Vulcanization Accelerator Dithiophosphate 25S

Short Description:

Dithiophosphate 25s or Hydrogen Phosphorodithioate has an appearance of a deep brown or almost black liquid. Some may classify it as a vandyck brown oily liquid and it has a density of 1.17 – 1.20. It has a PH value of 10 – 13 and a mineral substances percentage of 49 – 53.

  • Molecular formula: (CH3C6H4O)2PSSNa
  • Main content: Sodium dicresyl dithiophosphate
  • CAS No.: 61792-48-1
  • Product Detail

    Product Tags

    Technical Data

    ● Product name: Dithiophosphate 25S

    ● Molecular formula: (CH3C6H4O)2PSSNa

    ● Main content: Sodium dicresyl dithiophosphate

    ● CAS No.:61792-48-1






    Mineral substances %



    Deep brown to black liquid

    Chemical Application and Strenghs

    Dithiophosphate 25s or Hydrogen Phosphorodithioate is known to be a good flotation collector of copper, silver sulfide, zinc sulfide (activated), and lead ores. It can somewhat be dissolved in water. Also, it can be directly poured into ball mills and surge tanks.

    ● Hydrogen Phosphorodithioate is used mainly in the separation flotation process of ores like lead and zinc.
    ● Because of its properties it should not be subjected to intense heat like fire or extreme sunlight. Proper packaging must be observed.
    ● It is weak in collecting sulfide minerals and pyrite when in alkaline medium. It also is selective in collecting ores.
    ● But in contrast, it is very strong collector when in any acidic or neutral medium. It collects sulfide minerals and pyrite without being selective.
    ● Different conditions and mediums have different effects on its collecting property when dealing with metal oxidized ores.
    ● Dithiophosphates have more difficulty in oxidising which means they are much more stable in different pH values, especially in the pH4 region.
    ● Because these don’t produce any froth, pine oil are used or sometimes MIBC as frothing agents.
    ● Works great together with xanthates the recovery of concentrates.
    ● Dithiophosphates offers stronger collecting power compared to other sub collectors because of its better reaction kinet

    Type Of Packaging

    Iron & plastic drum with a max capacity of 200 kilograms/drum

    IBC drum with 1000kg capacity/drum

    Packaging should be able to protect product from extreme heat exposure from fire and heat from sunlight.

    Storage: Store in a cool, dry, ventilated warehouse.

    Note: Product could also be packed according to customer’s requirements.

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    Q:What's your delivery time?

    Usually we will arrange the shipment in 7 -15 days.

    Q:How to confirm the product quality before placing orders?

    A: You can get free samples from us or take our SGS report as reference or arrange SGS before loading.

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    Q:Do you have a minimum order quantity?

    Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website.

    Q:Can you supply the relevant documentation?

    Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required. 

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