Sodium aluminium phosphate

From Wikipedia, the free encyclopedia
(Redirected from E541)

Page Template:Chembox/styles.css has no content.

Template:Chembox IndexlistTemplate:Chembox CompToxTemplate:Chembox Datapage check
Sodium aluminium phosphate
Names
Other names
Page Template:Plainlist/styles.css has no content.
  • E541
  • aluminium sodium salt
Identifiers
Page Template:Plainlist/styles.css has no content.
3D model (JSmol)
 Page Template:Plainlist/styles.css has no content.
Abbreviations SALP, SAlP
ChemSpider Page Template:Plainlist/styles.css has no content.
EC Number Page Template:Plainlist/styles.css has no content.
Page Template:Plainlist/styles.css has no content.
RTECS number Page Template:Plainlist/styles.css has no content.
UNII Page Template:Plainlist/styles.css has no content.
  • 8:2:3: InChI=1S/2Al.3Na.8H3O4P/c;;;;;8*1-5(2,3)4/h;;;;;8*(H3,1,2,3,4)/q2*+3;3*+1;;;;;;;;/p-9
    Key: FTUJNWMMNUTGTH-UHFFFAOYSA-E
  • acidic: InChI=1S/3Al.Na.8H3O4P.4H2O/c;;;;8*1-5(2,3)4;;;;/h;;;;8*(H3,1,2,3,4);4*1H2/q3*+3;+1;;;;;;;;;;;;/p-10
    Key: IQQWMJSNEUUJAY-UHFFFAOYSA-D
  • 8:2:3: OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Al+3].[Al+3]
  • acidic: O.O.O.O.OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)(O)[O-].OP(=O)([O-])[O-].OP(=O)([O-])[O-].[Na+].[Al+3].[Al+3].[Al+3]
Properties
NaH14Al3(PO4)8·4H2O
Molar mass 144.943 g/mol
Appearance white powder
Odor odorless
insoluble
Solubility soluble in HCl
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Template:Chembox Footer/trackingTemplate:Short description

Sodium aluminium phosphate (SAlP) are sodium salts of aluminium phosphates. They are inorganic and most commonly have the formulas NaH14Al3(PO4)8·4H2O and Na3H15Al2(PO4)8.[1] These materials are prepared by combining alumina, phosphoric acid, and sodium hydroxide.[2]

In addition to the usual hydrate, an anhydrous SAlP is also known, Na3H15Al2(PO4)8 (CAS#10279-59-1), referred to as 8:2:3, reflecting the ratio of phosphate to aluminium to sodium. Additionally an SAlP of ill-defined stoichiometry is used (NaxAly(PO4)z (CAS# 7785-88-8).[3]

The acidic sodium aluminium phosphates are used as acids for baking powders for the chemical leavening of baked goods.[4] Upon heating, SAlP combines with the baking soda to give carbon dioxide. Most of its action occurs at baking temperatures, rather than when the dough or batter is mixed at room temperature. SAlPs are advantageous because they impart a neutral flavor.

As a food additive, it has the E number E541.[5][6] Basic sodium aluminium phosphates are also known, e.g., Na15Al3(PO4)8. These species are useful in cheese making.[2]

References

Page Template:Reflist/styles.css has no content.

  1. ^ Klaus Schrödter, Gerhard Bettermann, Thomas Staffel, Friedrich Wahl, Thomas Klein, Thomas Hofmann "Phosphoric Acid and Phosphates" in Ullmann’s Encyclopedia of Industrial Chemistry 2008, Wiley-VCH, Weinheim. Script error: No such module "CS1 identifiers".
  2. ^ a b "Phosphoric Acids and Phosphates" David R. Gard, 2005, Wiley-VCH. Script error: No such module "CS1 identifiers".
  3. ^ Page Module:Citation/CS1/styles.css has no content.Lampila, Lucina E. (2013). "Applications and functions of food-grade phosphates". Ann. N.Y. Acad. Sci. 1301 (1): 37–44. Bibcode:2013NYASA1301...37L. doi:10.1111/nyas.12230. PMID 24033359.
  4. ^ Page Module:Citation/CS1/styles.css has no content."Sodium Aluminium Phosphate (SALP) | Baking Ingredients". BAKERpedia. 7 June 2015. Retrieved 2020-04-07.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Brooks, David W. "Leavening Agents". Teaching and Research Web Site. University of Nebraska - Lincoln. Archived from the original on 2011-07-20. Retrieved 2011-03-06.
  6. ^ Page Module:Citation/CS1/styles.css has no content."E541 : Sodium aluminum phosphate". Food-Info. Wageningen University. Retrieved 2011-03-06.

Template:Phosphates

Retrieved from "https://cosmopedia.co/index.php?title=Sodium_aluminium_phosphate&oldid=9728679"