Manganese Violet

from Wikipedia, the free encyclopedia
Structural formula
Ammonium cation Manganese (III) cation Diphosphate anion
General
Surname Manganese Violet
other names

Ammonium manganese (III) diphosphate

Molecular formula NH 4 MnP 2 O 7
Brief description

purple solid

External identifiers / databases
CAS number 10101-66-3
EC number 233-257-4
ECHA InfoCard 100.030.221
PubChem 160915
ChemSpider 141372
Wikidata Q15634059
properties
Molar mass 246.885 g mol −1
Physical state

firmly

density

2.7-2.9 g · cm −3

solubility

Slightly soluble in water, insoluble in water

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Manganese violet (chemically ammonium manganese ( III) diphosphate ), NH 4 MnP 2 O 7 , is a double salt of ammonium and manganese from the group of diphosphates .

properties

Manganese Violet

The pigment occurs in two different polymorphs . The α-polymorph has a monoclinic crystal structure with the space group P 2 1 / c (space group no. 14) , while the β-form has a triclinic crystal system with the space group P 1 (space group no. 2) . Template: room group / 14 Template: room group / 2

use

Manganese violet is used in cosmetics in eyeliner , eye shadow , lipstick and nail polish .

Individual evidence

  1. a b data sheet ammonium manganese (3+) diphosphate from AlfaChemistry, accessed on May 26, 2020.
  2. a b Data sheet Ammonium Manganese (III) Pyrophosphate from AmericanElements, accessed on May 26, 2020.
  3. InfoCard for Ammonium manganese (3+) diphosphate from the European Chemicals Agency (ECHA), accessed on August 9, 2019.
  4. Yasmin Begum, Adrian J. Wright: Relating highly distorted Jahn – Teller MnO 6 to coloration in manganese violet pigments . In: Journal of Materials Chemistry . tape 22 , no. 39 , 2012, p. 21110-21116 , doi : 10.1039 / C2JM33731B .
  5. ^ Household Products Database: Manganese violet