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Ahmed KhanI'm a trader from Pakistan. I have bought sodium hempetaphosphate with Manager Hu and worked with him for 3 times. THKs Hu, now I have become a local agent. Riel Chemical is indeed a trusted partner. Highly recommended for friends who need high quality chemical products. -
Maria J GarciaOverall, I was impressed. Whether it is product details or service response speed, it is done very well, and customers are satisfied. Warmly tips: Could you guys add more payment methods？that would be great. -
LabrekeoLa vitesse de livraison est très satisfaisante et presque aucune inquiétude. Chaque fois que la coopération fonctionne sans à-coup. Recommandez sincèrement à d’autres acheteurs! -
محمد لاگولدشریک خوب، پیدا کردن چنین تامین کننده ای عالی است، برای شما آرزوی موفقیت دارم -
JackThe cooperation with Riel Chemical Co., Ltd. is our most sensible choice. Your team's efficiency, professionalism and innovative spirit are impressive, and we are looking forward to further cooperation in the future! -- Jack Sales manager -
ອາ ລິ ສໄປ ຈົນ ສຸດ ຂີດ, ຂອບ ໃຈ ຫລາຍໆ ທີ່ ມີ ທ່ານ! ບໍ່ ວ່າ ຈະ ເປັນ ການ ສະຫນັບສະຫນູນ ຢ່າງ ເຕັມທີ່ ໃນ ເວລາ ທີ່ ສໍາຄັນ ຫລື ການ ເອົາ ໃຈ ໃສ່ ຢ່າງ ລະມັດລະວັງ ຕໍ່ ລາຍ ລະອຽດ ຂອງ ການ ຮັບ ໃຊ້ ປະຈໍາ ວັນ, ເຮົາ ຮູ້ສຶກ ວ່າ ໄດ້ ຮັບ ຄວາມ ໄວ້ ວາງ ໃຈ. ຂໍ ໃຫ້ ມິດຕະພາບ ຍືນ ຍົງ ຕະຫລອດ ໄປ ແລະ ການ ຮ່ວມ ໄມ້ ຮ່ວມ ມື ຈະ ຍືນ ຍົງ ຕະຫລອດ ໄປ ——[ທີມການຄ້າເຄມີຂອງລາວ] -
Mr. ZhaoWe have been cooperating with Riel Chemical for five years. The product quality has always been perfect and the usage effect is good. Your company's sales manager is also particularly polite
Supply High Content National Standard Oxalic Acid For Sewage Treatment
| Place of Origin | Weifang, Shandong |
|---|---|
| Brand Name | Riel Chemical |
| Certification | SGS,9001,ISO |
| Model Number | 99.6% |
| Minimum Order Quantity | 1Tons |
| Price | USD100-180FOB |
| Packaging Details | 25kg polyethylene woven bag,moisture-proof,easy to transport. |
| Delivery Time | 5 works |
| Payment Terms | L/C, T/T |
| Supply Ability | 50Tons perday |
Contact me for free samples and coupons.
WhatsApp:0086 18588475571
Wechat: 0086 18588475571
Skype: sales10@aixton.com
If you have any concern, we provide 24-hour online help.
xProduct Details
| Colour | White | CAS | 6153-56-6 |
|---|---|---|---|
| EINECS NO | 205-634-3 | Grade Standard | Industrial Grade |
| Application | Pickling, Iron Removal Reducing Agent, Bleaching | Brand Name | Riel Chemical |
| Acidity | Medium Strong Acid | Packing | 25kg PP Bag |
| Shelf Life | 2years | Solubility | Water Soluble |
| Warning Of Dangerous Goods | Slightly Corrosive | Smell | Odorless Solid |
| Highlight | standard oxalic acid,national h2c2o4 2h2o,national oxalic acid |
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| 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 |
Product Description
High Content National Standard Oxalic Acid for Sewage Treatment
Product Attributes
| Attribute | Value |
|---|---|
| Colour | white |
| CAS | 6153-56-6 |
| EINECS NO | 205-634-3 |
| Grade standard | Industrial Grade |
| Application | Pickling, iron removal reducing agent, bleaching |
| Brand Name | Riel Chemical |
| Acidity | Medium strong acid |
| Packing | 25kg PP Bag |
| Shelf Life | 2years |
| Solubility | Water Soluble |
| Warning of dangerous goods | Slightly corrosive |
| Smell | Odorless solid |
Key Specifications
Chemical formula: C₂H₂O₄*2H₂O
CAS: 6153-56-6
Purity: 99.6%
Production Standard (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 Properties
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.
Additional Information
Classification: Carboxylic Acid
Place of Origin: Weifang, China
Other Names: Oxalic Acid Dihydrate, Ethanedioic Acid
Chemical formula/MF: C2H6O6
EINECS No: 205-634-3
Grade Standard: Industrial Grade
Appearance: White crystal particles/powder
Application: Printing And Dyeing/ Catalyst/ Reductant/Cleaning
Brand Name: Riel Chem
Package: 25kg/bag
MOQ: 5 Ton
Shelf Life: 2 Years
Shipping port: Qingdao Port
Chemical Applications
- Gold industry: used for precipitation separation of rare earth metals
- Organic synthesis: used for 2133 resin, electric jade powder, butyl catalyst, etc.
- Light industry: used for leather, wood, aluminum products, marble polishing, rust removal, bleaching, scale removal, etc.
- Printing and dyeing industry: used to replace acetic acid, for fast pigment group dyes dyeing agent
- Pharmaceutical industry: Used in tetracycline, oxytetracycline, borneol and other fine preparations
- Other aspects: Analytical reagents, pharmaceutical industry, chemical raw materials
Frequently Asked Questions
What is your payment term?
We can accept T/T and L/C at sight as payment term.
Are you able to deliver on time?
Of course! We specialized in this line for many years, many customers make deals with us because we can deliver the goods on time and maintain top quality!
Do you provide free samples?
Yes, we can provide free samples. You only need to pay the express fee.
How about the price? Can you make it cheaper?
We always prioritize customer benefits. Price is negotiable under different conditions, and we assure you'll get the most competitive price.
Can I visit your company and factory in China?
Sure. You are very welcome to visit our company in Weifang, China. (We will arrange airport transfers from Weifang Airport)
What if there is a quality problem?
We have a professional and comprehensive after-sales service team to promptly address any issues.
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