Merck 105134 Potassium Sulfide Small Lumps For Analysis Emsure® 1 kg

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MERCK

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LB.M.105134.1000

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MERCK 105134

Potassium sulfide small lumps for analysis EMSURE®

Description
Catalogue Number	105134
Synonyms	Potassium monosulfide

Product Information
CAS number	39365-88-3
Hill Formula	(lK₂S)(mK₂Sx)(n*K₂S₂O₃)
Chemical formula	(lK₂S)(mK₂Sx)(n*K₂S₂O₃)
HS Code	2830 90 85
Quality Level	MQ300

Physicochemical Information
Density	1.65 g/cm3 (20 °C)
Melting Point	200 - 250 °C
pH value	13 (10 g/l, H₂O, 20 °C)
Bulk density	1000 - 1200 kg/m3
Solubility	500 g/l

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H314: Causes severe skin burns and eye damage. H400: Very toxic to aquatic life. EUH031: Contact with acids liberates toxic gas.
Precautionary Statement(s)	P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P273: Avoid release to the environment. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. 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
Storage class	8A Combustible, corrosive hazardous materials
WGK	WGK 2 obviously hazardous to water
Disposal	6 Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.

Safety Information
Hazard Symbols	Dangerous for the environment Corrosive
Categories of danger	corrosive, dangerous for the environment
R Phrase	R 31-34-50 Contact with acids liberates toxic gas.Causes burns.Very toxic to aquatic organisms.
S Phrase	S 26-36/37/39-45-61 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid release to the environment. Refer to special instructions/ Safety data sheets.

Storage and Shipping Information
Storage	Storage temperature: no restrictions.

Transport Information
Declaration (railroad and road) ADR, RID	UN 3262 , 8, II
Declaration (transport by air) IATA-DGR	UN 3262 , 8, II
Declaration (transport by sea) IMDG-Code	UN 3262 , 8, II, Segregation Group: 18 (Alkalis)

Specifications
Assay (complexometric, as K₂S)	≥ 44 %
Sulfite (SO₃)	≤ 1 %
Thiosulfate (S₂O₃)	about 20
Total nitrogen (N)	≤ 0.01 %

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Merck 105134 Potassium Sulfide Small Lumps For Analysis Emsure® 250 gr

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Merck 105134 Potassium Sulfide Small Lumps For Analysis Emsure® 1 kg

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