Merck 104994 Potassium fluoride for analysis EMSURE® ACS CAS No.: 7789-23-3 1 kg

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LB.M.104994.1000

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CAS Number: 7789-23-3 EC Number: 232-151-5 Molar Mass: 58.1 g/mol Chemical Formula: KF Hill Formula: FK Grade: ACS

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MERCK 104994

Potassium fluoride for analysis EMSURE® ACS

Merck 104994 Potassium fluoride or analysis EMSURE® ACS 1 kg
Catalogue Number	104994

Product Information
CAS number	7789-23-3
EC index number	009-005-00-2
EC number	232-151-5
Grade	ACS
Hill Formula	FK
Chemical formula	KF
Molar Mass	58.1 g/mol
HS Code	2826 19 90
Quality Level	MQ300

Physicochemical Information
Boiling point	1505 °C (1013 hPa)
Density	2.48 g/cm3 (20 °C)
Melting Point	846 °C
pH value	8 - 9 (50 g/l, H₂O, 20 °C)
Vapor pressure	1.3 hPa (885 °C)
Bulk density	400 kg/m3
Solubility	923 g/l

Toxicological Information
LD 50 oral	LD50 Rat 245 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H301 + H311 + H331: Toxic if swallowed, in contact with skin or if inhaled.
Precautionary Statement(s)	P280: Wear protective gloves/ protective clothing. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Signal Word	Danger
RTECS	TT0700000
Storage class	6.1 D Non combustible, acute toxicity cat. 3 / toxic or substances with chronic effects
WGK	WGK 1 slightly hazardous to water
Disposal	23 Hydrogen fluoride and inorganic fluorides as well as solutions thereof must be handled with extreme caution. Do not permit contact of any kind under any circumstances and be sure to work under an efficient fume cupboard with the front screen closed. Residues dissolved in water can be precipitated as calcium fluoride. Solids or precipitate: container I; filtrate: container D or E.

Safety Information
Hazard Symbols	Toxic
Categories of danger	toxic
R Phrase	R 23/24/25 Toxic by inhalation, in contact with skin and if swallowed.
S Phrase	S 26-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.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 1812 , 6.1, III
Declaration (transport by air) IATA-DGR	UN 1812 , 6.1, III
Declaration (transport by sea) IMDG-Code	UN 1812 , 6.1, III

Specifications
Assay (precipitative titration)	≥ 99.0 %
Free alkali (as KOH)	≤ 0.05 %
Free acid (as HF)	≤ 0.05 %
Chloride (Cl)	≤ 0.005 %
Hexafluorosilicate (SiF₆)	≤ 0.05 %
Sulfate (SO₄)	≤ 0.005 %
Heavy metals (as Pb)	≤ 0.001 %
Fe (Iron)	≤ 0.001 %
Na (Sodium)	≤ 0.2 %

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