Merck 105057 Potassium disulfite (metabisulfite) for analysis EMSURE® CAS No.: 16731-55-8 2.5 kg

Category

Tuzlar

Brand

MERCK

Stock Code

LB.M.105057.2500

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Synonyms: Potassium metabisulfite, Potassium pyrosulfite CAS Number: 16731-55-8 EC Number: 240-795-3 Molar Mass: 222.33 g/mol Chemical Formula: K₂S₂O₅ Hill Formula: K₂O₅S₂

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MERCK 105057

Potassium disulfate for analysis EMSURE^®

Description
Catalogue Number	105057
Synonyms	Potassium metabisulfite, Potassium pyrosulfite

Product Information
CAS number	16731-55-8
EC number	240-795-3
Hill Formula	K₂O₅S₂
Chemical formula	K₂S₂O₅
Molar Mass	222.33 g/mol
HS Code	2832 20 00
Quality Level	MQ300

Physicochemical Information
Melting Point	150 °C (decomposition)
pH value	3.0 - 4.5 (50 g/l, H₂O, 20 °C)
Bulk density	1000 - 1300 kg/m3
Solubility	450 g/l

Toxicological Information
LD 50 oral	LD50 Rat 2300 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H318: Causes serious eye damage. H335: May cause respiratory irritation. EUH031: Contact with acids liberates toxic gas.
Precautionary Statement(s)	P261: Avoid breathing dust. P271: Use only outdoors or in a well-ventilated area. P280: Wear eye protection/ face protection. P304 + P340 + P312: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Signal Word	Danger
RTECS	TT4920000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly 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
Categories of danger	irritant

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

Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	No Dangerous Good
Declaration (transport by sea) IMDG-Code	No Dangerous Good

Specifications
Assay (iodometric)	≥ 96 %
In water insoluble matter	≤ 0.005 %
Chloride (Cl)	≤ 0.005 %
As (Arsenic)	≤ 0.0001 %
Cu (Copper)	≤ 0.001 %
Fe (Iron)	≤ 0.0005 %
Pb (Lead)	≤ 0.001 %
Zn (Zinc)	≤ 0.001 %

Global Trade Item Number
Catalogue Number	GTIN
1050570500	04022536060095
1050571000	04022536060101
1050572500	04022536060125

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