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Analyzes for process chemicals

Chemicals that come out of the process need to be analyzed, checked and classified in order to know what measures need to be taken during any post-processing. Suggestions for common analyzes for process chemicals can be found below.


We are happy to discuss analysis approaches to your production process chemicals. Below you will find examples of analyzes for the process chemicals lime, lixivium, soap, tall oil, white water and methanol. There is a package for incrustation as well.



    • Tall oil (maximum theoretical yield in soap)
    • Lixivium amount
    • Calcium (important for eg crust formation)
    • Dry content
    • Calorific value

    Tall oil - is a dark brown, viscous and sulfur-containing liquid that is formed during the production of pulp via the sulphate process, black liquor and comes from the extractives. The constituents of tall oil can be divided into fatty acids, resin acids, neutral substances and lignin (small amounts). It contains valuable chemical substances that can be further processed into, among other things, green chemicals.

    • Acid number
    • Neutral substances (unsaponifiable matter)
    • Composition m.a.p. fatty and resin acids
    • Water content
    • Ash content
    • Total sulfur
    • Total sodium

    Lixiviums - to make detailed evaluations of different sub-processes in chemical recycling, analyzes of the contents / composition of lixiviums in different positions are needed. We have a number of analyzes for each type of lixivium that can be performed to assist in the evaluations. Feel free to contact us for guidance and information.

    Black liquor:

    • Fiber content (total content)
    • Residual alkali (hydroxide), carbonate
    • Concentrates of sulphide, sulphite, sulphate, thiosulphate, total-sulfur,
    • Oxalate content
    • Chloride content
    • Metal content
    • Carbohydrates, total, polymeric, free (monomer)
    • Lignin (total content)
    • Molecular weight distribution lignin
    • Tall oil
    • Terpener
    • Hydroxy acids (subcontractor)
    • Volatile acids (subcontractor)
    • Dry content
    • Ash content

    White- and green lixivium:

    • Alkali content, total, active and effective alkali
    • Carbonate content
    • Content of Sulfide, sulfite, sulfate, thiosulfate, total sulfur
    • Content of potassium and sodium
    • Chloride content
    • Metal content


    • Carbonate content
    • Sulfate content
    • Oxalate content
    • Calcium (total content) and Calcium (dissolved content)
    • Sodium content
    • Aluminum content
    • Silica content
    • Dry content

    White water:

    • Anions
    • Cation requirements
    • Carboxylic acids
    • Uronic acid
    • ASA, total content
    • Carbohydrates, total content
    • Lignin
    • Optical white agent
    • Starch


    • Free lime
      Metals (Na, Mg, Ca, Mn, Fe, Al, Si, P, S)
      Acid soluble sodium

    Methanol / impure condensate:

    • Methanol
    • Water content
    • Ammonium
    • Total nitrogen
    • TRS (hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl disulfide)
    • Total sulfur
    • Monoterpenes (α-pinene, β-pinene, 3-caren, limonene)
    • Total monoterpenoids
    • Total sesquiterpener
    • Total diterpenoids
    • GC-MS: Screening other organic compounds




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    Analyzes for process chemicals

    Innovation area

    Biorefinery, Chemical processes and products, Pulp and paper, Production and manufacturing


    Price on tender

    Delivery time

    Analysis results are delivered by e-mail, normally within 15 working days of the samples arriving to us. With reservation for samples that require special treatment. Express analyzes can be obtained at a surcharge by agreement.


    No preparation needed

    Supports the UN sustainability goals

    6. Clean water and sanitation
    9. Industry, innovation and infrastructure
    12. Responsible consumption and production
    14. Life below water
    Christina Wedin

    Contact person

    Christina Wedin


    +46 10 722 32 47

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