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Juan Messina S.A. - Industrias Químicas - Sarmiento 451 - Villa Nueva - Guaymallén CP (M5521GKG)
Mendoza - Argentina - Teléfono - Fax: (0054) (0261) 4450909 ....-....E-mail: info@juanmessina.com.ar
POTASSIUM METABISULFITE
Data Sheet

Product name: Potassium Metabisulfite.
Chemical name: Potassium Bisulfite powder. Potassium Pyrosulfate.
Chemical Formula: K2S2O5.
Appearance: Free-flowing, white, needle-shaped crystals.
Packaging: Powder: 1kg-jars (2.2lb), 25-kg bags (55lb)
...and 700kg (1543lb) bags. ( *Read specifications )
...Various concentrations solutions ( *Read specifications )



........................



Composition

Chemically pure potassium metabisulfite.

Directions

Dissolve in a little bit of water, must or wine, homogenize it and apply it to the product to be treated using the following doses:

10 - 30g/hl for must, depending on grape conditions
2 - 5 g/hl for wine during clarification, devatting or after filtration
10-15 g/hl for preserving filtered sweet wines

Note

For maximum doses, refer to laws ruling the use of potassium metabisulfite.

Storage

Unopened package: Keep in a cool, dry, well-ventilated place.
Opened package: close the package carefully after using the product.




Product: Potassium Metabisulfite
Product Identification in the program: "Manufactured Products Control"
Code: MBSK02062008

SPECIFICATIONS
Parameters
Unit
Minimum
Maximum
pH (10% solution in water)
-
4.00
5.00
Purity - MBSK
% (p/p)
97.00
100.00
SO2 content
% (p/p)
55.90
57.60
Appearance Small needle-shaped, free-flowing white crystals




Product: SO2 Potassium Metasulfite 85 g/L Solution
Product Identification in the program: "Manufactured Products Control"
Code: MBSK107092004

SPECIFICATIONS
Parameters
Unit
Minimum
Maximum
Density at 25ºC (77°F)
g/mL
1.112
1.128
Product pH (Pure) at 25ºC (77°F)
-
3.6
4.4
Degree Baumé
ºBé
14.60
16.40
SO2
% (p/p)
7.25
8.17
SO2 g/L
g/L
80.60
92.20
MBSK g/L
g/l
140.00
160.00
Color Colorless
Appearance Transparent liquid




Product: SO2 Potassium Metabisulfite 160 g/L Solution
Product Identification in the program: "Manufactured Products Control"
Code: MBSK207092004

SPECIFICATIONS
Parameters
Unit
Minimum
Maximum
Density at 25ºC (77°F)
g/mL
1.180
1.200
Product pH (pure) at 25ºC (77°F)
-
4.40
5.00
Degree Baumé
ºBé
22.10
24.20
SO2 content
%
13.56
15.00
SO2 g/L
g/L
160.00
180.00
MBSK g/L
g/l
278.00
312.00
Color Colorless
Appearance Transparent liquid

 

Product Applications:



Wine-making industry: in must and wine, it acts as an antioxidant, antioxidasic and antiseptic fighting undesired microflora. It facilitates fenolic substance solubilization.