Merck 105063 0500 Potassium Nitrate Gr For Analysis Emsure 500 GR.

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Description
Catalogue Number	105063
Synonyms	Nitric acid potassium salt

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Product Information
CAS number	7757-79-1
EC number	231-818-8
Grade	ISO,Reag. Ph Eur
Hill Formula	KNO₃
Chemical formula	KNO₃
Molar Mass	101.10 g/mol
HS Code	2834 21 00
Quality Level	MQ300

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Physicochemical Information
Density	2.109 g/cm3 (16 °C)
Melting Point	334 °C
pH value	5.0 - 7.5 (50 g/l, H₂O, 20 °C)
Bulk density	800 kg/m3
Solubility	320 g/l

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Toxicological Information
LD 50 oral	LD50 Rat 3015 mg/kg

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Safety Information according to GHS
Hazard Pictogram(s)	\n
Hazard Statement(s)	H272: May intensify fire; oxidizer.
Precautionary Statement(s)	P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.\nP220: Keep away from clothing and other combustible materials.\nP280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.\nP370 + P378: In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.\nP501: Dispose of contents/ container to an approved waste disposal plant.
Signal Word	Warning
RTECS	TT3700000
Storage class	5.1B Oxidizing hazardous materials
WGK	WGK 1 slightly hazardous to water

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Safety Information
Categories of danger	oxidizing

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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Transport Information
Declaration (railroad and road) ADR, RID	UN 1486 , 5.1, III
Declaration (transport by air) IATA-DGR	UN 1486 , 5.1, III
Declaration (transport by sea) IMDG-Code	UN 1486 , 5.1, III

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Specifications
Assay (alkalimetric)	≥ 99.0 %
pH-value (5 %; water)	5.0 - 7.5
Chloride (Cl)	≤ 0.001 %
Iodate (IO₃)	≤ 0.0005 %
Nitrite (NO₂)	≤ 0.001 %
Phosphate (PO₄)	≤ 0.0005 %
Sulfate (SO₄)	≤ 0.003 %
Heavy metals (as Pb)	≤ 0.0005 %
Ca (Calcium)	≤ 0.001 %
Cu (Copper)	≤ 0.0001 %
Fe (Iron)	≤ 0.0003 %
Mg (Magnesium)	≤ 0.0015 %
Na (Sodium)	≤ 0.02 %
NH₄ (Ammonium)	≤ 0.001 %
Pb (Lead)	≤ 0.0001 %
Corresponds to ISO,Reag. Ph Eur