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Food additives data book - wordpres

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Preservatives 772<br />

NAME: Sulphur dioxide<br />

CATEGORY: Antimicrobial preservative<br />

FOOD USE: Bleaching agent/ Antimicrobial/ Preservative/ Dough modifier/ Vitamin C stabiliser. Not for use in<br />

meats, sources of vitamin B1, raw fruits and vegetables, or fresh potatoes<br />

SYNONYMS: Sulphurous oxide/ Sulphurous anhydride/ CAS 7446-09-5/ EINECS 231-195-2/ E220<br />

FORMULA: SO2<br />

MOLECULAR MASS: 64.06<br />

ALTERNATIVE FORMS: Sodium sulphite, sodium bisulphite, sodium metabisulphite, potassium metabisulphite, calcium<br />

sulphite, calcium bisulphite<br />

PROPERTIES AND APPEARANCE: Colourless gas condenses @ -10°C to colourless liquid<br />

BOILING POINT IN °C AT VARIOUS -10<br />

PRESSURES (INCLUDING 760mmHg):<br />

MELTING RANGE IN °C: -72<br />

DENSITY AT 20°C (AND OTHER 1.5 (liquid), 2.26 (vapour)<br />

TEMPERATURES) IN g/l:<br />

PURITY %: >99 (by weight)<br />

WATER CONTENT MAXIMUM IN %: 0.05<br />

HEAVY METAL CONTENT MAXIMUM IN 30 (as Pb)<br />

ppm:<br />

ARSENIC CONTENT MAXIMUM IN ppm: 3<br />

ASH MAXIMUM IN %: 0.05

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