Urea Hydrogen Peroxide UHP Percarbamide CAS 124-43-6
- CAS: 124-43-6
- Synonyms: Urea perhydrate; Percarbamide; Hydrogen peroxide-urea adduct
- EINECS No.: 204-701-4
- Molecular Formula: CH₆N₂O₃
- Grade: Industrial / Agricultural / USP
- Packaging: 25 kg bags or customized
Tree Chem Urea Hydrogen Peroxide (CAS 124-43-6) is a crystalline compound formed from urea and hydrogen peroxide. It provides a stable and convenient source of hydrogen peroxide in solid form, offering efficient oxidation and bleaching capabilities without the handling challenges of liquid H₂O₂.
Our production covers Industrial, Agricultural, and USP grades to serve different fields including agriculture, textile treatment, and pharmaceutical use. Tree Chem’s strict process control ensures high assay, low heavy metal content, and stable oxygen release. For technical support or quotation, please contact info@cntreechem.com.
Specification
Basic Information
| Parameter | Value |
| Product Name | Urea Hydrogen Peroxide |
| Abbreviation | UHP |
| CAS No. | 124-43-6 |
| EINECS No. | 204-701-4 |
| Molecular Formula | CH₆N₂O₃ |
| Molecular Weight | 94.07 |
| Appearance | White crystalline solid |
| Synonyms | Urea perhydrate; Percarbamide; Hydrogen peroxide-urea adduct |
| Packaging | 25 kg bags or customized packaging |
Technical Specification — Industrial & Agricultural Grades
| Test Item | Industrial Grade | Agricultural Grade |
| Active Oxygen (%) ≥ | 15 | 10 |
| H₂O₂ Content (%) ≥ | 33 | 22 |
| Moisture (%) < | 0.5 | 1.0 |
| pH (1% solution) | 5.0–7.0 | 5.0–8.0 |
| Heavy Metals (as Pb, %) ≤ | 0.001 | 0.002 |
| Sulfate (SO₄²⁻, %) ≤ | 0.0003 | 0.0005 |
| Iron (Fe, %) ≤ | 0.001 | 0.002 |
Technical Specification — USP Grade
| Test Item | Standard Requirement |
| Assay (dry basis, CH₆N₂O₃) | 96.0–102.0% |
| Identification | – White crystalline precipitate by phosphoric reaction – Meets peroxide identification in aqueous solution |
| Residual Solvents | Methanol ≤3000 ppm; Ethanol ≤5000 ppm; 1-Butanol ≤35 mg/day |
| Heavy Metals | Pb ≤0.0005%; As ≤0.0002% |
| Microbial Limits | Total ≤100 CFU/g; Mold & Yeast ≤10 CFU/g; E. coli: not detected |
| Physical Properties | pH (1% solution) 3.0–6.0; Moisture ≤0.5%; Melting Point 93–95 °C |
| Stability | 40 °C ± 2 °C, RH 75% ± 5%, 3 months → Active oxygen loss ≤10% |
| Special Applications | Injection: ≤5 EU/mg, sterile filtration Dental Bleaching Agent: ≤35% H₂O₂ equivalent |
| Labeling | “Oxidizing Agent (UN 1511, 5.1)” with expiration and storage below 8 °C |
Applications
Pharmaceutical and Medical Applications
- Urea Hydrogen Peroxide (UHP) plays a vital role in the pharmaceutical and medical industries thanks to its high active oxygen content, stability, and solid form. It serves as a sterilizing and disinfecting agent for medical equipment, instruments, and surfaces, offering effective microbial control without producing toxic residues. In oral care, it is widely used in tooth whitening gels, mouth rinses, and toothpaste formulations, delivering controlled-release oxidation for safe and long-lasting whitening performance.
- In topical and dermatological preparations, UHP functions as an antiseptic for wound cleansing, infection prevention, and acne treatment. Compared with liquid hydrogen peroxide, its solid form allows safer handling, longer shelf life, and better storage stability, making it ideal for medical-grade products that require precise oxygen release.
Cosmetic and Personal Care Applications
- In the cosmetic field, UHP is valued as a mild oxidizing and whitening ingredient. It is commonly used in toothpaste, mouthwash, and whitening strips to remove stains and maintain oral hygiene. In hair bleaching and dyeing formulations, it provides gentler oxidation compared with conventional peroxides, reducing irritation while maintaining effectiveness. UHP is also applied in skincare products for mild exfoliation, acne control, and scalp treatment, where its balanced oxidation and non-irritating nature make it suitable for sensitive formulations.
Agricultural Applications
- UHP is utilized in agriculture as a soil conditioner, seed disinfectant, and plant growth enhancer. By releasing oxygen slowly, it improves soil aeration and promotes beneficial microbial activity. When applied as a seed treatment, it reduces fungal contamination, enhances germination, and promotes early root development. In aquaculture, it functions as an oxygen supplier and water-quality stabilizer, minimizing anaerobic conditions and improving aquatic health.
Industrial Applications
- In the textile and paper industries, UHP is used as an eco-friendly bleaching and oxidizing agent. It effectively removes impurities from fibers at lower temperatures while preserving material strength and minimizing wastewater contamination. In organic synthesis, UHP serves as a safe and selective oxidant for epoxidation, Baeyer–Villiger oxidation, and oxidation of nitrogen-, sulfur-, and phosphorus-containing compounds. Its solid form enables easier handling and more consistent reactivity than liquid hydrogen peroxide. UHP also finds use in metal surface treatment, polymerization initiation, and as an oxygen donor in specialty chemical reactions.
Environmental and Emerging Applications
- In environmental remediation, UHP is applied for wastewater treatment and soil oxidation due to its clean decomposition products—urea and water. It efficiently degrades persistent organic pollutants and supports in-situ chemical oxidation (ISCO) processes. Emerging applications include its use as an oxygen source for lithium battery recycling, solar cell cleaning, and hydrogen-based energy systems. Its stability, safety, and non-toxic decomposition align with global sustainability and green chemistry goals.
Storage & Handling
- Store in cool, dry, and well-ventilated areas below 30 °C.
- Keep away from direct sunlight, heat, and moisture.
- Avoid contact with metals, reducing agents, or combustible materials.
- Use airtight packaging and handle gently to prevent decomposition.
- Wear appropriate protective gloves and goggles when handling.
Usage Notice
- Handle under controlled environmental conditions.
- Avoid contamination during storage or transfer.
- Do not mix with acids or reducing compounds.
- Dispose of according to local chemical safety regulations.
- Teeth Whitening Gel: Urea Hydrogen Peroxide 10–20%, Glycerin 15–25%, Sodium Carboxymethyl Cellulose 1–3%, Calcium Hydrogen Phosphate 10–15%, Menthol 0.1–0.5%, Water balance — whitens teeth effectively while maintaining mildness and stability.
- Antibacterial Toothpaste: Urea Hydrogen Peroxide 3–50 parts, Amino Alcohol 1–80 parts, Sodium Polyacrylate 0.5–10 parts, Water 40–90 parts — combines whitening and antimicrobial effects for advanced oral care.
- Mouthwash: Urea Hydrogen Peroxide 0.5–2%, N-Acetyl-L-Arginine Alkyl Ester Salt 0.1–0.5%, Ethanol 10–20%, Menthol 0.05–0.2%, Water balance — provides deep cleaning, deodorization, and antibacterial protection.
- Wound Disinfectant: Urea Hydrogen Peroxide 3–6%, Saline balance — cleans wounds, kills bacteria, and accelerates healing.
- Hair Bleaching Cream: Urea Hydrogen Peroxide 6–12%, Hydrogen Peroxide (30%) 5–10%, Ammonia 2–5%, Cetyl Alcohol 3–8%, Olive Oil 2–5%, Water balance — provides mild and effective bleaching with minimal irritation.
- Seed Coating Agent: Urea Hydrogen Peroxide 12–25%, Calcium Peroxide 5–10%, Polyvinyl Alcohol 3–5%, Talc 10–20%, Optional Fungicide 0.5–2%, Water balance — enhances seed germination, disinfection, and oxygen supply.
- Textile Bleaching Solution: Urea Hydrogen Peroxide 2–5 g/L, Sodium Hydroxide 1–3 g/L, Sodium Silicate 2–5 g/L, Surfactant 0.5–2 g/L — achieves effective low-temperature bleaching with high whiteness and minimal fiber damage.
- Paper Pulp Bleaching Agent: Urea Hydrogen Peroxide 1–3% (based on dry pulp), Magnesium Sulfate 0.1–0.5%, Acetic Acid adjusts pH to 4–5, Temperature 50–60°C, Reaction Time 2–4 hours — improves pulp brightness without generating harmful byproducts.
- Epoxidation Reaction System: Urea Hydrogen Peroxide 1.5–2 equivalents, Catalyst 5–10 mol%, Ionic Liquid Solvent appropriate amount, Substrate (Cyclohexene) 1 equivalent — yields high conversion rates and recyclable catalytic systems.
Packaging
- 25 kg bags
- Custom sizes available upon request
