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Food additives data book - wordpres

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Colourings 252<br />

NAME: Indigotine<br />

CATEGORY: <strong>Food</strong> colour<br />

FOOD USE: Confectionery/ Preserves/ Desserts<br />

SYNONYMS: Indigo Carmine/ E132/ FD&C Blue No. 2/ C.I. 73015 (<strong>Food</strong> Blue 1)/ Disodiom 3,3¢-dioxo-2,2¢-bisindolylidene-5,5¢-disulfonate<br />

FORMULA: C16 H8 N2 Na2 O8 S2<br />

MOLECULAR MASS: 466.36<br />

ALTERNATIVE FORMS: Calcium salt/ Potassium salt/ Aluminium lake (insoluble)<br />

PROPERTIES AND APPEARANCE: Dark blue powder or granules<br />

BOILING POINT IN °C AT VARIOUS N/A<br />

PRESSURES (INCLUDING 760 mm Hg):<br />

MELTING RANGE IN °C: Not known<br />

FLASH POINT IN °C: N/A<br />

IONISATION CONSTANT AT 25°C: N/A<br />

DENSITY AT 20°C (AND OTHER N/A<br />

TEMPERATURES) IN g/l:<br />

HEAT OF COMBUSTION AT 25°C IN J/kg: N/A<br />

VAPOUR PRESSURE AT VARIOUS N/A<br />

TEMPERATURES IN mm Hg:<br />

PURITY %: Content not less that 85% total colouring matter, calculated as the sodium salt<br />

WATER CONTENT MAXIMUM IN %: 15

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