Dinitric acid palladium(II) salt
Palladium nitrate
CAS: 10102-05-3
Molecular Formula: HNO3Pd
Dinitric acid palladium(II) salt - Names and Identifiers
Dinitric acid palladium(II) salt - Physico-chemical Properties
| Molecular Formula | HNO3Pd |
| Molar Mass | 169.43 |
| Density | 1.118g/mLat 25°C |
| Water Solubility | Soluble in water, nitric acid. |
| Solubility | Soluble in dilute nitric acid. |
| Appearance | Crystals |
| Specific Gravity | 1.118 |
| Color | Red-brown |
| Exposure Limit | ACGIH: TWA 2 ppm; STEL 4 ppmOSHA: TWA 2 ppm(5 mg/m3)NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3) |
| Merck | 13,7060 |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Palladium nitrate crystal is yellow-brown crystalline powder, soluble in nitric acid, water and other solvents, easy deliquescence in the air; Palladium nitrate hydrate is red-brown liquid. |
| Use | Catalysts, raw materials for the synthesis of a variety of palladium compounds and catalysts, a large number of used to prepare Palladium plating bath |
Dinitric acid palladium(II) salt - Risk and Safety
| Risk Codes | R34 - Causes burns R36/37/38 - Irritating to eyes, respiratory system and skin. R8 - Contact with combustible material may cause fire |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S17 - Keep away from combustible material. |
| UN IDs | UN 3264 8/PG 2 |
| WGK Germany | 3 |
| RTECS | QV0560000 |
| TSCA | Yes |
| Hazard Class | 5.1 |
| Packing Group | II |
Dinitric acid palladium(II) salt - Preparation Method of palladium nitrate
from Palm Bridge research
Application (patent) number:
CN 201010221269
Public/Announcement Number:
CN102311147 A
applicant (patent):
Sinopec Sinopec Fushun Research Institute of Petrochemical Technology
inventor:
Song Lizhi , efumbin , Wang haizo , linked , Xue Dong
cited:
Abstract:
The invention discloses a preparation method of palladium nitrate. Put high purity palladium metal or palladium sponge into a container, slowly add concentrated nitric acid and hydrogen peroxide in batches, heat and dissolve, cool and filter the solution, heat and evaporate and concentrate until solid grains appear on the liquid surface, and cool and crystallize, the obtained crystals were washed with cold water, dried in vacuum, and ground to a powder to obtain a palladium nitrate product. Compared with the prior art, in the present invention, concentrated nitric acid and hydrogen peroxide are slowly added in batches during the dissolution process, which enhances the solubility of palladium, improves the reaction speed, and reduces the amount of concentrated nitric acid, it has the advantages of simple steps, high efficiency and low production cost. It is palladium nitrate containing crystal water, with uniform properties and purity close to 100%.
Last Update：2024-01-02 23:10:35
Dinitric acid palladium(II) salt - Device for preparing Palladium nitrate solution
from Palm Bridge research
patent type:
utility model
Application (patent) number:
CN201921293994.5
application date:
20190812
Public/Announcement Number:
CN210595300U
Public/announcement date:
20200522
applicant (patent):
Jiangxi Junxin Precious Metal Technology Materials Co., Ltd.
inventor:
Zhang , Li Mei , zeoliang Xu , Zhang Jinliang , Xu Zejiang , fly , Wu Jian
National and provincial code:
CN361129
Abstract:
The utility model relates to the field of chemical technology, in particular to a device for preparing a palladium nitrate solution, comprising a reactor, a fixed frame is fixedly connected to the reactor, and a reaction tank is provided in the reactor, the bottom of the reaction vessel is fixedly connected with a motor fixing frame at the center of the reaction vessel, the motor fixing frame is fixedly connected with a motor, the top of the reaction groove and the position of the motor output shaft are correspondingly provided with a through groove, A bearing is fixedly connected in the through groove, and a rotating shaft is connected in the bearing. By setting a liquid feed pipe, a feed pipe, a motor, and a stirring paddle, the present preparation of a palladium nitrate solution is solved, usually, the powdered Palladium nitrate is dissolved in water to obtain a palladium nitrate solution. When the Palladium nitrate is dissolved, it is easy to hydrolyze to form hydroxide precipitate, and the hydroxide precipitate will be further converted into oxide or metal, this results in the problem of a low concentration of the formulated Palladium nitrate solution.
Last Update：2023-08-16 22:05:47
Dinitric acid palladium(II) salt - Application of palladium nitrate matrix modifier in determination of lead in radix astragali by graphite furnace atomic absorption spectrometry
from VIP
Author:
Abstract:
objective to improve the graphite furnace atomic absorption spectrometry method for the determination of trace lead in radix astragali by choosing suitable matrix modifier. Methods Palladium nitrate, magnesium nitrate, ammonium dihydrogen phosphate, ammonium acetate, ascorbic acid and their combinations were compared. In the determination of lead residues in astragalus membranaceus by atomic absorption spectrometry, the amount of matrix modifier, ashing temperature and atomization temperature were compared. Results Palladium nitrate can effectively increase the ashing temperature and atomization temperature. The optimum dosage of palladium nitrate is 5 μg, ashing temperature is 1 300 ℃, and atomization temperature is 1 900 ℃. The linear correlation coefficient was 0.999 6 in the range of 6~100 μg/L, the recovery rate was 91.5% ~ 103.9%, the detection limit was 0.086 mg/kg,RSD was 2.4%. Conclusion Palladium nitrate is superior to other matrix modifiers. The instrument detection limit and method detection limit of this method are better than those of Chinese Pharmacopoeia.
Key words:
astragalus membranaceus Lead graphite furnace atomic absorption method Palladium nitrate matrix modifier
DOI:
10.3969/j.issn.1001-1528.2014.08.029
cited:
year:
2014
Last Update：2023-08-16 22:05:47
Dinitric acid palladium(II) salt - Study on large-scale production of palladium nitrate by activation-dissolution method
from VIP Journal Professional Edition
Author:
directed light , Hu Dingyi , Qing Shan , Yang Jinfu , King's mark Yu Jianmin , Lu Jun , Li Quan , Li Yongqing , Zhao Yunkun
Abstract:
The difficulty that part of the Palladium powder can not be completely dissolved was solved through the study of the conditions of the amount of dissolved Palladium, the reducing conditions of the active palladium powder, and the conditions of dissolving Palladium with nitric acid, the process conditions for large-scale production of palladium nitrate by activation-dissolution method were established. The particle size, specific surface area and surface morphology of activated Palladium powder showed that the particle size of activated Palladium powder became smaller and the surface area increased, the increase of the dissolution activity of palladium is beneficial to the complete dissolution of palladium powder.
Key words:
inorganic chemistry Palladium powder lytic activity Palladium nitrate scale production
DOI:
10.3969/j.issn.1004-0676.2014.04.008
cited:
year:
2014
Last Update：2023-08-16 22:05:47
Dinitric acid palladium(II) salt - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| properties | Palladium nitrate crystal is yellow-brown crystalline powder, soluble in nitric acid, water and other solvents, highly deliquescent in air; Palladium nitrate hydrate is a reddish brown liquid. |
| preparation | in theory, Palladium can be directly dissolved in nitric acid. Therefore, the commonly used preparation method of palladium nitrate is to add high purity Palladium powder to nitric acid, the solution was dissolved by heating to obtain a palladium nitrate solution. |
| purpose | catalyst, raw material for synthesis of various Palladium compounds and catalysts, A large number of palladium nitrate used to prepare Palladium plating bath Palladium nitrate can be used as a catalyst for olefin nitration reaction to ethylene glycol dinitrate; Also used as a precursor carrying Pd catalyst; Used as an analytical reagent and an oxidant; it is also used for the separation of chlorine and iodine; It is also used for the preparation of active components of automobile exhaust catalysts. |
| category | oxidant |
| 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 |
Last Update：2024-04-10 22:29:15
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