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Merck
CN

250171

Sodium hexafluorosilicate

Synonym(s):

Disodium hexafluorosilicon(2-), Sodium fluosilicate

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About This Item

Linear Formula:
Na2SiF6
CAS Number:
16893-85-9
Molecular Weight:
188.06
NACRES:
NA.23
PubChem Substance ID:
24855039
UNSPSC Code:
12352302
EC Number:
240-934-8
MDL number:
MFCD00003491
Form:
powder

Key Documents

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InChI key

TWGUZEUZLCYTCG-UHFFFAOYSA-N

InChI

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

SMILES string

[Na+].[Na+].F[Si--](F)(F)(F)(F)F

form

powder

density

2.68 g/mL at 25 °C (lit.)

Quality Level

200

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

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

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ4303
MKCP4296
MKCN2618
MKCK2607
MKBZ9221V

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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
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.
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
Shingo Shibata et al.
American journal of dentistry, 24(3), 148-152 (2011-08-31)
To evaluate the degree of penetration of an ammonium hexafluorosilicate [SiF: (NH4)2SiF6] solution containing various antibacterial agents into dentin and the depth of dentin tubule occlusion by the precipitate. Various antibacterial SiF solutions were prepared with the addition to chlorhexidine
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