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Name of the product: Potassium metabisulfite.
Chemical name: Potassium bisulfite in powder. Potassium pyrosulfite.
Chemical formula: K2S2O5.
Appearance: small sharp-pointed white crystals of free fluidity.

Container

1 kg bottles Bags of 25kg and big bags of 700kg. (*see specifications).
In solution to varied concentrations (*see specifications).

Uses

In musts and wines it develops an antioxidant and antiseptic action to ward undesirable microflora, it makes the solubilization of phenolic substances easier to do.

Composition

Chemically pure potassium metabisulfite.

Dose

Dissolve some must or wine in a little water and then add homogeneously the potassium metabisulfite to the product in question following these doses:
From 10 to 30 g/hl for musts depending on the sanitary condition of the grapes.
From 2 to 5 g/hl for wine, in clarification, racking or after filtration.
From 10 to 15 g/hl for the preservation of sweet filtered wines.

Warning

For maximum doses and use refer to laws in force for the use of potassium metabisulfite.

Preservation

Close packing: keep it in an aired, dry and fresh place.
Open packing: once the container has been open and used it must be kept closed.

Specifications of Potassium Metabisulfite in Powder	UN	MIN	MAX
Appeareance: small sharp-pointed white crystals of free fluidity.
pH product at 25 degrees	5	4.500	5.000
Purity	%	97.000	99.000
SO2 content	%	55.900	57.000

Specifications of Potassiom Metabisulfite in Solution.	UN	MIN	MAX
Appeareance: Transparent liquid
Colorless
pH product at 25 degrees	5	4	5.000
Baume degrees	°Be	22.100	24.200
SO2 content	%	13.560	15.000
L de SO2		160.000	180.000
L de K2S2O5.		278.000	312.000