팔라듐 염화물

팔라듐 염화물 속성

팔라듐 염화물 MSDS

Palladium (II) chloride

팔라듐 염화물 C화학적 특성, 용도, 생산

개요

팔라듐 (II) 염화물, 일컬어 팔라듐 이염화물 및 palladous 염화물은, 공식 PdCl2를 가진 화합물입니다. PdCl2는 팔라듐 화학에 있는 일반적인 시작 물자입니다 – 팔라듐 근거한 촉매는 유기 종합에 있는 특정 값의 입니다. 그것은 팔라듐의 염화에 의해 준비됩니다.

용도

(1개) 자취 팔라듐 수은, 탈륨, 요오드화물, 등의 결심과 같은 분석 시약으로 사용해. (2) 팔라듐 시험 지구는 일산화탄소를 시험하기 위하여 이용됩니다. (3) 매장된 지하 가스관 균열, 농업 식물 자원, 준비, 전기도금을 하는 시계 부속 및 팔라듐 촉매의 사진술의 학문의 균열을 찾기 위하여 또한 사용하는, 등.

준비

무수 소금은 (유리관에서 놓이는 사기그릇 배에서 포함되는) Cl2의 시내에 있는 둔한 적열에 느슨한 팔라듐 갯솜을 가열해서 준비됩니다. Krustinsons에 따르면, PdCl2의 분해 압력은 1 atm를 도달합니다. conc에 있는 정밀하게 분할된 Pd를 녹여서 738°C.에. 를 통해서 Cl2가 포입되는 HCl, 사람은 H2PdCl4와 H2PdCl6가 둘 다 검출될 수 있는 해결책을 얻습니다. 해결책에 PdCl2의 또한 잔류물이 집중하는에 의하여 열매를 산출합니다.

개요

Palladium chloride is a commonly used precious metal catalysts, molecular formula is PaCl2, the appearance is brown-red needle-like crystals or powder, easily deliquescence, the relative density is 4.0 (18 ℃), melting point is 500 ℃ (decomposition), soluble in water, ethanol, acetone and hydrogen bromide. Decomposition in ammonia chloride, potassium iodide, ammonia solution, and precipitation of palladium.
[Uses]
(1)used as the analysis reagents, such as determination of trace palladium, mercury, thallium, iodine, etc.
(2) palladium test strips is used to test carbon monoxide.
(3) also used to search for cracks of buried underground gas pipeline cracks, study of agricultural plant resources, preparation of palladium catalyst, electroplating watch parts and photography, and so on.
[Preparation method] by melting palladium dichloride hydrate, make it lost part of chloride to get Palladium chlorine finished products.

Figure 1 the molecular structure of Palladium chloride.

화학적 성질

Palladium chloride is a dark brown powder, hygroscopic (absorbs moisture from the air). It is incompatible with acids, aluminium, ammonia, magnesium, nitrates, zinc, heat, thiocyanates, and organic solvents. Thermal decomposition of palladium chloride may release chlorine, hydrogen chloride, and oxides of palladium. It is used as a catalyst, photographic, and electroplating reagent. Palladium and its alloys are used as catalysts in the (petro)chemical and, above all, in the automotive industries. Applications of palladium compounds for electronics and electrical technology include use in metallisation processes (thick film paste), electrical contacts and switching systems, in the synthesis of semiconducting metal-containing polymers in which the polypyrrole backbone has a conformational energy minimum and is nearly planar. Palladium chloride is a stable chemical substance and is incompatible with strong oxidising agents.

물리적 성질

l Properties Red rhombohedral crystal; hygroscopic; density 4.0g/cm³; melts at 679°C; dissolves slowly in water; also soluble in ethanol and acetone; dissolves rapidly in hydrochloric acid.

용도

Palladium chloride is used in photography; toning solutions; electroplating parts of docks and watches; detecting carbon monoxide leaks in buried gas pipes; manufacture of indelible ink; preparation of metal for use as a catalyst; catalyst in jewelry; in dental alloys.

제조 방법

Palladium dichloride is prepared by dissolving palladium metal in aqua regia or hydrochloric acid in the presence of chlorine. Alternatively, it may be prepared by heating palladium sponge with chlorine gas at 500°C.

생산 방법

The palladium powder is added to the reactor containing hydrochloric acid, with stirring, passing the air, an oxidation reaction is performed, generating palladium chloride solution, the solution is purified, filtered, concentrated by evaporation, cooling and crystallization, centrifugal separation, and dried to obtain a palladium chloride finished products.
Pd+2HCl+0.5O2→PdCl2+H2O

화학 반응

Palladium dichloride dissolves in HCl forming tetrachloropalladate ion,
PdCl2+2Cl¯→ [PdCl4]2¯
The complex ion catalyzes various types of organic reactions including oxidation of ethylene to acetaldehyde in aqueous solution (the Wacker Process):
PdCl42¯+ C2H4 + H2O → CH3CHO + Pd + 2HCl + 2Cl¯
Palladium dichloride forms polymeric carbonyl complexes when the dry chloride is heated in a stream of carbon monoxide charged with methane vapor. Such complexes include [PdCl2(CO)n] and [PdCl(CO)2]n. The reaction also occurs in aqueous phase resulting in decolorization of the solution.
When H2S is passed through palladium dichloride solution, it yields a brown-black precipitate of palladium monosulfide, PdS.
When heated with sulfur at 450 to 500°C, palladium dichloride forms palladium disulfide, PdS2, a grey-black crystalline compound, insoluble in strong acids but soluble in aqua regia, and which converts to monosulfide, PdS, on heating at 600°C.
When ammonia gas is passed through an aqueous solution of PdCl2, the product is tetrammine palladium(II) chloride, Pd(NH4)2Cl2. The same product also is obtained in dry state by passing ammonia gas over anhydrous PdCl2.

일반 설명

Dark brown crystals.

공기와 물의 반응

Deliquescent. Water soluble.

반응 프로필

Palladium chloride is a weak oxidizing agent. Palladium chloride is reduced in solution by hydrogen or carbon monoxide to metallic palladium. . Decomposed at high temperatures to metallic palladium and chlorine.

화재위험

Flash point data for Palladium chloride are not available. Palladium chloride is probably combustible.

Safety Profile

Poison by intraperitoneat, intravenous, and intratracheal routes. Moderately toxic by ingestion. Experimental reproductive effects. A skin irritant. Questionable carcinogen with experimental carcinogenic data. Human mutation data reported. When heated to decomposition it emits highly toxic fumes of Cl-. See also PALLADIUM

Purification Methods

The anhydrous salt is insoluble in H2O and dissolves in HCl with difficulty. The dihydrate forms red hygroscopic crystals that are readily reduced to Pd. Dissolve it in conc HCl through which dry Cl2 is bubbled. Filter this solution which contains H2PdCl4 and H2PdCl6 and on evaporation it yields a residue of pure PdCl2. [Grube in Handbook of Preparative Inorganic Chemistry (Ed Brauer) Academic Press Vol II p 1582 1965, Mozingo Org Synth Coll Vol III 685 1955.]

팔라듐 염화물 준비 용품 및 원자재

원자재

준비 용품

팔라듐 염화물 공급 업체

공급자	전화	이메일	국가	제품 수	이점
XI'AN TIANGUANGYUAN BIOTECH CO., LTD.	+86-029-86333380 18829239519	sales06@tgybio.com	China	903	58
Aladdin Scientific	+1-+1(833)-552-7181	sales@aladdinsci.com	United States	52925	58
SHANGHAI KEAN TECHNOLOGY CO., LTD.	+8613817748580	cooperation@kean-chem.com	China	40066	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	7433	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5893	58
Anhui Ruihan Technology Co., Ltd	+8617756083858	daisy@anhuiruihan.com	China	973	58
Hebei Jingbo New Material Technology Co., Ltd	+8619931165850	hbjbtech@163.com	China	1000	58
Hebei Saisier Technology Co., LTD	+86-18400010335 +86-18034520335	admin@hbsaisier.cn	China	1015	58
Hebei Longbang Technology Co., LTD	+86-18633929156 +86-18633929156	admin@hblongbang.com	China	941	58
HebeiShuoshengImportandExportco.,Ltd	+86-18532138899 +86-18532138899	L18532138899@163.com	China	939	58

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