Merck 106449 Sodium fluoride for analysis EMSURE ACS Reag. Ph Eur 250 gr

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LB.M.106449.0250

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CAS Number: 7681-49-4 EC Number: 231-667-8 Molar Mass: 41.99 g/mol Chemical Formula: NaF Hill Formula: FNa Grade: Reag. Ph Eur

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MERCK 106449

Sodium fluoride for analysis EMSURE® ACS Reag. Ph Eur

Description
Catalogue Number	106449
Replaces	SX0550-5

Product Information
CAS number	7681-49-4
EC index number	009-004-00-7
EC number	231-667-8
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	FNa
Chemical formula	NaF
Molar Mass	41.98 g/mol
HS Code	2826 19 10
Quality Level	MQ300

Physicochemical Information
Density	2.8 g/cm3 (20 °C)
Melting Point	996 °C
pH value	10.2 (40 g/l, H₂O, 20 °C)
Vapor pressure	1 hPa (1077 °C)
Solubility	42 g/l soluble

Toxicological Information
LD 50 oral	LD50 Rat 148.5 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H301: Toxic if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. EUH032: Contact with acids liberates very toxic gas.
Precautionary Statement(s)	P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Signal Word	Danger
RTECS	WB0350000
Storage class	6.1 D Non combustible, acute toxicity cat. 3 / toxic or substances with chronic effects
WGK	WGK 1 slightly hazardous to water

Safety Information
Hazard Symbols	Toxic
Categories of danger	toxic, irritant
R Phrase	R 25-32-36/38 Toxic if swallowed.Contact with acids liberates very toxic gas.Irritating to eyes and skin.
S Phrase	S 22-36-45 Do not breathe dust.Wear suitable protective clothing.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

Storage and Shipping Information
Storage	Store at +5 °C to +30 °C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 1690 , 6.1, III
Declaration (transport by air) IATA-DGR	UN 1690 , 6.1, III
Declaration (transport by sea) IMDG-Code	UN 1690 , 6.1, III

Specifications
Assay (precipitative titration)	≥ 99.5 %
In water insoluble matter	≤ 0.01 %
Free alkali (as NaOH)	≤ 0.04 %
Free acid (as hydrofloric acid)	≤ 0.05 %
Chloride (Cl)	≤ 0.003 %
Hexafluorosilicate (SiF₆)	≤ 0.075 %
Sulfate (SO₄)	≤ 0.01 %
Sulfite (SO₃)	≤ 0.005 %
Heavy metals (as Pb)	≤ 0.001 %
Ca (Calcium)	≤ 0.004 %
Cu (Copper)	≤ 0.0002 %
Fe (Iron)	≤ 0.002 %
K (Potassium)	≤ 0.02 %
Loss on drying (150 °C, 4 h)	≤ 0.2 %

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