What is Alkyl Ketene Dimer AKD Wax CAS 144245-85-2?

Alkyl Ketene Dimer, also called AKD Wax or AKD wax, is a waxy reactive sizing raw material used in papermaking. Its commonly listed CAS number is 144245-85-2, and commercial grades are typically supplied as pale-yellow to yellow flakes, beads or granules.

Is AKD Wax the same as an AKD sizing emulsion?

No. AKD Wax is the solid active raw material used to prepare a stabilised aqueous sizing emulsion. The finished emulsion includes formulation solids and water, so it is specified separately from the wax grade used in its manufacture.

What is the difference between AKD 1840, AKD 1865 and AKD 1895?

The grades differ mainly in melting point and fatty-acid chain composition. Typical minimum melting points are about 47 deg C for 1840, 50 deg C for 1865 and 60 deg C for 1895, with corresponding iodine values commonly around 45, 44 and 43 g I2/100 g.

Which AKD Wax specifications should paper producers confirm?

Confirm AKD content, acid value, iodine value, melting range, physical form and any residual-solvent limit. These parameters affect emulsification performance and should be matched to the intended internal or surface-sizing process.

Alkyl Ketene Dimer (AKD Wax) CAS 144245-85-2

Alkyl Ketene Dimer, commonly abbreviated AKD and also called AKD wax, CAS 144245-85-2, is a reactive paper sizing raw material supplied as pale-yellow flakes or granules for alkaline papermaking. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 144245-85-2
Synonyms: AKD Wax; Alkyl Ketene Dimer Wax
Einecs: Not specified
Grade: Industrial paper-sizing grade; AKD 1840 / 1865 / 1895
Package: 25 kg woven bags or bulk bags

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Product Description

Alkyl Ketene Dimer (AKD Wax) CAS 144245-85-2 is a waxy reactive sizing raw material used in papermaking.

Synonyms: AKD Wax; Alkyl Ketene Dimer Wax.

CAS: 144245-85-2.

It does not have a single small-molecule formula because it is a commercial alkyl ketene dimer wax grade.

Commercial grades are typically supplied as pale-yellow to yellow flakes, beads or granules.

It is positioned as a reactive paper sizing agent for internal and surface sizing in alkaline papermaking.

It is used to prepare a stabilised aqueous sizing emulsion for papermaking.

It develops water resistance and controls liquid penetration under neutral or alkaline papermaking conditions.

It helps improve printing performance and retention of fines and fillers.

It can reduce the acidic corrosion associated with older rosin-alum sizing systems.

Commercial grades such as AKD 1840, 1865 and 1895 differ mainly in melting point and fatty-acid chain composition.

Typical minimum melting points are about 47 C for 1840, 50 C for 1865 and 60 C for 1895.

Confirm AKD content, acid value, iodine value, melting range, physical form, and residual-solvent limit.

Store in tightly closed containers in a cool, dry, well-ventilated area, away from moisture and direct sunlight.

Use suitable PPE when handling the material to prevent dust or flake exposure and skin or eye contact.

Confirm packaging suitable for the solid form and order quantity, and follow the current SDS.

Confirm grade, packaging, and specification as required.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Alkyl Ketene Dimer AKD Wax CAS 144245-85-2?

A: Alkyl Ketene Dimer, also called AKD Wax or AKD wax, is a waxy reactive sizing raw material used in papermaking. Its commonly listed CAS number is 144245-85-2, and commercial grades are typically supplied as pale-yellow to yellow flakes, beads or granules.
Q:
Is AKD Wax the same as an AKD sizing emulsion?

A: No. AKD Wax is the solid active raw material used to prepare a stabilised aqueous sizing emulsion. The finished emulsion includes formulation solids and water, so it is specified separately from the wax grade used in its manufacture.
Q:
Why is AKD Wax used for neutral and alkaline paper sizing?

A: AKD is a cellulose-reactive size that develops water resistance and controls liquid penetration under neutral or alkaline papermaking conditions. It helps improve printing performance, retention of fines and fillers, and can reduce the acidic corrosion associated with older rosin-alum sizing systems.
Q:
What is the difference between AKD 1840, AKD 1865 and AKD 1895?

A: The grades differ mainly in melting point and fatty-acid chain composition. Typical minimum melting points are about 47 deg C for 1840, 50 deg C for 1865 and 60 deg C for 1895, with corresponding iodine values commonly around 45, 44 and 43 g I2/100 g.
Q:
Which AKD Wax specifications should paper producers confirm?

A: Confirm AKD content, acid value, iodine value, melting range, physical form and any residual-solvent limit. These parameters affect emulsification performance and should be matched to the intended internal or surface-sizing process.

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