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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
Recommended 99.6% Oxalic Acid White Crystal Particle For Clean Stone
| Place of Origin | Weifang |
|---|---|
| Brand Name | Riel Chemical |
| Certification | SGS, ISO9001, CE |
| Model Number | 99.6% |
| Minimum Order Quantity | 1 ton |
| Price | USD 300~400 FOB |
| Packaging Details | 25 kg polyethylene woven bag, moisture-proof, easy to transport |
| Delivery Time | 3～5 work day |
| Payment Terms | T/T , L/C |
| Supply Ability | 50 tons per day |
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
| CAS | 6153-56-6 | EINECS | 205-634-3 |
|---|---|---|---|
| Crystalline Hydrate | Oxalic Acid Dihydrate | Appearance | White Power |
| Acidity | Medium Acid | Solubility | Water |
| Highlight | clean stone h2c2o4 2h2o,clean stone oxalic acid,6153-56-6 h2c2o4 2h2o |
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| Mode of loading | Maximum load | |
|---|---|---|
| 20 GP no pallet | 25 tons | |
| 20 GP with pallet | 22 tons |
Product Description
99.6% Oxalic Acid White Crystal Particle for Stone Cleaning
Product Specifications
| CAS Number | 6153-56-6 |
| EINECS Number | 205-634-3 |
| Crystalline Hydrate | Oxalic acid dihydrate |
| Appearance | White Powder |
| Acidity | Medium acid |
| Solubility | Water |
Key Attributes
- Chemical formula: C₂H₂O₄·2H₂O
- Purity: 99.6%
Production Standard (GB/T1626-2008)
| No. | Test Parameter | 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.
Oxalic Acid Overview
Oxalic acid is a colorless, crystalline organic compound with the chemical formula C₂H₂O₄. It occurs naturally in many plants and is produced industrially for various applications.
Key Properties
- Appearance: White crystalline solid
- Solubility: Highly soluble in water and alcohol
- Acidity: Strong organic acid that forms oxalate salts
Industrial Production Methods
- Oxidation of carbohydrates using nitric acid
- Sodium formate method (CO + NaOH)
- Ethylene glycol oxidation (nitric acid or air catalyzed)
- Biological fermentation using microorganisms
Applications
- Cleaning agent for rust and stain removal
- Bleaching agent in textile and wood industries
- Chemical synthesis for dyes and pharmaceuticals
- Rare earth element extraction and purification
- Electroplating solution stabilizer
- Marble and stone surface polishing
Safety & Environmental Considerations
Oxalic acid is toxic if ingested and can cause skin/eye irritation. Proper handling and PPE are essential. While biodegradable, responsible management is required for environmental safety.
Industrial Roles of Oxalic Acid
- Chemical Synthesis: Intermediate for organic compounds and reducing agent
- Metal Treatment: Rust removal and surface polishing
- Rare Earth Extraction: Forms soluble complexes for purification
- Catalysis: Improves reaction efficiency
- Water Treatment: Chelates calcium/magnesium ions
- Electroplating: Improves coating quality
- Textile Processing: Bleaching and dye mordant
Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight payments.
Can you deliver on time?
Yes, we specialize in timely delivery while maintaining top product quality.
Do you provide free samples?
Yes, we provide free samples with the customer covering express fees.
Can the price be negotiated?
We offer competitive pricing that can be negotiated based on order conditions.
Can I visit your factory in China?
Yes, we welcome visits to our Weifang facility and provide airport transportation.
What if there are quality issues?
Our professional after-sales team promptly resolves all quality concerns.
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