Sodium Bisulphite in White Crystalline Powder Form is used in almost all commercial wines, to prevent oxidation and preserving flavour. Sodium Bisulphite is available in white crystalline powder form. Sodium Bisulphite is also used in fruit canning for preventing browning which is caused by oxidation and to kill microbes. Sodium Bisulphite in White Crystalline Powder Form is prepared using high grade raw material in accurate composition.