Cream of Tartar (Potassium Bitartrate)

CAS #: 868-14-4
Molecular Formula: KC4H5O6

Appearance:
White crystalline powder with nice acidic taste, odorless.

Applications:
Cream of tartar is used in various food and non-food applications. Typical food applications include stabilizing egg whites while increasing their heat tolerance and volume; preventing the crystallization in sugar syrups; reducing discoloration of cooked vegetables and it is frequently mixed with baking soda (which needs an acid ingredient to activate it) to form baking powder.

Specifications:
This product complies with the requirements of NF XIX and FCC IV.

Identification …………………… A: Reddish purple color;
B: Yellow orange precipitate;
C: Silver is deposited forming a mirror
Assay ……………………. > 99 %
Solubility …………………… 1 gram dissolves in 16 ml boiling water
Insoluble matter …………………… No undissolved residue remains
Ammonia …………………… Odor of Ammonia is not evolved
Heavy metals …………………… < 4 ppm
Lead …………………… < 2 ppm
Arsenic …………………… < 1 ppm

Packing:
Packed in 25 kg multi-layer bags.

Storage & Shelf life:
The product should be stored in a cool, dry place away from sunlight. Normal shelf life is 5 years from manufacturing date.

Download PDF