Name | ZINC NITRATE |
Synonyms | ZN(NO3)2 ZINC NITRATE ZINC ICP STANDARD, ZN(NO3)2 Dinitric acid zinc salt hydrate |
CAS | 13778-30-8 |
EINECS | 604-035-8 |
Molecular Formula | N2O6Zn |
Molar Mass | 189.4 |
Density | 2.065 |
Melting Point | 36°C |
Appearance | Morphological powder and chunks |
Physical and Chemical Properties | The chemical quality product is tetragonal crystal. Soluble in water and ethanol solution, the aqueous solution is acidic. The pH value is 4, easy deliquescence, low melting point, only 36 ℃. Contact with organic matter can burn and explode. Storage to be sealed. |
Use | Uses This product is used for galvanizing mechanical parts and making steel phosphating agent. It can also be used as a mordant for fabric dyeing. |
Risk Codes | R8 - Contact with combustible material may cause fire R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
UN IDs | UN1514 |
WGK Germany | 3 |
RTECS | ZH4775000 |
Hazard Class | 5.1 |
Packing Group | II |
Raw Materials | Nitric acid Zinc oxide |
Merck | 14,10144 |
add appropriate amount of water into the reaction kettle, add 60kg (96% ~ 99%) zinc oxide powder under stirring, and mix it into slurry. Continue to stir, add concentrated nitric acid dropwise at room temperature, when the concentration of the reaction solution is 30~40 ° Bé and the pH value is 5~6, the reaction ends. Let stand for about 4 h, take the clear liquid and add nitric acid to adjust the pH value to 1~2. The feed liquid is pumped into the evaporator, concentrated to 60 ° Bé, cooled and crystallized for centrifugal dehydration, and directly charged into an iron drum lined with plastic below 50°C to obtain the finished product.
Add a certain amount of water into the reactor, add industrial concentrated nitric acid while adding zinc oxide (content ≥ 70%) under stirring, and the ratio of the two ingredients is 1.6: 1. When the pH value of the reaction solution reaches 3.5~4.0, the reaction is stopped, standing for 24 h, the clear liquid is pumped into the refining water tank, and water is added to dilute to 30~36 ° Bé. Adjust the pH value to 3 with nitric acid. Add appropriate amount of zinc powder and stir for several minutes to replace Ca2 + and Pb2 + ions in the solution to make it Ca and Pb precipitate. The reaction material is clarified and filtered to obtain clear liquid. Add nitric acid to adjust the pH value to 1~2. It is fed into the evaporator and evaporated to 60~63 ° Bé under reduced pressure. The crystallization is cooled in the crystallization tank, and the finished product is packed with materials.