相似化合物
10025-73-7 10049-05-5物理性质
- 熔点83 °C
- 沸点83 °C
- 闪点°C
- 密度1.76 g/mL at 25 °C(文献)
- PH:2.0-3.0
- PSA:31.5
- LogP:1.2413
- 溶解性Methanol (Slightly), Water (Slightly)
- 敏感性吸潮
- 外观形态红紫色粉末/固体
- 储存条件惰性气氛,室温
- 产品应用用于制铬盐,镀铬和作媒染剂等.
- 性质描述玫瑰紫色片状晶体.几乎不溶于水,易溶于水,溶于乙醇,不溶于乙醚.熔点83-84°C,相对密度1.835(25°C),在83°C升华.与水长时间沸腾后成绿色溶液.在空气中灼热则变为三氧化二铬.在氯气流中可升华.六水物有深绿色,浅绿色和紫色三种变体,在水溶液中都变成深绿色和紫色混合物.制备:由氯通过氧化铬与碳的混合物或氢氧化铬与盐酸作用而制得.
欧盟法规
ECHA物质C&L通报专利信息
专利号:US-3888936-A
优先权日:1972-03-09
标题:Removal of free radical inhibitors to promote synthesis of alpha, omega-dichloroalkane telomers from ethylene and sulfuryl chloride
发明人:HUDSON JR JOSEPH A
权利人:CONTINENTAL OIL CO
摘要:In the synthesis of alpha,omega-dichloroalkanes such as 1,2dichlorobutane and 1,6-dichlorohexane from ethylene and sulfuryl chloride, yield is improved when the reaction environment is scrupulously rendered and maintained free from Lewis acids and other free radical inhibiting materials.
专利号:US-6033624-A
优先权日:1995-02-15
标题 :Methods for the manufacturing of nanostructured metals, metal carbides, and metal alloys
发明人:GONSALVES KENNETH E; RANGARAJAN SRI PRAKASH
权利人:UNIV CONNETICUT
摘要:Methods for the manufacture of nanostructured metals, metal carbides, and metal alloys are presented, such metals including nanostructured aluminum, chromium, iron, molybdenum, vanadium, and steel. Preferably, the nanostructured steel is of the M50 type, and comprises iron, molybdenum, chromium, vanadium and carbon. Synthesis of M50 steel further comprising nanostructured aluminum, aluminum oxide, or aluminum nitride is also described. In accordance with an important feature of this invention, the grain size of the metals and metal alloys is in the nanometer range. In accordance with the method of the present invention, the nanostructured metals, metal carbides, and metal alloys are prepared via chemical synthesis from aluminum, iron, molybdenum, chromium and vanadium starting materials. Decomposition of metal precursors or co-precipitation or precipitation of metal precursors is followed by consolidation of the resulting nanostructured powders. Alternatively, nanostructured M50 steel may be obtained by mixing of nanocrystalline chromium, iron, molybdenum, and vanadium powders, followed by ball-milling, and consolidation. The nanostructured metals, metal carbides, and metal alloys of this invention find particular utility in the manufacture of cutting tools and bearings, and in ferrofluids, magnetic memory systems, and catalysis.
专利号:US-3970616-A
优先权日:1971-12-23
标题:Synthesis of chrome-complexed dye developers in the presence of weakly basic anion exchange resins
发明人:BADER HENRY; FEINGOLD MICHAEL H
权利人:POLAROID CORP
摘要:An improved method for preparing a compound of the formula: ##SPC1## n Where each R can be hydrogen, an alkyl substituent, preferably having from 1-6 carbon atoms or an alkoxy substituent preferably having from 1-6 carbon atoms and each R 1 is hydrogen or an alkyl or an alkanol group. R 2 is an alkylene radical having from 1-6 carbon atoms and X represents the atoms to complete a cyclopentyl or cyclohexyl ring. n Metal complexed dyes of the above formula are especially useful in the preparation of photographic image patterns. n The improved feature of the method presented involves the preparation of compounds of formula 1 in the presence of weakly basic anion exchange resins to obtain high yields of especially high purity products.
专利号:US-5984996-A
优先权日:1995-02-15
标题:Nanostructured metals, metal carbides, and metal alloys
发明人:GONSALVES KENNETH E; RANGARAJAN SRI PRAKASH
权利人:UNIV CONNECTICUT
摘要:Methods for the manufacture of nanostructured metals, metal carbides, and metal alloys are presented, such metals including nanostructured aluminum, chromium, iron, molybdenum, vanadium, and steel. Preferably, the nanostructured steel is of the M50 type, and comprises iron, molybdenum, chromium, vanadium and carbon. Synthesis of M50 steel further comprising nanostructured aluminum, aluminum oxide, or aluminum nitride is also described. In accordance with an important feature of this invention, the grain size of the metals and metal alloys is in the nanometer range. In accordance with the method of the present invention, the nanostructured metals, metal carbides, and metal alloys are prepared via chemical synthesis from aluminum, iron, molybdenum, chromium and vanadium starting materials. Decomposition of metal precursors or co-precipitation or precipitation of metal precursors is followed by consolidation of the resulting nanostructured powders. Alternatively, nanostructured M50 steel may be obtained by mixing of nanocrystalline chromium, iron, molybdenum, and vanadium powders, followed by ball-milling, and consolidation. The nanostructured metals, metal carbides, and metal alloys of this invention find particular utility in the manufacture of cutting tools and bearings, and in ferrofluids, magnetic memory systems, and catalysis.
专利号:US-6077371-A
优先权日:1997-02-10
标 题 :Gas generants comprising transition metal nitrite complexes
发明人:LUNDSTROM NORMAN H; BEGIN LAURENCE C
权利人:AUTOMOTIVE SYSTEMS LAB
摘要:High nitrogen gas generant compositions, useful for inflating passenger restraint gas inflator bags, comprise a nitrogen rich coordination compound selected from coordination complexes comprised of anionic nitro and nitrito ligands coordinated with a transitional metal template, and nonmetallic or nonmetallic/metallic cations. The gas generant compositions generate relatively more gas and less solids, and are safer than known gas generant compositions. Certain gas generant compositions ignite at lower autoignition temperatures thereby facilitating the use of an aluminum or light weight metal pressure vessel. Other gas generants self-deflagrate eliminating the need for other constituents in the composition. Novel methods for the synthesis of nonmetal derivative coordination complexes, guanidine and hydrazine for example, are also presented.
专利号:US-2017065721-A1
优先权日:2010-08-04
标题:Synthesis and use of therapeutic metal ion containing polymeric particles
发明人:PETROS ROBBY A
权利人:UNIV NORTH TEXAS
摘要:Therapeutic particles contain metal ions and are characterized by the use of unique ligand sets capable of making the metal ion complex soluble in biological media to induce selective toxicity in diseased cells. The particles may comprise a polymeric base particle, at least one pharmaceutically active metal ion, including metal ions from more than one metal element, a ligand that is covalently attached to the polymeric base particle and attached to the metal ion via a stimuli-responsive bond, and a cell targeting component. When the metal ion-containing particle enters a pre-defined environment, the ligands binding the metal to the particle are broken, triggering release of the free metal ion while the original ligands remain covalently bound to the particle.