Pyrogallic acid - Revision history

MDerrick at 19:31, 23 October 2022

2022-10-23T19:31:15Z

← Older revision		Revision as of 15:31, 23 October 2022
Line 2:		Line 2:

	Tiny, white, light-sensitive crystals that tend to float with air movement. Pyrogallic acid, or pyro, is used as a developer in photographic solutions. It reduces the salts of [[gold\|gold]], [[silver\|silver]], [[mercury\|mercury]], and [[platinum\|platinum]] to their metallic state. This characteristic was first noted in 1832 and soon after it was applied to photograph development. Pyrogallic acid is also used in the manufacture of [[dye\|dyes]].		Tiny, white, light-sensitive crystals that tend to float with air movement. Pyrogallic acid, or pyro, is used as a developer in photographic solutions. It reduces the salts of [[gold\|gold]], [[silver\|silver]], [[mercury\|mercury]], and [[platinum\|platinum]] to their metallic state. This characteristic was first noted in 1832 and soon after it was applied to photograph development. Pyrogallic acid is also used in the manufacture of [[dye\|dyes]].
			[[[SliderGallery rightalign\|pyrogallic acid.jpg~Chemical structure]]]
	== Synonyms and Related Terms ==		== Synonyms and Related Terms ==

	pyrogallol; pyro; 1,2,3-trihydroxybenzene; 1,2,3-benzenetriol; Fouramine brown AP; Fourrin; CI 76515; Oxidation base 32; Piral		pyrogallol; pyro; 1,2,3-trihydroxybenzene; 1,2,3-benzenetriol; Fouramine brown AP; Fourrin; CI 76515; Oxidation base 32; Piral

	~~[[[SliderGallery rightalign\|pyrogallic acid.jpg~Chemical structure]]]~~

	== Risks ==		== Risks ==

	Toxic by ingestion, inhalation and skin absorption. Skin contact can cause irritation and allergies.		* Toxic by ingestion, inhalation and skin absorption.
			* Skin contact can cause irritation and allergies.
	Combustible.		* Combustible.
			* Fisher Scientific: [https://beta-static.fishersci.com/content/dam/fishersci/en_US/documents/programs/education/regulatory-documents/sds/chemicals/chemicals-p/S25509.pdf SDS]
	Fisher Scientific: [https://beta-static.fishersci.com/content/dam/fishersci/en_US/documents/programs/education/regulatory-documents/sds/chemicals/chemicals-p/S25509.pdf SDS]
	== Physical and Chemical Properties ==		== Physical and Chemical Properties ==

Line 29:		Line 26:
	\|-		\|-
	! scope="row"\| Melting Point		! scope="row"\| Melting Point
	\| 131-134		\| 131-134 C
	\|-		\|-
	! scope="row"\| Density		! scope="row"\| Density
	\| 1.45		\| 1.45g/ml
	\|-		\|-
	! scope="row"\| Molecular Weight		! scope="row"\| Molecular Weight
Line 38:		Line 35:
	\|-		\|-
	! scope="row"\| Boiling Point		! scope="row"\| Boiling Point
	\| 309		\| 309 C
	\|}		\|}

MDerrick at 15:01, 19 August 2020

2020-08-19T15:01:55Z

← Older revision		Revision as of 11:01, 19 August 2020
Line 15:		Line 15:
	Combustible.		Combustible.

	~~MCCCSD.net~~: [https://~~www~~.~~mccsd~~.~~net~~/~~cms~~/~~lib~~/~~NY02208580~~/~~Centricity~~/~~Shared~~/~~Material%20Safety%20Data%20Sheets%20_MSDS_~~/~~MSDS%20Sheets_Pyrogallic_Acid_600_00~~.pdf ~~MSDS~~]		Fisher Scientific: [https://beta-static.fishersci.com/content/dam/fishersci/en_US/documents/programs/education/regulatory-documents/sds/chemicals/chemicals-p/S25509.pdf SDS]
	== Physical and Chemical Properties ==		== Physical and Chemical Properties ==

MDerrick at 15:00, 19 August 2020

2020-08-19T15:00:59Z

← Older revision		Revision as of 11:00, 19 August 2020
Line 9:		Line 9:
	[[[SliderGallery rightalign\|pyrogallic acid.jpg~Chemical structure]]]		[[[SliderGallery rightalign\|pyrogallic acid.jpg~Chemical structure]]]

	== ~~Other~~ Properties ==		== Risks ==

			Toxic by ingestion, inhalation and skin absorption. Skin contact can cause irritation and allergies.

			Combustible.

			MCCCSD.net: [https://www.mccsd.net/cms/lib/NY02208580/Centricity/Shared/Material%20Safety%20Data%20Sheets%20_MSDS_/MSDS%20Sheets_Pyrogallic_Acid_600_00.pdf MSDS]
			== Physical and Chemical Properties ==

	Soluble in water, ethanol, ether. Needle-shaped crystals.		Soluble in water, ethanol, ether. Needle-shaped crystals.
Line 34:		Line 41:
	\|}		\|}

	== ~~Hazards~~ and ~~Safety ==~~		== Resources and Citations ==

	~~Toxic by ingestion, inhalation and skin absorption. Skin contact can cause irritation and allergies.~~

	~~Combustible.~~

	~~LINK: [http://www.cdc.gov/niosh/ipcsneng/neng0770.html International Chemical Safety Card]~~

	~~== Sources Checked for Data in Record~~ ==

	* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982		* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982

Jruggiero: Text replace - "\[http:\/\/cameo\.mfa\.org\/materials\/fullrecord\.asp\?name=([^\s]+)\s(.*)\]" to "$2"

2016-05-10T16:40:39Z

Text replace - "\[http:\/\/cameo\.mfa\.org\/materials\/fullrecord\.asp\?name=([^\s]+)\s(.*)\]" to "$2"

← Older revision		Revision as of 12:40, 10 May 2016
Line 1:		Line 1:
	== Description ==		== Description ==

	Tiny, white, light-sensitive crystals that tend to float with air movement. Pyrogallic acid, or pyro, is used as a developer in photographic solutions. It reduces the salts of [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~gold gold], [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~silver silver], [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~mercury mercury], and [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~platinum platinum] to their metallic state. This characteristic was first noted in 1832 and soon after it was applied to photograph development. Pyrogallic acid is also used in the manufacture of [~~http://cameo.mfa.org/materials/fullrecord.asp?name=~~dye dyes].		Tiny, white, light-sensitive crystals that tend to float with air movement. Pyrogallic acid, or pyro, is used as a developer in photographic solutions. It reduces the salts of [[gold\|gold]], [[silver\|silver]], [[mercury\|mercury]], and [[platinum\|platinum]] to their metallic state. This characteristic was first noted in 1832 and soon after it was applied to photograph development. Pyrogallic acid is also used in the manufacture of [[dye\|dyes]].

	== Synonyms and Related Terms ==		== Synonyms and Related Terms ==

Jruggiero: Text replace - "== Authority ==" to "== Sources Checked for Data in Record =="

2016-05-01T22:43:13Z

Text replace - "== Authority ==" to "== Sources Checked for Data in Record =="

← Older revision		Revision as of 18:43, 1 May 2016
Line 42:		Line 42:
	LINK: [http://www.cdc.gov/niosh/ipcsneng/neng0770.html International Chemical Safety Card]		LINK: [http://www.cdc.gov/niosh/ipcsneng/neng0770.html International Chemical Safety Card]

	== ~~Authority~~ ==		== Sources Checked for Data in Record ==

	* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982		* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982

Unknown user at 12:33, 24 July 2013

2013-07-24T12:33:11Z

← Older revision		Revision as of 08:33, 24 July 2013
Line 44:		Line 44:
	== Authority ==		== Authority ==

	* ~~Matt Roberts, Don Etherington,~~ Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982		* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982

	* ~~Michael McCann,~~ Michael McCann, ''Artist Beware'', Watson-Guptill Publications, New York City, 1979		* Michael McCann, ''Artist Beware'', Watson-Guptill Publications, New York City, 1979

	* ~~G.S.Brady,~~ G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 796		* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 796

	* ~~Richard S. Lewis,~~ 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



	[[Category:Materials database]]		[[Category:Materials database]]

Unknown user at 18:11, 27 April 2013

2013-04-27T18:11:25Z

New page

== Description ==

Tiny, white, light-sensitive crystals that tend to float with air movement. Pyrogallic acid, or pyro, is used as a developer in photographic solutions. It reduces the salts of [http://cameo.mfa.org/materials/fullrecord.asp?name=gold gold], [http://cameo.mfa.org/materials/fullrecord.asp?name=silver silver], [http://cameo.mfa.org/materials/fullrecord.asp?name=mercury mercury], and [http://cameo.mfa.org/materials/fullrecord.asp?name=platinum platinum] to their metallic state. This characteristic was first noted in 1832 and soon after it was applied to photograph development. Pyrogallic acid is also used in the manufacture of [http://cameo.mfa.org/materials/fullrecord.asp?name=dye dyes].

== Synonyms and Related Terms ==

pyrogallol; pyro; 1,2,3-trihydroxybenzene; 1,2,3-benzenetriol; Fouramine brown AP; Fourrin; CI 76515; Oxidation base 32; Piral

[[[SliderGallery rightalign|pyrogallic acid.jpg~Chemical structure]]]

== Other Properties ==

Soluble in water, ethanol, ether. Needle-shaped crystals.

{| class="wikitable"
|-
! scope="row"| Composition
| C6H3(OH)3
|-
! scope="row"| CAS
| 87-66-1
|-
! scope="row"| Melting Point
| 131-134
|-
! scope="row"| Density
| 1.45
|-
! scope="row"| Molecular Weight
| mol. wt.=126.1
|-
! scope="row"| Boiling Point
| 309
|}

== Hazards and Safety ==

Toxic by ingestion, inhalation and skin absorption. Skin contact can cause irritation and allergies.

Combustible.

LINK: [http://www.cdc.gov/niosh/ipcsneng/neng0770.html International Chemical Safety Card]

== Authority ==

* Matt Roberts, Don Etherington, Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982

* Michael McCann, Michael McCann, ''Artist Beware'', Watson-Guptill Publications, New York City, 1979

* G.S.Brady, G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 796

* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993

[[Category:Materials database]]