Stannous pyrophosphate

Stannous pyrophosphate (Sn₂P₂O₇) is used in electroplating and toothplate.

Title: Stannous pyrophosphate

Synonyms: Tin(II) pyrophosphate, Tin(II) diphosphate
Formula: Sn₂P₂O₇, Molecular: 411.36
CAS #: 15578-26-4, EC #: 239-635-5

Standard(s): Q/6355-2008

Grade: Technical grade

Item	Technical grade
Packing:	25Kgs/drum, in plastic or iron drums with inner bag, or as customer's requirements.
Appearance	White powder or granule
Assay (Sn₂P₂O₇) %	≥99
Tin (Sn) %	≥57
Iron (Fe) %	≤0.005
Arsenic (As) %	≤0.001
Lead (Pb) %	≤0.002
Heavy metal (as Pb) %	≤0.005
Sulphate (SO₄) %	≤0.5
Acid insoluble %	≤0.1

Stannous pyrophosphate is colorless or white powder with a density of 4.009g/cm³. It is insoluble in water, soluble in acid. Our stannous pyrophosphate is of high purity, unique crystal structure, extremely low Fe, Pb, and As contents, easy to be chelated with potassium pyrophosphate, efficiently controlling Sn²⁺ oxidation, excellent polarizing and current distribution ability of plating solution.

Stannous pyrophosphate is mainly used in non-cyanate tin plating, soluble in potassium pyrophosphate solution to form a stable K₆[Sn(P₂O₇)₂ ] chelate complex.

Keep in cool dry place.

Air transportation: arranged as ordinary goods.

Harzards Identification & Classifications: N/A

12 months.