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POTASSIUM NITRATE
 
GOST, 

chemical formula 

GOST 19790-84

 KNO3
MAIN PROPERTIES AND field of application  

It is white crystals with yellowish - greyish hue.

Potassium nitrate is non-combustible, it's not  permitted  to convey and to keep it  together with combustible substances.

There are different marks of potassium nitrate:

A, A1, and B - for different branches of industry;

B - is used for retail trade (used as potash-nitrogen fertilizer particularly under cultures which are negatively influenced by chlorine-ion, such as potatoes, sunflower, tobacco, vegetable cultures, fruit trees, berries and vineyards).
PHYSICAL AND CHEMICAL INDICES 

Characteristics

Grades
A, A1, В В

(for retail trade)
Fraction   of  total NO3,   NaC,   K2CO3, insoluble in water KNO2, Ca, Fe, Cu, Co, Mn, Cr, V, granulometric composition, friability of product, fraction of total sulphanole mass.    Under GOST 19790-84 -
Fraction of total mass of water, %, not more 0.1 0.1
Fraction of total mass of nitrogen, %, not more - 13.5
Fraction of total mass of potassium, %, not more - 37.6
PACKAGE

Potassium nitrate of A,Al and B grades is packed in bags under GOST 2226-88 or GOST 17811-78. Net weight - 50 kgs.

Grade B for retail trade is packed in packets under GOST 2228-81, GOST 17339-79 or GOST 10354-82. Net weight of product - from 0,5 up to 3 kgs.

GUARANTEE STORAGE LIFE

Grades A, Al — 1 year from the date of manufacturing; grade B — not limited.