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Revision as of 14:53, 30 November 2010 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Script assisted update of identifiers from ChemSpider, CommonChemistry and FDA for the Chem/Drugbox validation project - Updated: InChI1->InChI StdInChI StdInChIKey.← Previous edit Latest revision as of 19:37, 19 January 2024 edit undoMe, Myself, and I are Here (talk | contribs)Extended confirmed users105,896 editsm →See also: alpha 
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{{distinguish|Copper arsenite}}
{{chembox {{chembox
| Watchedfields = changed
| ImageFile =
| verifiedrevid = 443420181
| ImageFile = Copper(II)-arsenate-constituent-ions-2D.png
| ImageSize = | ImageSize =
| IUPACName = Copper(II) arsenate | IUPACName = Copper(II) arsenate
| OtherNames = Copper arsenate | OtherNames = Copper arsenate
| Section1 = {{Chembox Identifiers |Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 24279 | ChemSpiderID = 24279
| InChI = 1/2AsH3O4.3Cu/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6 | InChI = 1/2AsH3O4.3Cu/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6
| InChIKey = RKYSWCFUYJGIQA-CYFPFDDLAM | InChIKey = RKYSWCFUYJGIQA-CYFPFDDLAM
| SMILES = ...()(=O).()()=O | SMILES = ...()(=O).()()=O
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/2AsH3O4.3Cu/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6 | StdInChI = 1S/2AsH3O4.3Cu/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = RKYSWCFUYJGIQA-UHFFFAOYSA-H | StdInChIKey = RKYSWCFUYJGIQA-UHFFFAOYSA-H
| CASNo = 7778-41-8 | CASNo = 7778-41-8
| CASNo_Ref = {{cascite|??|??}} | CASNo_Ref = {{cascite|correct|??}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = EV78GZO3YS
| PubChem = 26065 | PubChem = 26065
| RTECS = | RTECS =
}} }}
| Section2 = {{Chembox Properties |Section2={{Chembox Properties
| Formula = Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub> | Formula = Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>
| MolarMass = 468.48 g/mol | MolarMass = 468.48 g/mol
| Appearance = blue or bluish green powder | Appearance = blue or bluish green powder
| Density = 5.2 g/cm<sup>3</sup> | Density = 5.2 g/cm<sup>3</sup>
| MeltingPt = 1100 °C | MeltingPtC = 1100
| BoilingPt = | BoilingPt =
| Solubility = insoluble | Solubility = insoluble
| SolubleOther = soluble in ], dilute ]s | SolubleOther = soluble in ], dilute ]s
| SolubilityProduct = 7.95{{e|&minus;36}}<ref name="crc">{{cite book |author1=John Rumble |title=CRC Handbook of Chemistry and Physics |date=June 18, 2018 |publisher=CRC Press |isbn=978-1138561632 |pages=5–188|edition=99 |language=English}}</ref>
}} }}
| Section7 = {{Chembox Hazards |Section7={{Chembox Hazards
| EUIndex = Not listed
| FlashPt = | FlashPt =
| PEL = TWA 1 mg/m<sup>3</sup> (as Cu)<ref name=PGCH>{{PGCH|0150}}</ref>
| REL = TWA 1 mg/m<sup>3</sup> (as Cu)<ref name=PGCH/>
| IDLH = TWA 100 mg/m<sup>3</sup> (as Cu)<ref name=PGCH/>
}} }}
| Section8 = {{Chembox Related |Section8={{Chembox Related
| OtherAnions = | OtherAnions =
| OtherCations = | OtherCations =
}} }}
}} }}


'''Copper arsenate''' (Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>.4H<sub>2</sub>O, or Cu<sub>5</sub>H<sub>2</sub>(AsO<sub>4</sub>)<sub>4</sub>.2H<sub>2</sub>O), also called '''copper orthoarsenate''' or '''tricopper arsenate''' or '''tricopper orthoarsenate''', is an ] used in agriculture. It is also used as a ], ], and a ]. It is a blue or bluish-green powder insoluble in water and alcohol and soluble in aqueous ] and dilute acids. Its ] is {{CASREF|CAS=7778-41-8}} or {{CASREF|CAS=10103-61-4}}. '''Copper arsenate''' (Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>·4H<sub>2</sub>O, or Cu<sub>5</sub>H<sub>2</sub>(AsO<sub>4</sub>)<sub>4</sub>·2H<sub>2</sub>O), also called '''copper orthoarsenate''', '''tricopper arsenate''', '''cupric arsenate''', or '''tricopper orthoarsenate''', is a blue or bluish-green powder insoluble in water and alcohol and soluble in aqueous ] and dilute acids. Its ] is {{CASREF|CAS=7778-41-8}} or {{CASREF|CAS=10103-61-4}}.


==Uses==
⚫ '''Copper arsenate hydroxide''' or '''basic copper arsenate''' (Cu(OH)AsO<sub>4</sub>) is a basic variant with CAS number {{CASREF|CAS=16102-92-4}}. It is found naturally as the mineral ]. It is used as an insecticide, fungicide, and ]. Its use is banned in Thailand since 2001.
Copper arsenate is an ] used in agriculture. It is also used as a ], ], and a ]. It is also used as a poison in ] baits.

Copper arsenate is also used as a poison in ] baits.


Copper arsenate can also be a misnomer for ], especially when meant as a ]. Copper arsenate can also be a misnomer for ], especially when meant as a ].

==Natural occurrences==
Anhydrous copper arsenate, Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>, is found in nature as the mineral '''lammerite'''.<ref>{{ cite journal | first1 = F. C. | last1 = Hawthorne | journal = ] | volume = 71 | year = 1986 | pages = 206–209 | title = Lammerite, Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>, a modulated close-packed structure | url = http://www.minsocam.org/ammin/AM71/AM71_206.pdf }}</ref> Copper arsenate tetrahydrate, Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>·4H<sub>2</sub>O, occurs naturally as the mineral '''rollandite'''.<ref>{{ cite journal | title = Rollandite, Cu<sub>3</sub>(AsO<sub>4</sub>)<sub>2</sub>·4H<sub>2</sub>O, a new mineral | first1 = H. | last1 = Sarp | first2 = R. | last2 = Černý | journal = Eur. J. Mineral. | volume = 12 | year = 2000 | pages = 1045–1050 | doi = 10.1127/0935-1221/2000/0012-1045 | url = https://archive-ouverte.unige.ch/unige:86439 }}</ref>

==Related compounds==
⚫ '''Copper arsenate hydroxide''' or '''basic copper arsenate''' (Cu(OH)AsO<sub>4</sub>) is a basic variant with CAS number {{CASREF|CAS=16102-92-4}}. It is found naturally as the mineral ]. It is used as an insecticide, fungicide, and ]. Its use is banned in Thailand since 2001.<ref>{{cite web |url=http://www.ipmthailand.org/en/Pesticides/pesticides_banned_abc.htm |title=Banned pesticides (Sorted by common name) |access-date=2006-01-14 |url-status=dead |archive-url=https://web.archive.org/web/20051122181117/http://www.ipmthailand.org/en/Pesticides/pesticides_banned_abc.htm |archive-date=2005-11-22 }}</ref>


==See also== ==See also==
* ] *]
* ] *]
⚫ *]
* ] (copper arsenate-acetate) *] (copper acetoarsenite)
⚫ * ]
* ] (copper arsenite) *] (copper arsenite)

==References==
{{Reflist}}


==External links== ==External links==
{{Commons category}}
* *


{{Copper compounds}} {{Copper compounds}}
{{insecticides}} {{Insecticides}}


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