.
In case of leakage, the polluted area should be quarantined. Entry and exit should be strictly controlled. The leaked material should be gathered, reclaimed or transported and disposed in the waste-disposal station.
Safety and Environmental Considerations
Health Hazards
Highly toxic if inhaled or contacted; causes severe skin burns, respiratory damage, and eye irritation.
Hexavalent chromium (Cr6) in chromic anhydride is a known carcinogen, linked to lung cancer and DNA damage.
Environmental Risks
Contaminates water and soil; improper disposal leads to ecological harm.
Wastewater and residues must be treated via neutralization and reduction to convert Cr6 to less toxic Cr³ before discharge.
Storage and Handling
Store in a dry, well-ventilated area, away from organic materials, reducing agents, and moisture.
Use protective gear (gloves, goggles, respirators) during handling to prevent exposure.
Packaging & Shipping
In Hermetic Steel Drums,
1
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Net Weight For Each
2
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25kg(Φ370×Φ330×225mm)
3
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50kg(Φ365×435mm)
4
>>
100kg(Φ430×750mm)
5
>>
200kg(Φ450×1000mm)
6
250kg(Φ560×890mm)
7
Certificates and Documents
As one of the leading chromium trioxide manufacturers and suppliers in China, we warmly welcome you to wholesale bulk chromium trioxide for sale here and get pricelist from our factory. All chemicals are with high quality and low price.
dichromium trioxide