Industrial Grade Oxalic Acid Sewage Treatment Cleaning Rust Descaling 99.6 %
Key attributes
Chemical formula: C₂H₂O₄·2H₂O
CAS: 6153-56-6
Purity: 99.6%
Production standard
COA need meets GB/T1626-2008:
| No. | Items for detecting and analyzing | Standard value |
| 1 | Oxalic acid content (C2H2O4) ％≥ | 99.6 |
| 2 | Sulfide (as SO4) ％≤ | 0.07 |
| 3 | Combustion residue ％≤ | 0.01 |
| 4 | heavy metal (as Pb) ％≤ | 0.0005 |
| 5 | Fluoride (as Fe) ％≤ | 0.0005 |
| 6 | Chlorine (as Cl) ％≤ | 0.0005 |
| 7 | Calcium (as Ca) ％≤ | 0.0005 |
| 8 | Water insoluble content ％≤ | 0.02 |
References: Riel Chemical Lab1&2, National public service platform for standards information.
Physicochemical property
| Molecular weight: 126.07 g/mol | Appearance: white transparent crystal or powder, industrial products may be slightly yellow due to impurities. |
| Odor: Tasteless or slightly sour. | Density: 1.65 g/cm³ (20°C). |
| Melting point: The dihydrate lost its crystalline water at 101-102°C and was converted to anhydrous oxalic acid (H₂C₂O₄). Anhydrous oxalic acid sublimates at about 189.5°C and decomposes at high temperatures. |
| Solubility: Water: soluble in cold water (about 10 g/100 mL, 20°C), hot water solubility is higher. Ethanol: slightly soluble (approx. 5.7g /100 mL, 20°C) |
| Acid: Binaric acid, acidic stronger than acetic acid (pKa₁=1.25, pKa₂=4.14); It can react with bases, metal oxides, carbonates to form salts (such as sodium oxalate, calcium oxalate). |
| Reducibility: Under acidic conditions can be oxidized by strong oxidants (such as potassium permanganate) to produce CO₂ and H₂O |
| Complexation: Oxalate (C₂O₄²⁻) forms a soluble complex with metal ions (e.g. Fe³+, Al³+). It is used in metal cleaning or rust removal. |
| Thermal decomposition: Decomposition when heated above 150°C, producing CO, CO₂ and H₂O: |
Oxalic acid use
Step 1: Detergent
Rust remover: Used to remove rust from metal surfaces.
Cleaning agent: Clean toilets, tiles, etc., remove scale and stains.
2. Industrial applications
Bleach: Used as a bleach in the textile and wood industries.
Metal polishing: Used to polish marble and metal surfaces.
3. Chemical reagents
Analytical chemistry: Used as a reducing agent and complexing agent for titration analysis.
Catalyst: Used as a catalyst in certain chemical reactions.
4. The field of medicine
Hemostatic agent: Once used to stop bleeding, but now less used due to toxicity.
Laboratory reagents: for the preparation of other compounds.
5. Other uses
Scale remover: Removes scale from boilers and pipes.
Wood treatment: Used for wood preservative treatment.
Matters needing attention
Toxicity: Oxalic acid is toxic, harmful when ingested or inhaled, and can cause irritation in
contact with skin and eyes.
Storage: Store in a cool, dry place, away from incompatible substances.
FAQ
1.What is your payment term?
We can accept T/T and L/C at sight as payment term.
2.Are you able to deliver on time?
Of course! we specialised in this line for many years,
many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
3.Do you provide free sample?
Yes, we can provide free sample . You only need to take the express fee.
4.How about the price?Can you make it cheaper?
We always take the customer’s benefit as the top priority.
Price is negotiable under different conditions, we are assuring you to get the most competitive price.
5.Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Weifang, China.
(We will have someone responsible for picking up and dropping off at Weifang Airport)
6.What if there is a quality problem?
We have a professional and perfect after-sales service team, timely for you to deal with all problems.
Product Tags:
|
|
Sewage Treatment Oxalic Acid Rust Remover Descaling 99.6 % Industrial Grade Images
|
