Rubber Accelerators -

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Dalian Richfortune Chemicals Co.,Ltd.  

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Operational Address:
12A-11 Yangguang shuma Building,596 Huang Pu Road,Dalian

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Rubber Accelerators

Rubber Accelerators
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Product Details


CAS No : 9035-99-8
Packaging : 25kg paper-plastic bag
Molecular Formula : Molecular Formula
Molecular Weight : 32.06
Purity : 99 per cent or according to your requirement


Chemical Name: Insoluble Sulfur
Structural Formula:
CAS No: 9035-99-8
Packaging: 25kg paper-plastic bag
Molecular Formula: S8
Molecular Weight: 32.06

Item                                                                       Index
Appearance                                                            Non-raised yellow powder
S content                                                                90.0 ±1.0 %
Insoluble S content(comparing with total S)           90% min
Oil content                                                              20.0±1.0%
Acidity (as H2SO4)                                                0.05% max
Ash                                                                         0.15 %max
Heating loss (60℃)                                            0.50% max
Residues 150 μm                                                    0.50% max
Stability in high temperature (on total S)                75.0% min(105℃ 15minutes)

Properties: Non-raised yellow powder, it is nontoxic, can’t be dissolved in the CS2. It is made by
polymerization from normal S, containing more than 108 S.
Application: It has a good dispersity, don’t spray frost, No migration phenomenon in the adjacent layer.
Shorten the curing time and reduce the amount of sulfur. It is a superior accelerator and vulcanizing
Storage Note: Store in a cool, dry, ventilated place, avoiding moist, fire, the sun. Don’t store it near
products that can emit free amines like sulfonamides accelerator and accelerator DTDM.The validity is 1

Company Profile

Richfortune Chem:
A Global Leader in Specialty Additives, Intermediates and Heat Transfer Fluids

In 1992, we firstly developed and tried to produce Optical Brightener OB. 
In 1995, we started to manufacture 2,5-thiophenedicarboxylic acid(also called OB acid) and other kinds Optical Brighteners( OB-1, FP-127, ER) .
In 2005, we started to make Biphenyl series, Optical Brightener CBS-X and Heat Transfer Fluids. the capacity of Biphenyl has been over 8000mt/a. Heat Transfer Fluids can reach 10000mt/a capacity.
In 2012, we started to expand production capacity of some products, such as 6500mt/a diphenyl oxide, 3000mt/a p-toluic acid, 3800mt/a partial hydrogenated terphenyl, 2000mt/a 2-formylbenzenesulfonic acid sodium salts, 600mt/a ferrocene.

After decades fast development, now our products include:
Additivesoptical brighteners; Antioxidants; UV Absorbers; Flame Retardants, Photo Initiators, Accelerators; Ferrocene, Etc
Heat transfer fluids: 
Biphenyl+Diphenyl Oxide Mixture(RFCTHERM-400), Partial Hydrogenated Terphenyl(RFCTHERM-PHT-350), Etc
P-toluic acid, P-Tolunitrile, 2-amino Phenol, Biphenyl, Diphenyl Oxide, 1,4-naphthalene dicarboxylic acid, 2-Formylbenzenesulfonic acid sodium salt, Etc

We also focus on inorganic chemicals (Especially in High purity Strontium and Barium salts.
Today, our products have been exported to many countries, we also have become a global leader in above fields.

A Commitment to Our Products:
All our products are supported by our Quality System and testing and R&D laboratories, we offer expert technical support and valuable services based on our professional knowledge over decades, We apply this approach to create a customer experience that is friendly, efficient and seamless, We hope to establish good cooperation relations with colleague worldwide.

A Philosophy of Sustainable and Innovative Development:

We always select environmentally responsible raw materials to manufacture our products, For every product across our entire product line, we constantly looks for ways to reduce environmental impact, everybody is obliged to protect environment, everybody have the right to enjoy green grass, clean water and fresh air.

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