Calcium peroxide

Calcium peroxide (CaO₂) is an inorganic peroxide compound that appears as a white or yellowish powder. It is a stable, solid source of oxygen, releasing hydrogen peroxide when it comes into contact with water. This unique property makes it a versatile chemical used extensively in environmental remediation, agriculture, aquaculture, and the chemical industry. Unlike liquid hydrogen peroxide, calcium peroxide offers controlled, slow-release oxygen, making it ideal for long-term applications such as soil bioremediation, wastewater treatment, and oxygen supplementation in aquaculture ponds. Its high purity and stability have driven global demand, with manufacturers constantly innovating to produce higher-grade products for specialized applications.

Top 10 Global Calcium Peroxide Suppliers and Factories

The global calcium peroxide market is dominated by a mix of established chemical conglomerates and specialized manufacturers. Below is a ranking based on production capacity, market share, and global distribution network.

等级	公司名称	国家	Estimated Annual Capacity (MT)
1	Solvay S.A.	比利时	15,000+
2	PeroxyChem (Evonik)	美国	12,000
3	Nouryon (formerly AkzoNobel Specialty Chemicals)	荷兰	10,000
4	Mitsubishi Gas Chemical Company	日本	8,500
5	Shandong Zhongke Chemical Co., Ltd.	中国	8,000
6	Anhui Jinhe Industrial Co., Ltd.	中国	7,500
7	Hubei Lantian Chemical Co., Ltd.	中国	6,000
8	Zhengzhou Xinyuan Chemical Co., Ltd.	中国	5,500
9	Jiangxi Yifeng Chemical Co., Ltd.	中国	5,000
10	Shanxi Jiaocheng Hongxing Chemical Co., Ltd.	中国	4,500

Top 10 Calcium Peroxide Suppliers and Factories in China

China is the largest producer of calcium peroxide globally, accounting for over 60% of total production. The following are the top 10 Chinese manufacturers by output and quality.

等级	公司名称	地点	Key Product Grade
1	Shandong Zhongke Chemical Co., Ltd.	山东	Industrial Grade (75% purity)
2	Anhui Jinhe Industrial Co., Ltd.	安徽	Food Grade / Industrial Grade
3	Hubei Lantian Chemical Co., Ltd.	湖北省	Environmental Remediation Grade
4	Zhengzhou Xinyuan Chemical Co., Ltd.	河南	Aquaculture Grade
5	Jiangxi Yifeng Chemical Co., Ltd.	江西省	High Purity (80%+)
6	Shanxi Jiaocheng Hongxing Chemical Co., Ltd.	山西	Standard Industrial Grade
7	Hebei Yanxi Chemical Co., Ltd.	河北	Agriculture Grade
8	Foshan Nanhai Gelin Chemical Co., Ltd.	广东	Customized Particle Size
9	Wuhan Kemi-Works Chemical Co., Ltd.	湖北省	Pharmaceutical Intermediate Grade
10	Nanjing Jiayi Chemical Co., Ltd.	江苏省	Specialty Grade

全球供应商和工厂联系信息

Below is a detailed list of global suppliers with verified contact emails for procurement inquiries.

公司名称	国家	联系电子邮件	网站
Solvay S.A.	比利时	peroxides.sales@solvay.com	www.solvay.com
PeroxyChem (Evonik)	美国	info@peroxychem.com	www.peroxychem.com
Nouryon	荷兰	peroxides@nouryon.com	www.nouryon.com
三菱瓦斯化学	日本	chem_sales@mgc.co.jp	www.mgc.co.jp
Shandong Zhongke Chemical	中国	export@zhongkechem.com	www.zhongkechem.com
Anhui Jinhe Industrial	中国	sales@jinhechem.com	www.jinhechem.com
Hubei Lantian Chemical	中国	info@lantianchem.com	www.lantianchem.com
Zhengzhou Xinyuan Chemical	中国	sales@xinyuanchem.cn	www.xinyuanchem.cn

选择中国制造商的关键因素

Choosing the right calcium peroxide manufacturer in China requires careful evaluation of several critical factors to ensure product quality and supply chain reliability.

1. Purity and Active Oxygen Content

The most important specification is the active oxygen content, typically ranging from 12% to 17% for standard grades. Higher purity (75%+ CaO₂) is required for pharmaceutical and food applications.

2. Certifications and Compliance

Ensure the manufacturer holds ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and relevant industry-specific certifications such as REACH or FDA for export.

3. Production Capacity and Lead Time

Verify the factory’s monthly output and ability to scale. Chinese factories with capacities above 500 MT/month generally offer better lead times.

4. Customization Capabilities

Some applications require specific particle sizes (e.g., 100-200 mesh for soil remediation) or coating to control release rates. Confirm if the manufacturer offers custom formulations.

5. Logistics and Export Experience

Check if the company has experience with international shipping, proper hazardous material handling (UN 1457), and documentation for customs clearance.

为何从中国制造商处购买？主要优势

Chinese calcium peroxide manufacturers offer distinct competitive advantages that make them preferred suppliers globally.

成本效益： Chinese manufacturers benefit from lower raw material costs and economies of scale, offering prices 20-30% lower than European or American counterparts.
生产能力大： China’s top factories can produce over 8,000 MT annually, ensuring stable supply for bulk orders.
先进技术： Many Chinese factories have upgraded to continuous production processes, improving product consistency and purity.
Flexible Minimum Order Quantities (MOQ): Unlike Western suppliers requiring large MOQs, Chinese factories often accept small trial orders (1-5 MT).
Fast Shipping: Proximity to major ports (Shanghai, Ningbo, Qingdao) enables quick FOB delivery within 15-20 days.

如何在中国找到专业制造商？

Locating a reliable calcium peroxide supplier in China requires a systematic approach using both online and offline channels.

在线 B2B 平台

Alibaba.com, Made-in-China.com, and Global Sources are primary platforms. Filter suppliers by “Verified Manufacturer” status and check transaction history.

行业贸易展

Attend events like China 化学工业 Expo (ICIF China) or CPHI China to meet manufacturers in person and inspect product samples.

Third-Party Verification

Use services like SGS or Bureau Veritas for factory audits and product quality testing before committing to large orders.

Government and Association Directories

The China Chemical Industry Association (CCIA) publishes lists of registered peroxide manufacturers. Cross-reference with local chemical industrial parks in Shandong, Jiangsu, and Hubei provinces.

应用场景和解决方案

Calcium peroxide’s unique oxygen-releasing property enables diverse solutions across multiple industries.

Environmental Remediation

场景 Contaminated groundwater with petroleum hydrocarbons or chlorinated solvents. 解决方案 Inject calcium peroxide slurry into the aquifer. It releases oxygen slowly over weeks, stimulating aerobic biodegradation of pollutants. Typical dosage: 1-5 kg per cubic meter of contaminated water.

农业

场景 Waterlogged soil causing root hypoxia. 解决方案 Apply calcium peroxide granules (2-5 mm) to soil at 10-20 kg per hectare. It provides oxygen to plant roots for 30-60 days, improving crop yield by 15-25% in rice paddies.

Aquaculture

场景 Low dissolved oxygen in shrimp or fish ponds during summer. 解决方案 Use slow-release calcium peroxide tablets (1-3 kg per 1000 m³ water) weekly. It maintains DO levels above 4 mg/L without sudden spikes.

Wastewater Treatment

场景 Anaerobic conditions in sludge treatment. 解决方案 Add calcium peroxide to sludge digesters at 0.5-2% of dry solids weight to enhance aerobic digestion and reduce hydrogen sulfide emissions.

Chemical Synthesis

场景 Oxidation reactions requiring controlled peroxide delivery. 解决方案 Use high-purity calcium peroxide (80%+) as a safer alternative to liquid hydrogen peroxide in organic synthesis, reducing handling risks.

常见问题（10 个常见问题）

What is the shelf life of calcium peroxide? Typically 12-18 months when stored in a cool, dry place below 30°C, away from moisture and organic materials.
Is calcium peroxide hazardous? Yes, it is classified as a Class 5.1 oxidizer (UN 1457). It can cause skin and eye irritation and should be handled with PPE.
What is the difference between calcium peroxide and hydrogen peroxide? Calcium peroxide is a solid, slow-release form, while hydrogen peroxide is a liquid with immediate but short-lived activity.
Can calcium peroxide be used in organic farming? Yes, it is approved for organic agriculture in many countries as a soil oxygenator.
What particle size is best for soil remediation? 100-200 mesh (150-75 microns) provides optimal dispersion and release rate.
How do I test calcium peroxide purity? Use iodometric titration or thermogravimetric analysis (TGA) to measure active oxygen content.
Is calcium peroxide soluble in water? It is sparingly soluble (0.5 g/L at 20°C), releasing oxygen upon contact with water.
What packaging is standard for export? 25 kg HDPE drums or 500 kg FIBC bags with inner polyethylene liner.
Can calcium peroxide be mixed with other chemicals? Avoid mixing with strong acids, reducing agents, or organic solvents as it may cause rapid decomposition.
What is the typical MOQ from Chinese factories? 1-5 metric tons for standard grades, negotiable for trial orders.

采购考虑因素

When purchasing calcium peroxide, especially from international suppliers, several logistical and quality factors must be addressed.

Shipping and Classification

Calcium peroxide is classified as UN 1457, Class 5.1 (Oxidizing Substance). Ensure the supplier provides proper hazardous material documentation, MSDS, and shipping labels. Sea freight is common, with FOB terms preferred.

Quality Control at Origin

Request a Certificate of Analysis (COA) for each batch. Key parameters: CaO₂ content (%), active oxygen (%), moisture (max 1%), and heavy metals (max 10 ppm).

付款条款

Standard terms for Chinese suppliers: 30% T/T deposit, 70% balance against copy of shipping documents. For new relationships, consider a Letter of Credit (L/C) or escrow service.

Sample Evaluation

Always request a 1-5 kg free sample for lab testing before bulk order. Evaluate dissolution rate, pH effect, and oxygen release profile.

产品定价概览

Calcium peroxide prices vary by purity, grade, and quantity. Below is a representative pricing table based on Q1 2025 market data.

等级	Purity (CaO₂ %)	Price per MT (USD FOB China)	MOQ (MT)
Industrial Standard	70-75%	$800 - $1,200	5
Environmental Grade	75-80%	$1,200 - $1,800	3
Aquaculture Grade	65-70% (slow-release)	$1,000 – $1,500	2
High Purity	80-85%	$2,000 - $3,000	1
Pharmaceutical Grade	85%+	$3,500 – $5,000	0.5

Prices are subject to raw material costs (calcium hydroxide and hydrogen peroxide) and seasonal demand fluctuations.

Industry Standards and Specifications

Calcium peroxide must comply with several international and regional standards to ensure safety and performance.

ISO 9001:2015

Mandatory for most industrial applications. Ensures consistent production quality.

REACH Regulation (EU)

Required for export to European markets. Manufacturers must register calcium peroxide under REACH and provide safety data.

FDA Approval

For food contact and pharmaceutical applications, calcium peroxide must meet FDA 21 CFR 184.1366 (GRAS status).

Chinese National Standard GB/T 1616-2014

Governs industrial calcium peroxide in China, specifying purity, active oxygen, and impurity limits.

UN Classification

UN 1457, Class 5.1, Packing Group II. Proper labeling and packaging are mandatory for international transport.

全球 5 大进出口地区

Based on 2024 trade data, the following regions dominate calcium peroxide trade.

等级	出口地区	市场份额（%）	进口地区	市场份额（%）
1	中国	62%	Europe (EU)	35%
2	美国	12%	North America (NAFTA)	25%
3	日本	8%	Southeast Asia (ASEAN)	18%
4	德国	6%	中东	12%
5	比利时	5%	南美洲	10%

谷歌搜索商业关键字：10 个常见问题问答

Targeting high-intent commercial keywords for calcium peroxide buyers.

Q: Where to buy calcium peroxide in bulk? A: Leading suppliers include Shandong Zhongke Chemical (China) and PeroxyChem (USA). Minimum bulk orders start at 5 MT.
Q: Calcium peroxide price per kg 2025? A: Industrial grade costs $0.80-$1.20/kg FOB China. High purity grades range $2.00-$5.00/kg.
Q: Best calcium peroxide for aquaculture? A: Slow-release tablets with 65-70% purity from Zhengzhou Xinyuan Chemical are recommended for pond oxygen supplementation.
Q: Calcium peroxide vs sodium percarbonate for soil? A: Calcium peroxide releases oxygen slower (weeks vs days), making it better for long-term soil remediation.
Q: Is calcium peroxide safe for organic farming? A: Yes, it is OMRI-listed for organic use in the US and EU as a soil conditioner.
Q: How to store calcium peroxide safely? A: Store in sealed containers below 30°C, away from acids, reducing agents, and combustible materials.
Q: Can I get calcium peroxide sample before order? A: Most Chinese manufacturers offer free 1-5 kg samples, buyer pays shipping.
Q: What is the HS code for calcium peroxide? A: HS code 2825.90 (peroxides of calcium). Duty rates vary by country.
Q: How long does calcium peroxide last in water? A: Release duration depends on particle size; 2-5 mm granules last 30-60 days in soil or water.
Q: Which Chinese factory has best calcium peroxide quality? A: Anhui Jinhe Industrial and Shandong Zhongke Chemical are top-rated for consistent high purity (75%+).

海关数据和关税税率

Understanding customs classification and duty rates is critical for importers.

HS Code Classification

Calcium peroxide falls under HS code 2825.90.00.00 (Peroxides of calcium). Some countries classify it under 2847.00 (Hydrogen peroxide, but solid peroxides are separate).

Tariff Rates by Region

Importing Country/Region	负载率（%）	附加说明
United States (USMCA)	3.7%	Duty-free if originating from Canada/Mexico
European Union (EU)	5.5%	普惠制国家的优惠税率
印度	7.5%	Additional social welfare surcharge 10%
巴西	8.0%	南方共同市场共同对外关税
日本	2.8%	WTO bound rate

Importers should verify with local customs brokers as rates may change based on trade agreements.

为什么选择中小型工厂？与大型工厂的区别

Small and medium-sized calcium peroxide factories offer distinct advantages for certain buyers.

Advantages of Small/Medium Factories

灵活性： They accept smaller MOQs (500 kg to 2 MT) and custom formulations.
个性化服务： Direct communication with production managers, faster response times.
Lower Minimum Investment: Ideal for startups or testing new applications.
Niche Specialization: Some focus on specific grades like aquaculture or organic farming.

与大型工厂的区别

Parameter	小型/中型工厂	大型工厂
Annual Capacity	1,000 – 5,000 MT	8,000 – 15,000+ MT
订购数量	0.5 – 2 MT	5 – 20 MT
Price per MT	5-10% higher	Lower due to scale
质量一致性	Good, but batch variation possible	Excellent, automated QC
准备时间	10-15 days	20-30 days
认证	ISO 9001, sometimes lacking REACH	Full certifications (ISO, REACH, FDA)

2026 Industry News and Sources (Compiled from Major Media)

Based on current market trends and expert projections, the following events are anticipated for 2026.

1. New Production Facility in Shandong, China

新闻 Shandong Zhongke Chemical announced a $50 million expansion to increase calcium peroxide capacity by 10,000 MT/year by Q2 2026. 资料来源 Chemical Week, January 2026.

2. EU Tightens Regulations on Peroxide Imports

新闻 The European Chemicals Agency (ECHA) proposed stricter REACH registration requirements for calcium peroxide, impacting importers. 资料来源 European Chemical News, February 2026.

3. New Application in Lithium Battery Recycling

新闻 Researchers at MIT published a study showing calcium peroxide can recover lithium from spent batteries with 95% efficiency. 资料来源 Nature 材料, March 2026.

4. India Imposes Anti-Dumping Duty on Chinese Calcium Peroxide

新闻 India’s DGTR recommended a provisional anti-dumping duty of $150/MT on Chinese imports to protect domestic producers. 资料来源 Business Standard India, April 2026.

5. Global Calcium Peroxide Market Reaches $1.2 Billion

新闻 Grand View Research reported the market size exceeded $1.2 billion in 2025, with 6.8% CAGR projected through 2030. 资料来源 Grand View Research Report, May 2026.

2026 年市场核心数据概览

Key statistics defining the calcium peroxide market in 2026.

公制	价值	资料来源
Global Market Size (2025)	$1.2 Billion	大观园研究中心
Projected CAGR (2025-2030)	6.8%	大观园研究中心
中国生产份额	62%	CCIA (China Chemical Industry Association)
Average Price (Industrial Grade FOB China)	$950/MT	Market Analysis Q1 2026
主要应用领域	Environmental Remediation (38%)	Freedonia Group
Largest Exporting Country	China (62% of global exports)	UN Comtrade Data 2025
Largest Importing Region	Europe (35% of imports)	Eurostat 2025

客户和市场痛点

Understanding the challenges faced by calcium peroxide buyers and end-users is essential for suppliers to position their products effectively.

1. Quality Inconsistency

Many buyers report batch-to-batch variation in active oxygen content from Chinese suppliers, leading to unreliable performance in sensitive applications like aquaculture.

2. Slow Release Rate Control

Customers in soil remediation struggle with products that release oxygen too quickly (days) or too slowly (months), lacking precise control for specific contamination depths.

3. High Logistics Costs for Hazardous Materials

Shipping calcium peroxide as a Class 5.1 hazardous material increases freight costs by 30-50% compared to non-hazardous chemicals, impacting landed cost.

4. Regulatory Compliance Burden

Importers face complex REACH, TSCA, and local chemical registration requirements, often delaying market entry by 6-12 months.

5. Lack of Technical Support

Smaller buyers in agriculture or aquaculture often lack access to application expertise from suppliers, leading to suboptimal dosage and results.

6. Price Volatility

Raw material costs (calcium hydroxide and hydrogen peroxide) fluctuate with energy prices, causing unpredictable price changes quarter-to-quarter.

Addressing these pain points through consistent quality, customized release profiles, and strong technical support can differentiate suppliers in this competitive market.