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Food additives data book - wordpres

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Flour Additives 544<br />

NAME: Disodium dihydrogen diphosphate<br />

CATEGORY: Flour additive/ Sequestrant<br />

FOOD USE: Baked goods/ Meat products/ Processed cheese/ Potato products<br />

SYNONYMS: Sodium acid pyrophosphate/ Disodium pyrophosphate/ E450(a)<br />

FORMULA: Na2 H2 P2 O7<br />

MOLECULAR MASS: 221.94<br />

PROPERTIES AND APPEARANCE: White powder or grains<br />

MELTING RANGE IN °C: Decomposes at 220<br />

DENSITY AT 20°C (AND OTHER 1.85<br />

TEMPERATURES) IN g/l:<br />

PURITY %: 95.0% minimum<br />

WATER CONTENT MAXIMUM IN %: 0.5<br />

HEAVY METAL CONTENT MAXIMUM IN 20<br />

ppm:<br />

ARSENIC CONTENT MAXIMUM IN ppm: 3<br />

SOLUBILITY % AT VARIOUS TEMPERATURE/pH COMBINATIONS:<br />

in water: @ 20°C 13% @ 50°C 35%<br />

FUNCTION IN FOODS: Acid raising agent of slow, but variable reactivity. Used in sausages and luncheon meats as an emulsion<br />

stabiliser and to improve flavour and texture. Used as an emulsifying salt in processed cheese. Acts as a<br />

buffer in on-dairy coffee whiteners. Protects against discoloration of potato products<br />

ALTERNATIVES: Monocalcium orthophosphate; Sodium aluminium phosphate; Glucono-delta-lactone

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