Difference between revisions of "Ammonium thiosulfate"

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== Description ==
 
== Description ==
  
A white crystalline solid that is used as a photographic fixing agent. Ammonium thiosulfate is also used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=fungicide fungicide], a metal lubricant, and an analytical reagent. It acts as a reducing agent that is effective for cleaning metals and alloys containing [http://cameo.mfa.org/materials/fullrecord.asp?name=tin tin], [http://cameo.mfa.org/materials/fullrecord.asp?name=zinc zinc], [http://cameo.mfa.org/materials/fullrecord.asp?name=lead lead], or [http://cameo.mfa.org/materials/fullrecord.asp?name=silver silver].
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A white crystalline solid that is used as a photographic fixing agent. Ammonium thiosulfate is also used as a [[fungicide|fungicide]], a metal lubricant, and an analytical reagent. It acts as a reducing agent that is effective for cleaning metals and alloys containing [[tin|tin]], [[zinc|zinc]], [[lead|lead]], or [[silver|silver]].
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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ammonium thiosulphate (Br.)
 
ammonium thiosulphate (Br.)
  
== Other Properties ==
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== Risks ==
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* Contact may cause irritation. 
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* Noncombustible. 
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* Plant Food: [https://www.plantfoodco.com/media/2039/ammoium-thiosulfate-sds.pdf SDS]
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== Physical and Chemical Properties ==
  
 
Soluble in water. Insoluble in ethanol.
 
Soluble in water. Insoluble in ethanol.
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|-
 
|-
 
! scope="row"| Melting Point
 
! scope="row"| Melting Point
| 150 (dec)
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| 150 C (dec)
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
| 1.32
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| 1.32 g/ml
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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|}
 
|}
  
== Hazards and Safety ==
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==Resources and Citations==
 
 
Contact may cause irritation.  Noncombustible. 
 
 
 
Eastman Kodak: [http://siri.org/msds/f2/bwq/bwqcb.html MSDS 03/05/99]
 
 
 
== Authority ==
 
  
 
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
 
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993

Latest revision as of 13:42, 26 April 2022

Description

A white crystalline solid that is used as a photographic fixing agent. Ammonium thiosulfate is also used as a Fungicide, a metal lubricant, and an analytical reagent. It acts as a reducing agent that is effective for cleaning metals and alloys containing Tin, Zinc, Lead, or Silver.

Synonyms and Related Terms

ammonium thiosulphate (Br.)

Risks

  • Contact may cause irritation.
  • Noncombustible.
  • Plant Food: SDS

Physical and Chemical Properties

Soluble in water. Insoluble in ethanol.

Composition (NH4)2S2O3
CAS 7783-18-8
Melting Point 150 C (dec)
Density 1.32 g/ml
Molecular Weight mol. wt. = 148.21

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 598