What are the main impurities and their limits?

Impurities are strictly controlled: Al2O3 <=400 mg/kg, TiO2 <=200 mg/kg, Fe2O3 <=30 mg/kg, and Chloride <=250 mg/kg.

Does the product come in different surface treatments?

Yes, fumed silica is available in both hydrophilic and hydrophobic types depending on the surface treatment.

What is the pH value of the product?

The pH value for all models ranges from 3.7 to 4.5.

High Quality Chemicals Industrial White Carbon Black

Name: High Quality Chemicals Industrial White Carbon Black
Brand: Yantai Wenxu Industrial Co., Ltd.
SKU: 1951463392

Shandong, ChinaYantai Wenxu Industrial Co., Ltd.

US$500.00-1,500.00

10 Tons

Sample price:US$1.99/kg.Request sample

Product profile

Customization

Available

CAS No.

7631-86-9, 1333-86-4

Formula

Sio2, C

Model NO.

Sio2

EINECS

231-545-4

Classification

Silicon Dioxide

Grade Standard

Industrial Grade

Kind

Acidic Oxide

Quality

First Class

Usage

Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Leather Auxiliary Agents

Einecs

["215-609-9","238-878-4"]

Appearance

Granular or Powder

Color

Black

Classification

Silicon Dioxide

Grade Standard

Food Grade

Kind

Alkaline Oxide

Quality

First Class

Other Name

White Carbon Black

Transport Package

Kraft Paper Bag

Specification

10/20KG or customized

Trademark

Origin

Shandong, China

Production Capacity

20000 Tons/Year

Key features

High Purity SiO2 Content: SiO2 content is guaranteed to be >=99.8% across all models.

Wide Industrial Application: Suitable for rubber, sealant, plastic, resin, paint, ink, paper, cosmetics, and food industries.

Multiple Particle Sizes: Native particle size ranges from 5nm to 40nm with specific surface areas from 150 to 380 m2/g.

Thixotropic Properties: Offers significant functions of thixotropy, reinforcing, thickening, and filling.

Hydrophilic and Hydrophobic Options: Available in hydrophilic and hydrophobic types based on surface treatment.

Consistent Quality Standards: All models meet strict specifications for pH, volatile mass, and burning loss.

Low Impurity Levels: Contains minimal Al2O3, TiO2, Fe2O3, and Chloride impurities.

Reliable Supply Chain: Regular supply and prompt delivery within 15 workdays for both peak and off-peak seasons.

Company profile

Yantai Wenxu Industrial Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2015-10-01Nearest Port: Qingdao, Shanghai, NingboAverage Response Time: ≤6.36hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CPT

AI-Powered supplier vetting

SummaryYantai Wenxu is identified as a China-based manufacturer/factory established in 2003, with chemical production, research and development, and sales integrated within the business. Its stated product portfolio includes aluminum sulfate, alum, polyaluminium chloride, calcium hydroxide, water-treatment chemicals, and related products. Evidence indicates substantial production capacity, including stated annual output of 150,000 tons overall, 30,000 tons for aluminum sulfate-series products, and 20,000 tons each for polyaluminium chloride and calcium hydroxide. The supplier reports multiple ISO-related certifications, GMP, and environmental-management credentials, as well as relevant production and hygiene-license approvals. It has exported since 2015 and reports that exports account for 51%–70% of sales. Innovation and sustainability activities are described, but evidence for after-sales service, customization, financial credibility, and specific customer cases is insufficient.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and is described as an integrated chemical enterprise covering production, research and development, and sales. Its stated founding year is 2003, supporting an established operating history.

CertificationsThe supplier reports ISO 9000, ISO 14001, ISO 9001, ISO 14000, GMP, and ISO 14064 certifications, plus ISO 9000:2008 quality-management certification, a national industrial product production license, and a Shandong drinking-water sanitation safety product hygiene approval. These are explicit indicators of quality, environmental, manufacturing, and product-compliance systems.

R&D capabilityThe supplier describes technology development, innovative solutions, research and development integration, green-chemistry efforts, and sustainability-oriented environmental and safety management. It also reports 11–20 years of total R&D-engineer experience, providing explicit support for innovation capability, although no quantified R&D investment or independently verified innovation results are provided.

Production capacityThe supplier offers a broad chemical product range and reports annual output of 150,000 tons overall, including 30,000 tons for aluminum sulfate-series products and 20,000 tons each for polyaluminium chloride and calcium hydroxide. It also reports 6–10 quality-control staff and factory facilities in Yantai, supporting substantial production and quality-control capacity.