Gold(I) chloride








































































































Gold(I) chloride

Crystal AuCl.jpg
Names
Other names
Gold(I) chloride

Identifiers

CAS Number

  • 10294-29-8 ☒N

3D model (JSmol)
  • Interactive image

ChEBI

  • CHEBI:30078 ☑Y

ChemSpider

  • 25464 ☑Y

ECHA InfoCard
100.030.583


PubChem CID
  • 27366

UNII

  • JD7Y972WU9 ☒N




Properties

Chemical formula

 AuCl

Molar mass
 232.423 g/mol
Appearance
 yellow solid

Density
 7.6 g/cm3[1]

Melting point
 170 °C (338 °F; 443 K)

Boiling point
 298 °C (568 °F; 571 K) (decomposes)

Solubility in water

 very slightly soluble

Solubility
 soluble in HCl, HBr organic solvents


Magnetic susceptibility (χ)

 −67.0·10−6 cm3/mol
Structure

Crystal structure
Tetragonal, tI16

Space group

 I41/amd, No. 141
Hazards

Safety data sheet
MSDS

NFPA 704


Flammability code 0: Will not burn. E.g., water
Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform
Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen
Special hazards (white): no codeNFPA 704 four-colored diamond


0


2


0

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).


☒N verify (what is ☑Y☒N ?)

Infobox references

Gold(I) chloride is a compound of gold and chlorine with the chemical formula AuCl.




Contents






  • 1 Preparation


  • 2 Reactions


  • 3 Safety


  • 4 References





Preparation


Gold(I) chloride is prepared by thermal decomposition of gold(III) chloride.



Reactions


Although there is a region of stability at higher temperatures at the appropriate chlorine vapor pressures, the compound is metastable at ambient conditions. When heated with water, the compound disporpotionates to metallic gold and gold(III) chloride in an autoredox reaction:


3 AuCl → 2 Au + AuCl3

Reaction with potassium bromide yields potassium auric bromide and potassium chloride with separation of metallic gold:


3 AuCl + 4 KBr → KAuBr4 + 2 Au + 3 KCl


Safety


Gold(I) chloride may irritate the skin and eyes, damage kidney function, and reduce white blood cell counts.



References





  1. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, .mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
    ISBN 0-07-049439-8











-

這個網誌中的熱門文章

12.7 cm/40 Type 89 naval gun

圖片
12.7 cm/40 Type 89 naval gun Type 89 gun mounted on Chitose Type Naval gun anti-aircraft gun Place of origin Japan Service history In service 1932–45 Used by Imperial Japanese Navy Wars World War II Production history Designed 1928–32 Produced 1932–45 No.  built ~1500 Variants Type 88 Specifications Mass 3,100 kilograms (6,834 lb) Barrel length 5,080 millimeters (16 ft 8 in) (bore length) Shell Fixed Shell weight 20.9–23.45 kilograms (46.1–51.7 lb) Caliber 12.7-centimeter (5.0 in) Breech horizontal breech block Elevation -8° to +90° [1] Rate of fire 8-14 rounds per minute Muzzle velocity 720–725 meters per second (2,360–2,380 ft/s) Maximum firing range 9,440 meters (30,970 ft) at 90° (AA ceiling) 14,800 meters (48,600 ft) at 45° The 12.7 cm/40 Type 89 naval gun was a Japanese anti-aircraft (AA) gun introduced before World War II. It was the Imperial Japanese Navy's standard heavy AA
閱讀完整內容

Shark

圖片
For other uses, see Shark (disambiguation). Sharks Temporal range: Ludfordian-Present, 425–0 Ma PreЄ Є O S D C P T J K Pg N [1] Clockwise from top left: spiny dogfish, Japanese sawshark, whale shark, great white shark, horn shark, frilled shark, scalloped hammerhead and Australian angelshark representing the orders Squaliformes, Pristiophoriformes, Orectolobiformes, Lamniformes, Heterodontiformes, Hexanchiformes, Carcharhiniformes and Squatiniformes respectively. Scientific classification Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Subclass: Elasmobranchii Infraclass: Euselachii Superorder: Selachimorpha Orders Carcharhiniformes Heterodontiformes Hexanchiformes Lamniformes Orectolobiformes Pristiophoriformes Squaliformes Squatiniformes † Cladoselachiformes † Hybodontiformes † Symmoriida † Xenacanthida (Xenacantiformes) † Elegestolepis † = extinct Synonyms Pleurotremata Sharks
閱讀完整內容

Wiciokrzew

圖片
Wiciokrzew, suchodrzew Morfologia (wiciokrzew pospolity) Systematyka [1] Domena eukarionty Królestwo rośliny Klad rośliny naczyniowe Klad rośliny nasienne Klasa okrytonasienne Klad astrowe Rząd szczeciowce Rodzina przewiertniowate Rodzaj wiciokrzew Nazwa systematyczna Lonicera L. Sp. Pl. 173. 1 Mai 1753 Typ nomenklatoryczny Lonicera caprifolium L. [2] Multimedia w Wikimedia Commons Hasło w Wikisłowniku Kwiaty suchodrzewu pospolitego Owoce suchodrzewu pospolitego Kwiaty wiciokrzewu pomorskiego Kwiaty wiciokrzewu przewiercienia Wiciokrzew , suchodrzew ( Lonicera L.) – rodzaj roślin wieloletnich należący do rodziny przewiertniowatych ( Caprifoliaceae ). Rośliny zielne i pnące nazywane są wiciokrzewami, natomiast krzewy i niewielkie drzewa – suchodrzewami. Rodzaj liczy około 180 gatunków szeroko rozprzestrzenionych na całej półkuli północnej [3] [4]
閱讀完整內容