Sodium diacetate (E262ii)

No. Sodium diacetate (E262ii) is not one of the markers Open Food Facts uses to classify a food as processed or ultra-processed, so on its own it doesn't raise a product's NOVA group.

What it is

Preservatives are substances which prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against growth of pathogenic micro-organisms.

A product that contains it can still be ultra-processed for other reasons: 134 of the 137 products here that contain sodium diacetate (E262ii) (98%) are in group 4 because of other ingredients or additives.

Function

Preservative: Preservatives are substances which prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against growth of pathogenic micro-organisms.
Sequestrant: Sequestrants are substances which form chemical complexes with metallic ions.

Functional class definitions from the EU food additives regulation, via Open Food Facts.

More about sodium diacetate (E262ii) on Wikidata

Where it turns up

Sodium diacetate (E262ii) appears in 137 of the 40,000 products on this site (0%).

Crisps 13 of 1,471 products
Sausages 11 of 337 products
Stacked extruded potato crisps 10 of 48 products
Corn chips 9 of 359 products
Potato crisps 9 of 622 products
Appetizers 5 of 2,498 products

Products containing sodium diacetate (E262ii)

Showing the 60 most popular of 137.

How the NOVA classification works