What is the pH value of the product?

The pH value is between 6.0 and 7.0.

How does this product improve rubber properties?

It acts as a reinforcing agent that greatly improves tensile strength, tear strength, and toughness.

What is the loading quantity for a container?

A 20' container holds 8MT, while a 40' container holds 16MT.

Precipitated Silica White Carbon Black for Silicone Rubber

Name: Precipitated Silica White Carbon Black for Silicone Rubber
Brand: Zhengzhou Kelai Chemical Co., Ltd.
SKU: 2008229252

Henan, ChinaZhengzhou Kelai Chemical Co., Ltd.

US$1,000.00

1-24 Tons

US$850.00

25-49 Tons

US$750.00

50+ Tons

Sample price:US$0.00/kg.Request sample

Product profile

Customization

Available

CAS No.

10279-57-9

Formula

Sio2.Nh2o

Model NO.

White Carbon Black

EINECS

238-878-4

Colour

White

Appearance

Powder

Application Material

Rubber

Type

Synthetic

Solubility

Composition

Sio2·Nh2o

Yellow Pigments

None

Green Pigments

None

Blue Pigments

None

Product Name

White Carbon Black

Classification

Silicon Dioxide

Grade Standard

Industrial Grade

Kind

White Carbon

Quality

First Class

White Carbon Black

White Powder, Granular

Application

Production of Rubber Products

Package

Bag

Filter Pressure Value(Fpv)

2.15

pH Value

6.5-7.5

Specific Surface Area (M2/G)

176-225

White Carbon Black Purity

98% Min

Melting Point

100ºC(Lit.) Min

Boiling Point

Storage

Dry Place

Transport Package

25kg Net Bag or Customized Package

Specification

25kg net per bag

Trademark

Kelai

Origin

China

HS Code

281122

Production Capacity

100000mt Per Year

Key features

High Purity Silica: SiO2 content is 98% min on dry basis ensuring high quality.

Customized Packaging: Available in 25kg net bags or fully customized package options.

Superior Reinforcement: Significantly improves tensile strength, tear strength, and impact resistance in rubber.

Excellent Thixotropy: Provides one-touch change rheology control and prevents sagging in liquid systems.

Anti-Caking Performance: Maintains powder fluidity and prevents agglomeration in various applications.

Wide Application Range: Ideal for rubber, coatings, adhesives, pharmaceuticals, and food industries.

High Specific Surface Area: BET specific surface area ranges from 230 to 250 m2/g for optimal performance.

Thermal Insulation: Features low thermal conductivity for excellent thermal insulation effects.

Company profile

Zhengzhou Kelai Chemical Co., Ltd.

Henan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-01-21Average Response Time: ≤2.28hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP

AI-Powered supplier vetting

SummaryZhengzhou Kelai Chemical Co., Ltd. is identified as a trading company headquartered in Zhengzhou, Henan, with permitted import and export activities. The provided information describes fine-chemical R&D, production, operations, and exports to more than 68 countries, although other records characterize the entity as a chemical-products trading business. It reports ISO 9001 and ISO 14001 certifications, OEM/ODM availability, recent new-product activity, and multiple customization options. Service logistics include warehousing, contract-carrier transportation, and stated lead times within 15 working days in both peak and off-season periods. However, it has no overseas showroom, agents, branches, or offline trade-show participation, and no SDK is available. Financial records are indicated for 2023–2025, but no substantive financial-performance evidence is provided. Supplier-management procedures are not documented, and customer evidence is limited to general claims of OEM service for known brands and exports...

Supplier typeThe supplier is explicitly classified as a trading company, with permitted import/export activities and a Zhengzhou, Henan location. Its background description also states involvement in fine-chemical R&D, production, and operations, so the available records present both trading and product-related capabilities.

CertificationsThe supplier reports holding ISO 14001 and ISO 9001 certifications. These are explicit certifications relevant to environmental and quality management systems.

After-Sales capabilityService support includes warehousing, contract-carrier transportation, and stated lead times within 15 working days in both peak and off-season periods. However, the supplier reports no overseas showroom, agents, branches, or offline trade-show participation, and offers overseas services in zero countries; therefore, after-sales coverage is not demonstrated as strong, particularly internationally.

R&D capabilityThe supplier reports R&D capability, at least one new product during the past year, and ODM services; its company background describes fine-chemical R&D. However, it explicitly has no available SDK, so innovation support is evidenced for product development but not for SDK-based integration.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, minor customization, flexible customization, and customization from designs. It also reports ODM availability, providing direct evidence of broad customization support.