Sodium aurothiosulfate: Difference between revisions

Latest revision as of 16:27, 16 February 2025

Sodium Aurothiosulfate[edit]

Structural formula of sodium aurothiosulfate

Sodium aurothiosulfate is a chemical compound with the formula Na_Au(S_O_)_·2H_O. It is a coordination complex of gold and thiosulfate, and it is used in various applications, including photography and medicine.

Chemical Properties[edit]

Sodium aurothiosulfate is a water-soluble compound that forms a yellow solution. It is known for its ability to form stable complexes with gold ions, which makes it useful in gold extraction and recovery processes. The compound is typically prepared by reacting gold salts with sodium thiosulfate in an aqueous solution.

Applications[edit]

Photography[edit]

In photography, sodium aurothiosulfate is used as a fixing agent. It helps to dissolve unreacted silver halides from photographic films and papers, thereby stabilizing the image. This process is crucial in the development of photographs, ensuring that the image remains clear and does not degrade over time.

Medicine[edit]

Sodium aurothiosulfate has been studied for its potential use in medicine, particularly in the treatment of rheumatoid arthritis. It is believed to have anti-inflammatory properties, which can help alleviate the symptoms of this chronic condition. However, its use in medicine is limited due to potential side effects and the availability of more effective treatments.

Safety and Handling[edit]

Sodium aurothiosulfate should be handled with care, as it can be hazardous if ingested or inhaled. Proper protective equipment, such as gloves and goggles, should be worn when handling the compound. It should be stored in a cool, dry place, away from incompatible substances.

Related Pages[edit]

Template:Gold compounds

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-'''Sodium aurothiosulfate''' is a chemical compound used in various applications, including medicine and photography. It is a type of [[gold salt]], which refers to a gold compound that is soluble in water. Sodium aurothiosulfate is also known as [[gold sodium thiosulfate]] and is represented by the chemical formula Na3Au(S2O3)2.
+== Sodium Aurothiosulfate ==
-==Chemical Properties==
+[[File:SodiumAurothiosulfate.svg|thumb|right|Structural formula of sodium aurothiosulfate]]
-Sodium aurothiosulfate is a complex salt of [[gold(III)]] and [[thiosulfate]]. It is a yellow crystalline solid that is soluble in water. The compound is stable under normal conditions, but it can decompose under heat or in the presence of strong acids.
-==Uses==
+'''Sodium aurothiosulfate''' is a chemical compound with the formula Na_Au(S_O_)_·2H_O. It is a coordination complex of gold and thiosulfate, and it is used in various applications, including photography and medicine.
-===Medicine===
-In medicine, sodium aurothiosulfate is used in the treatment of [[rheumatoid arthritis]]. It is administered intramuscularly as part of [[chrysotherapy]], a type of therapy that uses gold salts to reduce inflammation and slow down the progression of the disease.
-===Photography===
+== Chemical Properties ==
-In photography, sodium aurothiosulfate is used as a [[fixer]]. It helps to remove unexposed silver halide from photographic film or paper, thus stabilizing the image and making it resistant to further exposure to light.
-==Safety==
+Sodium aurothiosulfate is a water-soluble compound that forms a yellow solution. It is known for its ability to form stable complexes with gold ions, which makes it useful in gold extraction and recovery processes. The compound is typically prepared by reacting gold salts with sodium thiosulfate in an aqueous solution.
-As with other gold salts, sodium aurothiosulfate can cause side effects such as skin rash, mouth sores, and kidney problems. It is therefore important to use this compound under the supervision of a healthcare professional.
-==See Also==
+== Applications ==
-* [[Gold(III) chloride]]
-* [[Sodium thiosulfate]]
+=== Photography ===
-* [[Chrysotherapy]]
-* [[Photographic processing]]
+In photography, sodium aurothiosulfate is used as a fixing agent. It helps to dissolve unreacted silver halides from photographic films and papers, thereby stabilizing the image. This process is crucial in the development of photographs, ensuring that the image remains clear and does not degrade over time.
+=== Medicine ===
+Sodium aurothiosulfate has been studied for its potential use in medicine, particularly in the treatment of rheumatoid arthritis. It is believed to have anti-inflammatory properties, which can help alleviate the symptoms of this chronic condition. However, its use in medicine is limited due to potential side effects and the availability of more effective treatments.
+== Safety and Handling ==
+Sodium aurothiosulfate should be handled with care, as it can be hazardous if ingested or inhaled. Proper protective equipment, such as gloves and goggles, should be worn when handling the compound. It should be stored in a cool, dry place, away from incompatible substances.
+== Related Pages ==
+* [[Gold]]
+* [[Thiosulfate]]
+* [[Rheumatoid arthritis]]
+* [[Photography]]
+{{Chemistry}}
+{{Gold compounds}}
-[[Category:Chemical compounds]]
 [[Category:Gold compounds]]
-[[Category:Medicine]]
+[[Category:Coordination complexes]]
-[[Category:Photography]]
+[[Category:Photography chemicals]]
-{{Chemical-compound-stub}}
-{{Medicine-stub}}
-{{Photography-stub}}