(1)、content
Tin (II) pyrophosphate
Stannous pyrophosphate
CAS NO.：15578-26-4
molecular formula ：Sn2P2O7
Relative molecular mass Ar：411.32
(2)、Physicochemical property
Appearance： white crystal or powder
chemical classification ： Inorganic salts
Melting point：360.4℃
Boiling point：1320℃（400 ℃ resolved ）
Relative density：4.009g/cm3
Solubility： It is dissolvable in high concentration of acid, not in water .
Avoid conditions：： moisture—laden air
Contraindications: Superacid and strong? oxidant , flammables or combustibles
CHEMICAL ELEMENT：
Iten |
Stannous pyrophosphate |
（Fe） |
（SO4-） |
（Cl-） |
（As） |
（Fe） |
（Pb） |
Hydrochloric acid insoluble |
element/% |
≥ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
98.7 |
0.0050 |
0.050 |
0.050 |
0.0010 |
0.0050 |
0.0050 |
0.10 |
(3)、USES:
①Used for cyanide-free tin coating
②As toothpaste filler
There is a liitle Micro-Electrolysis dissociation, taking some effect on dental prevention .
③Used in Printing & ceramic industry or ceramic for dyeing or making pottery.
④In paint industry, it can reduce the speed of filling sedimentation velocity in painting , improving paint performance.
(4)、Package & Delivery
Net weight 5kg/ bag with polyethylene plastic bag as inner package. Outer packing :25 KG/barrel , plastic barrel .
Stannous pyrophosphate should be stored in cool and dry place. Pay attention to prevent it from sunshine and breakage of packing.
Cargo: Stannous pyrophosphate can be transported as general goods by air.