2013年11月17日

Platinum Carbon
Bis(triphenylphosphine)palladium(II) dichloride

pdcl2

palladium catalyst

Tetrakis(triphenylphosphine)palladium(0)

Palladium sulfate

Ruthenium oxide

2013年09月17日

Tetrakis(triphenylphosphine)palladium(0)
Palladium(II) nitrate hydrate
Palladium(II) Chloride;PdCl2
Tris(dibenzylideneacetone)dipalladium
Bis(triphenylphosphine)palladium(II) dichloride
Palladium sulfate
Ruthenium oxide;
Ruthenium on alumina
Platinum paste
Platinum Carbon
Potassium chloroplatinite
Tetrakis(triphenylphosphine)palladium(0)
Palladium(II) nitrate hydrate
Palladium(II) Chloride;PdCl2
Tris(dibenzylideneacetone)dipalladium
Bis(triphenylphosphine)palladium(II) dichloride
2-Bromofluorene
9-Fluorenone
Platinum paste

2013年07月18日

Name: Ruthenium
Symbol: Ru
Atomic Number: 44
Atomic Mass: 101.07 amu
Melting Point: 2250.0 °C (2523.15 K, 4082.0 °F)
Boiling Point: 3900.0 °C (4173.15 K, 7052.0 °F)
Number of Protons/Electrons: 44
Number of Neutrons: 57
Classification: Transition Metal
Crystal Structure: Hexagonal
Density @ 293 K: 12.2 g/cm3
Color: silvery

2013年07月11日
ruthenium
钌是一种化学元素,它的化学符号是Ru,它的原子序数是44。 它的英文名称是俄罗斯的意思。钌是在1844年由俄国科学家Karl Ernst Claus发现的。 钌是硬质的银白色的过渡金属。钌可在铂矿中发现,仅在高温时才能加工。亦在一些铂合金中用作催化剂。 维基百科

fluorene

符号: Ru
电子排布: Kr 4d7 5s1
CAS 编号: 7440-18-8
原子序数: 44
发现时间: 1844 年
原子质量: 101.07 ± 0.02 u
2013年07月04日

Carbazole is an aromatic heterocyclic organic compound. It has a tricyclic structure, consisting of two six-membered benzene rings fused on either side of a five-membered nitrogen-containing ring. The compound’s structure is based on the indole structure but in which a second benzene ring is fused onto the five-membered ring at the 2–3 position of indole (equivalent to the 9a–4a double bond in carbazole respectively).

CARBAZOLE
IDENTIFIERS
CAS number 86-74-8 Yes
PubChem 6854
ChemSpider 6593 Yes
UNII 0P2197HHHN Yes
DrugBank DB07301
KEGG C08060 Yes
ChEBI CHEBI:27543 Yes
ChEMBL CHEMBL243580 Yes
Jmol-3D images Image 1
PROPERTIES
Molecular formula C12H9N
Molar mass 167.206 g mol−1[1]
Density 1.301g/cm^3
Melting point 246.3 °C[1]
Boiling point 354.69 °C[1]
HAZARDS
Flash point 220 °C[1]
2013年04月14日

氯铂酸

【英文别名】Platinic chloride; Chloroplatinic acid; Chloroplatinic(IV) acid; Dihydrogen hexachloroplatinate; Dihydrogen hexachloroplatinate(2-); Hexachloroplatinic acid; Hexachloroplatinic(4+) acid, hydrogen-; Hexachloroplatinic(IV) acid; Hydrogen hexachloroplatinate(4+); Hydrogen hexachloroplatinate(IV); Platinate(2-), hexachloro-, dihydrogen, (oc-6-11)-; Platinate(2-), hexachloro-, dihydrogen (8CI); Platinate(2-), hexachloro-, dihydrogen, (OC-6-11)-; Platinate(2-), hexachloro-, hydrogen (1:2), (OC-6-11)-; Chloroplatinic acid, solid; platinum; tetrachloroplatinum dihydrochloride; tetrachloroplatinum dihydrochloride hydrate[2]
【结构或分子式】H2PtCl6·6H2O
【CAS号】16941-12-1;110972-89-9;127521-16-8;131620-42-3;1335-29-1;140889-50-5;143337-19-3;148880-59-5;60322-59-0;60605-43-8;70227-39-3;97301-98-9;98032-39-4
【等级】AR
【MDL号】MFCD00149910
【EC号】241-010-7
【密度g/cm^3】2.431
【熔点(℃)】60
【分子量】517.90

chloroplatinic acid物理参数

密度:2.431g/mL
熔点:60℃
溶于水、乙醇和乙醚。

chloroplatinic acid用途说明

主要用于制备贵金属催化剂及贵金属涂镀;沉淀钾、镓、铵、铯和铊,以与钠分离;沉淀生物碱;电镀;催化剂;制造铂石棉。
用于镀铂以及作铂催化剂、不灭墨水和铂镜等。在分析化学上用于检验钾,铵等离子。
石油化工中加氢脱氢催化剂的活性成分;是石油化工中加氢脱氢催化剂的活性成分。[3]
产品用途
石油化工中加氢脱氢催化剂的活性成分

chloroplatinic acid危险说明

危险等级:25-34-42/43
安全等级:22-26-36/37/39-45
危险级别:8
联合国编号:UN2507
危规编号:酸性腐蚀品。玻璃瓶或塑料瓶装,每瓶净重50g、100g、250g,再集中于木箱内衬垫料。搬运时轻装轻卸,防止容器受损。贮存于阴凉、干燥、通风的库房内。密封保存,防止受潮。与易燃品和食用原料隔离贮运。失火时,可用水、各种灭火器扑救。毒性及防护:该品不易燃烧,有毒,具有强烈腐蚀性、刺激性,可致人体灼伤。对环境有危害。吸入、摄入或经皮肤吸收后对身体有害,对眼睛、皮肤、黏膜和上呼吸道有刺激作用,可引起过敏反应。吸入粉尘和烟雾的患者,应立即脱离污染区,移至空气新鲜处,保持呼吸道通畅,安置休息并保暖。眼睛或皮肤接触后,可用大量水冲洗。误食时应立即漱口,给服温水催吐,并速送医院救治。

制备或来源

将铂于通风处在水浴上加热溶解于3体积盐酸和1体积硝酸的混合液中(盐酸和硝酸的相对密度分别为1.19和1.4)。加热蒸发,不断补加水和盐酸,直至变成浆状溶液,冷却,加入其体积一半的乙醇,再加入饱和氯化铵溶液,直至不再析出黄色氯铂酸铵的沉淀为止。滤出沉淀,用30%氯化铵溶液洗涤,过滤,于100~110℃下干燥后,再于800℃灼烧,得到纯海绵状铂。将制得的纯铂再溶于盐酸和浓硝酸的混合液中,过滤、蒸发滤液直至取出少量溶液冷却后,有结晶析出为止(蒸发达终点时,须通氯气至溶液饱和)。在不断搅拌下冷却至室温,得到结晶形成氯铂酸。
2013年04月08日

Material Safety Data Sheet

Palladium

Section 1 – Chemical Product and Company Identification

Product Name: Palladium

Section 2 -Product Identification :

Product Name Palladium

SynonymsPalladium on activated carbon

CAS7440-05-3

FormulaPd

Molecular Weight106.42

EINECS231-115-6

Section 3 – Physical and Chemical Properties

Appearance Wire

Solubility in water Insoluble

Melting Point 1555℃

Density1.025 g/mL at 25 °C

Boiling Point 2970 °C

Merck 14,6989

Section 4 – Stability

Stable. Flammable – fine powder may cause fire or explosion in air. Incompatible with ozone, sodium tetrahydroborate, sulphur, arsenic.

Section 5 – Hazards Identification

Emergency OverviewIrritating to skin, eyes and respiratory tract.Irritating to skin, eyes and respiratory tract.

Primary Routes of ExposureInhalation, skin, eyes.

Eye ContactCauses slight to mild irritation to the eyes.

Skin ContactCauses slight to mild irritation to the skin.

InhalationIrritating to the nose, mucous membranes and respiratory tract.

Ingestion No information available on the physiological effects of ingestion. May be harmful if swallowed.

Section 6 – Exposure Controls/Personal Protection

Eye Exposure

Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.

Skin Exposure

Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.

Inhalation

Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.

Poison Class Not available

Ingestion Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.

Section 7 – Fire Fighting Measures

Flash Point N/A

FlammabilityN/A

Extinguishing Media

Carbon dioxide, dry chemical powder, or appropriate foam.

Firefighting

If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.

Section 8 – Accidental Release Measures

Small spills/leaks

Small spills can be mixed with vermiculite, sodium carbonate or other suitable non-combustible adsorbent and swept up.

Section 9 – Handling and Storage

Handling and storage: Keep container tightly closed. Keep moist. Becomes flammable when dry.Keep container tightly closed. Keep moist. Becomes flammable when dry.

Section 10 – Stability and Reactivity

StabilityAir and moisture stable

Hazardous Polymerization no hazardous polymerization

Conditions to Avoid If dried, contact with alcohols may cause fire.

Incompatibility Carbon monoxide, carbon dioxide, palladium and palladium oxide.

Section 11 -Transportation Information

Non-hazardous for air and ground transportation.

Section 12 – Additional Information

However The information above is believed to be accurate and represents the best information currently available to us., we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages. Copyright 2010  YURUI (SHANGHAI) CHEMICAL CO.,LTD License granted to make unlimited paper copies for internal use only.


2013年04月02日

Product Name :
Palladium Chloride, also known as palladium dichloride and palladous chloride, are the chemical compounds with the formula PdCl2. PdCl2 is a common starting material in palladium chemistry – palladium-based catalysts are of particular value in organic synthesis. It is prepared bychlorination of palladium

.

Two forms of PdCl2 are known. In both forms, the palladium centres adopt the square-planar coordination geometry that is characteristic of Pd(II). Furthermore, in both forms, the Pd(II) centres are linked by μ2-chloride bridges. The α-form of PdCl2 is a polymer, consisting of “infinite” slabs or chains. The β-form of PdCl2 is molecular, consisting of an octahedral cluster of six Pd atoms. Each of the twelve edges of this octahedron is spanned by Cl. PtCl2 adopts similar structures, whereas NiCl2 adopts the CdCl2 motif, featuring hexacoordinated Ni(II

Palladium(II) chloride is a common starting point in the synthesis of other palladium compounds. It is not particularly soluble in water or non-coordinating solvents, so the first step in its utilization is often the preparation of labile but soluble Lewis base adducts, such as those derived fromacetonitrile or benzonitrile.[2] The acetonitrile complex is prepared by treating PdCl2 in refluxing acetonitrile:

PdCl2 + 2 MeCN → PdCl2(MeCN)2

Although occasionally recommended, inert-gas techniques are not necessary if the complex is to be used in situ. As an example,bis(triphenylphosphine)palladium(II) dichloride may be prepared from palladium(II) chloride by reacting it with triphenylphosphine in benzonitrile:[3]

PdCl2 + 2 PPh3 → PdCl2(PPh3)2

Further reduction in the presence of more triphenylphosphine gives tetrakis(triphenylphosphine)palladium(0); the second reaction may be carried out without purifying the intermediate dichloride:[4]

PdCl2(PPh3)2 + 2 PPh3 + 2.5 N2H4 → Pd(PPh3)4 + 0.5 N2 + 2 N2H5+Cl

Alternatively, palladium(II) chloride may be solubilized in the form of the tetrachloropalladate anion, e.g. sodium tetrachloropalladate, by reacting with the appropriate alkali metal chloride in water:[5] Palladium(II) chloride is insoluble in water, whereas the product dissolves:

PdCl2 + 2 MCl → M2PdCl4

This compound may also further react with phosphines to give phosphine complexes of palladium.[5]

Palladium chloride may also be used to give heterogeneous palladium catalysts: palladium on barium sulfate, palladium on carbon, and palladium chloride on carbon.


Alias Name :
Palladium(II) Chloride; palladium chloride; Palladium(II) Chloride;Cl2Pd
Formula :
Cl2Pd
Molecular weight :
177.33
CasNo. :
7647-10-1
Purity :
Pd≥59.5%
SMILES :
Cl[Pd]Cl

2013年03月22日

Adams’s catalyst, also known as platinum oxide, is usually represented as platinum(IV) oxide hydrate, PtO2•H2O. It is a catalyst for hydrogenationand hydrogenolysis in organic synthesis. This dark brown powder is commercially available. The oxide itself is not an active catalyst, but it becomes active after exposure to hydrogen whereupon it converts to platinum black, which is responsible for reactions.

Adams’s catalyst is used for many applications. It has shown to be valuable for hydrogenation and hydrogenolysis, dehydrogenation, and oxidation reactions. During the reaction, platinum metal (platinum black) is formed which has been cited to be the active catalyst.[3][4]Hydrogenation occurs with syn stereochemstry when used on an alkyne resulting in a cis-alkene. Some of the most important transformations include the hydrogenation of nitro compounds to amines and ketones to alcohols. Although, reductions of alkenes can be performed with Adam’s catalyst in the presence of nitro groups without reducing the nitro group. When reducing nitro compounds to amines, platinum catalysts are preferred over palladium catalysts to minimize hydrogenolysis. The catalyst is also used for the hydrogenolysis of phenyl phosphate esters, a reaction that does not occur with palladium catalysts. The pH of the solvent significantly affects the reaction course, and reactions of the catalyst are often enhanced by conducting the reduction in neat acetic acid, or solutions of acetic acid in other solvents.

二氧化铂也称亚当斯催化剂氧化铂,通常以一水合物的形式存在,是有机合成中氢化和氢解反应的催化剂,深褐色[粉末。加热超过650℃时分解为金属铂和氧气。二氧化铂自身无催化活性,但遇氢气后,可转变为有催化活性的铂黑

发展过程

发展二氧化铂前,有机物加氢常用胶体钯、胶体铂或铂黑作催化剂。胶体催化剂虽活性较强,但反应后很难与产物分离。这导致很多反应都是用铂黑催化进行,促使研究者改良铂黑的制备的方法。对此,亚当斯曾说:

我让学生去做催化还原,我们先是用铂黑催化剂,利用当时认为是最好的方法来制备,但铂黑的催化效果实在不好——同样方法制得的催化剂,有时有催化活性,有时就没有活性。于是我就开始研究活性铂黑更好的制备方法(从而导致了二氧化铂的发现)。[4]

安全

二氧化铂自身基本无害,但它被氢气还原后形成的铂黑可自燃。反应中应保持铂黑润湿,避免与氧气接触。

2013年03月16日

Palladium on carbon, often referred to as Pd/C, is a form of palladium used for catalysis. It is usually used for catalytic hydrogenations in organic chemistry. When the metal is distributed over finely-divided carbon, the surface area is larger and the catalyst is more reactive.Palladium carbon-COA Palladium-on-carbon has also been used as the palladium(0) catalyst in the Suzuki reaction, Stille reaction,and related reactions.

Preparation

Palladium on carbon is commercially available, with a CAS number of 7440-05-3. It can also be prepared in the laboratory. In a typical procedure, palladium(II) chloride and hydrochloric acidare added to sodium acetate trihydrate. Then nitric acid-washed activated carbon is added and the mixture is hydrogenated. This composite is then vacuum filtered and dried in a vacuum desiccator over a desiccant such as potassium hydroxide or calcium chloride. The palladium loading is typically between 5% and 10%.[2]

钯碳Palladium carbon,Pd/C)催化剂是一种用于有机合成中的催化氢化的催化剂。CAS号7440-05-3。一般为黑色粉末或是含有0.5%~30%钯的小球,不溶于所有的有机溶剂和酸性溶液。

钯碳能够催化氢化烯、炔、酮、腈、亚胺、叠氮化物、硝基化合物、苯环以及杂环芳香化合物。也可用作Suzuki反应、Stille反应[1]和其他相关反应中的钯(0)催化剂。

钯碳制备

各大试剂公司有售。 实验室中,也可通过氯化钯(Ⅱ)和盐酸与用硝酸洗净的活性炭作用,然后干燥、用氢气将钯(Ⅱ)还原为钯(0)、再经洗涤制备。[2]

钯碳注意事项

在空气中密闭存放时很安全,但要远离溶剂和含硫、磷的化合物。在溶剂存在下,可能起火。在有机溶剂中使用时必须在氮气保护下进行。过滤时滤渣不能进行干燥。[

Safety

Palladium on carbon is usually sold as a paste (water).Palladium carbon MSDS