Zinc nitrate
Zinc nitrate
CAS: 7779-88-6
Molecular Formula: N2O6Zn
Zinc nitrate - Names and Identifiers
Zinc nitrate - Physico-chemical Properties
| Molecular Formula | N2O6Zn |
| Molar Mass | 189.4 |
| Density | 2.065g/mLat 25°C(lit.) |
| Melting Point | 36°C(lit.) |
| Water Solubility | 1-1000000mg/L at 20℃ |
| Solubility | H2O: soluble |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | white powder |
| Merck | 13,10197 |
| pKa | 7.5[at 20 ℃] |
Zinc nitrate - Risk and Safety
| Risk Codes | R8 - Contact with combustible material may cause fire R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes 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 | UN 1514 5.1/PG 2 |
| WGK Germany | 3 |
| RTECS | ZH4775000 |
| Hazard Class | 5.1 |
| Packing Group | II |
Zinc nitrate - Nature
Open Data Verified Data
colorless tetragonal crystals. Relative density 2. 065(14 ℃). Melting point 36.4 °c. Six crystals of water were lost when heated to 105-131 °c. Soluble in water and ethanol. Its aqueous solution is acidic (pH = 4). Deliquescence. In the case of heating, the nitrogen oxide gas is liberated and first converted into the basic salt Zn (NO3) 2 · 3Zri(OH)2, and then zinc oxide is formed. Contact with organic matter can cause combustion and explosion. Ammonia-oxidizing gas is released during combustion. Toxic!
Last Update：2024-01-02 23:10:35
Zinc nitrate - Preparation Method
Open Data Verified Data
zinc oxide method: a certain amount of water is added into the reactor, and the ratio of nitric acid to zinc oxide is 1.6:1 (based on the content of 100%) under stirring. Slowly add the reaction to pH 3.5~4, stand for 24h, filter, dilute the filtrate to 30 ~ 360Be with water, adjust to pH 3 with nitric acid, add zinc powder, stir for several minutes, replace Cu2 +, Pb2 + plasma, and then clear, the clear liquid obtained by Suction filtration is acidified, concentrated to 60 ~ 630Be by evaporation, and then cooled to below 50 ℃ under stirring, finished zinc nitrate was obtained. If more than 98% zinc oxide is used as the raw material, the process of removing impurities can be saved.
Last Update：2022-01-01 11:02:18
Zinc nitrate - Use
Open Data Verified Data
zinc plating for machine and bicycle parts. The Preparation of steel phosphating agent, fabric dyeing used as mordant, dye synthetic preservation agent, used as latex coagulant, resin processing catalyst.
Last Update：2022-01-01 11:02:17
Zinc nitrate - Safety
Open Data Verified Data
sealed with an iron drum lined with a polyethylene plastic bag, 25kg or 40kg net weight per drum. The liquid zinc nitrate is packed in a plastic barrel with a net weight of 20kg per barrel. The package should be marked with "oxidant" and "drug" signs. Grade II inorganic oxidant, GB Class 5.1, UN n0.51062; IMDG Code, P. 5193, Class 5.1. Should be stored in a cool, ventilated, dry warehouse, storage temperature should not exceed 30 ℃, should pay attention to moisture. It shall not be stored and mixed with organic matter, flammable materials and acids. Keep away from heat sources and fire during storage to prevent explosion. Protection against rain and sun exposure during transport. During loading and unloading, care should be taken to prevent package breakage. Fire, can use water, sand, all kinds of fire extinguishing. However, the flow of aqueous solution to flammable goods should be avoided. Toxicity and protection: the dust on the upper respiratory tract, trachea, bronchial mucosa damage. Its concentrated solution can cause ulcers on the skin. Long-term contact with this product will occur dermatitis. Production workers should wear work clothes, protective masks, latex gloves and other labor protection articles to protect the skin and respiratory organs. Production equipment should be closed, ventilation should be good. Take a hot shower after work.
Last Update：2022-01-01 11:02:19
Zinc nitrate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | zinc nitrate is a colorless tetragonal crystal, easily deliquescent, it is used for zinc plating of machine and bicycle parts, Preparation of steel phosphating agent, mordant for fabric dyeing, preservation of dye synthetic articles and latex coagulant. |
| physicochemical properties | chemical formula Zn(NO3)2 · 6H2O. Molecular weight 297.47. Colorless cubic crystals. The melting point is about 36.4 degrees C, and the relative density is 2.06514. Three molecules of crystal water are lost at 100 °c and six molecules of water are lost at 105-130 °c. The trihydrate is a colorless, odorless tetragonal crystal with a melting point of 45.5 °c and an anhydrous salt with a boiling point of 131 °c. Easy deliquescence, easily soluble in water, ethanol. The aqueous solution is acidic to litmus, and the pH of 5% aqueous solution is about 5.1. Heat decomposition release nitrogen oxide gas, and organic contact can burn, explosion. Toxic. Care should be taken during storage and transportation. |
| Brief preparation method | zinc oxide (or metal zinc particles) is used to react with nitric acid, and is clarified, concentrated and crystallized. The reaction formula is as follows: 2HNO3 ZnO → Zn(NO3)2 H2O |
| quality specification | 64% index name index zinc nitrate (Zn(NO3)2 · 6H2O) content,% ≥ 98.0 free acid (HNO3) content,% ≤ 0.03 lead (in Pb) content,% ≤ 0.5 iron (in Fe) content,% ≤ 0.01 chemical reagent, acid catalyst, Preparation of steel phosphating agent, electroplating, as dye, mordant, latex coagulant, in analytical chemistry, it is used to determine the turbidity of sulfur in blood, as an acidification catalyst in the production of intermediate drugs, and as a scab agent in medicine. |
| packaging and storage | lined with plastic bag, externally packed in iron drum with a net weight of 50 or 100kg each [4]. Package shall be marked with "oxidant. Store in a cool, dry, ventilated warehouse, away from the heat source fire, not with organic matter, reducing agent storage and mixed transport. Handle with gentle handling. Moisture-proof. |
| Thermokinetics of solid-liquid reaction of zinc nitrate with histidine | the solid-liquid reaction of zinc nitrate with histidine in water was studied by microcalorimeter. The thermodynamic parameters (activation enthalpy, activation entropy and activation free energy), rate constant and kinetic parameters (activation energy, pre-exponential factor and reaction order) of the reaction were obtained by experiment and calculation. |
| Ultrasonic Atomization of zinc nitrate solution | The Law of Ultrasonic Atomization of zinc nitrate aqueous solution was preliminarily studied by orthogonal method. The influence of Ultrasonic Atomization conditions on the volume of atomized zinc nitrate solution, the influence of the volume of the treated liquid and the carrier gas flow rate on the volume of atomized zinc nitrate solution is quite, the concentration of the solution has little effect on the volume of the atomized zinc nitrate solution. in terms of the volume of zinc nitrate solution that can be atomized, the optimum conditions for atomization are as follows: the carrier gas flow rate is 1.6 L/ m in, the volume of the treatment liquid is 20 m L, solution concentration of 1955 m ol / L although the greater the concentration of zinc nitrate solution, the more the amount of zinc ions to be atomized, but this increase is not due to the increase in the volume of the solution to be atomized, it is caused by the increase of the amount of zinc ions atomized per unit time. In addition, it is also found in the experiment that when the concentration of Zn2 solution is greater than 25 mol/ L, atomization can hardly occur, because the efficiency of Ultrasonic Atomization is inversely proportional to the liquid specific gravity and surface tension. The amount of liquid that can be treated depends mainly on the power of the ultrasonic atomizer., the power of the atomizer used is 80W. In the experiment, it is found that the smaller the volume of the treated liquid, the better the atomization effect. When the volume of the solution is greater than 50 m L, the atomization effect is obviously weakened, atomization cannot even occur. The carrier gas flow rate is too low, the generated vapor Sol can not be taken out of the atomization chamber in time, which will affect the atomization efficiency, but the carrier gas flow rate is too high, which will form a high pressure environment in the atomization chamber, On the contrary, the occurrence of Ultrasonic Atomization was inhibited. |
| determination of lead in zinc nitrate | inductively coupled plasma atomic emission spectrometry (ICP), A method for direct determination of lead content in hydrogenation catalyst raw material zinc nitrate was established. The standard working series containing zinc content similar to that of the sample was selected and applied, and the interference of matrix zinc salt on the determination of lead content was overcome, the relative standard deviation is less than 2%. The method has good precision and accuracy, and is suitable for the determination of lead content in zinc nitrate. It can meet the control requirements of lead content in zinc nitrate raw materials in the preparation of hydrogenation catalyst. |
| zinc nitrate-sodium hydroxide-water system | etc. The solution chemical properties of zinc nitrate-sodium hydroxide-water system were analyzed from the thermodynamic precipitation-dissolution equilibrium theory, the relationship between the form of zinc (II) in different initial pH solutions and the yield of zinc oxide and the end pH of the reaction was studied. The results show that different initial pH, the existence of zinc (II) in the initial solution is different, and the morphology of the initial precipitation is different, which leads to the different morphology of the product obtained by boiling Reflux reaction, the yield of zinc oxide is different. When the initial pH is 13, the yield of zinc oxide is 100%, which is consistent with the experimental results. |
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 98g/0 ℃;138g/30 ℃;211g/40 ℃ |
| references | [1] Ma Shichang, ed. A Dictionary of chemical substances. Xi'an: Shaanxi Science and Technology Press. 1999. Page 727. [2] Shen Li-wen, Edited by Wang Jitao. Compound Dictionary. Shanghai: Shanghai Dictionary Publishing House. 2002. Page 149. [3] Ma Shichang, editor-in-chief. Dictionary of inorganic compounds. Xi'an: Shaanxi Science and Technology Press. 1988. Page 233. [4] Chen Jiao, Edited by Wang Zhigang. Handbook of textile dyeing and finishing auxiliaries. Beijing: China Light Industry Press. 1995. Page 435. [5] Gao Shengli, Chen Sanping, Hu rongzu, etc. Thermokinetics of solid-liquid reaction of zinc nitrate with histidine [J]. Journal of Northwest University (Natural Science Edition),2002,32(5):438-440. [6] Yan Zhiying, Zhao Yiyun, Huo Yan, Yin Jianguo. Study on Ultrasonic Atomization of zinc nitrate solution [J]. Journal of Yunnan University (Natural Science Edition),1998,20 (Chemistry album):449-450 [7] Guo Suli, Liu qinge, Zhang Fan et al. Determination of lead in zinc nitrate by ICP [J]. Guangdong Chemical Industry, 2014,41(20):129-130. [8] Luo Hui, Jia Zhenbin. Solution chemistry of zinc nitrate-sodium hydroxide-water system [J]. Inorganic salt industry, 2008,40(8):32-34,49. |
| category | oxidant |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 1190 mg/kg; Oral-mouse LD50: 926 mg/kg |
| stimulation data | Skin-rabbits 500 mg/24 h severe; eye-rabbit 20 mg/24 h moderate |
| explosive hazard characteristics | mixed with reductant, sulfur, phosphorus, etc, friction can burst |
| flammability hazard characteristics | is combustible in combination with organic matter, reducing agent, combustible sulfur and phosphorus; toxic NOx smoke from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Light loading and light unloading; With organic matter, reducing agent, sulfur, separate storage of phosphorus flammability |
| fire extinguishing agent | water and sand mist |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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