Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

View All Documentation

372579

Sigma-Aldrich

Ammonium hexafluorosilicate

98%

Synonym(s):

Cryptohalite

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
(NH4)2SiF6
CAS Number:
16919-19-0
Molecular Weight:
178.15
EC Number:
240-968-3
MDL number:
MFCD00010887
UNSPSC Code:
12352302
eCl@ss:
38130311
PubChem Substance ID:
24863149
NACRES:
NA.23

assay

98%

form

solid

density

2.01 g/mL at 25 °C (lit.)

SMILES string

[H][N+]([H])([H])[H].[H][N+]([H])([H])[H].F[Si--](F)(F)(F)(F)F

InChI

1S/F6Si.2H3N/c1-7(2,3,4,5)6;;/h;2*1H3/q-2;;/p+2

InChI key

ITHIMUMYFVCXSL-UHFFFAOYSA-P

Looking for similar products? Visit Product Comparison Guide

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 3

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCP4403
MKCF3256
MKBZ0480V
MKBK9147V
MKBK1462V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

L C Chow et al.
Caries research, 36(2), 136-141 (2002-05-31)
A previous study showed that a sodium hexafluorosilicate-calcium chloride-based two-solution fluoride (F) rinse containing 6 mmol/l of F was more effective than a 12 mmol/l F sodium fluoride rinse in depositing F on tooth surfaces and increasing oral F levels.
Ali Ouasri et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 59(4), 851-857 (2003-03-01)
The X-ray powder diffraction pattern of [(CH(3))(3)NH](2)SiF(6) was obtained and indexed on the basis of a centred cubic unit cell with the P4(1)32 as the likely space group. The Infrared and Raman spectra of this compound have been recorded at
P S Lakshminarayanan et al.
Inorganic chemistry, 45(11), 4372-4380 (2006-05-23)
Synthesis and crystal structure of a tren-based amide, L(1), N,N',N''-tris[(2-amino-ethyl)-3-nitro-benzamide] is reported. The crystallographic results show intramolecular hydrogen bonding and aromatic pi...pi stacking among tripodal arms which prevent opening of the receptor cavity. Intermolecular hydrogen bonding in L1 generates the
Ram Thaimattam et al.
Acta crystallographica. Section B, Structural science, 64(Pt 4), 483-490 (2008-07-22)
The co-crystal structure of N-methylpiperidine betaine with N-methylpiperidine betaine hexafluorosilicate represents an unusual case of a salt co-crystal with a high Z' value (3), unexpected conformational variability, and with nearly 50% of its contents disordered. The betaine units from the
Je Seon Song et al.
Anticancer research, 25(1A), 391-395 (2005-04-09)
Fluorine compounds are widely used for the prevention of caries, and recently sodium fluorosilicate has been used in water fluorination. The cytotoxic effects of sodium fluorosilicate in several osteosarcoma and oral cancer cells were evaluated in this study by measurement
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service