Merck 108883 Zinc sulfate heptahydrate for analysis EMSURE® ACS, ISO, Reag. pH Eur CAS No.: 7446-20-0 1 kg

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LB.M.1088831000

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Merck 108883

Zinc sulfate heptahydrate for analysis EMSURE® ACS, ISO, Reag. Ph Eur 1 kg

Description
Catalogue Number	108883
Replaces	ZX0105; ZX0105-1; ZX0105-20
Synonyms	Zinc vitriol
Description	Zinc sulfate heptahydrate

Product Information
CAS number	7446-20-0
EC index number	030-006-00-9
EC number	231-793-3
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	O₄SZn * 7 H₂O
Chemical formula	ZnSO₄ * 7 H₂O
Molar Mass	287.54 g/mol
HS Code	2833 29 20
Quality Level	MQ300

Physicochemical Information
Density	1.97 g/cm3 (20 °C)
Melting Point	100 °C
pH value	4 - 6 (50 g/l, H₂O, 20 °C)
Bulk density	800 - 1000 kg/m3
Solubility	965 g/l

Toxicological Information
LD 50 oral	LD50 Rat 1260 mg/kg

Safety Information according to GHS
Hazard Statement(s)	H302: Harmful if swallowed. H318: Causes serious eye damage. H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P273: Avoid release to the environment. P280: Wear eye protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P313: Get medical advice/ attention.
Signal Word	Danger
RTECS	ZH5300000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
Disposal	14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

Safety Information
Categories of danger	harmful, irritant, dangerous for the environment
R Phrase	R 22-41-50/53 Harmful if swallowed.Risk of serious damage to eyes.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase	S 22-26-39-46-60-61 Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.If swallowed, seek medical advice immediately and show this container or label.This material and its container must be disposed of as hazardous waste.Avoid release to the environment. Refer to special instructions/ Safety data sheets.

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

Transport Information
Declaration (railroad and road) ADR, RID	UN 3077 , 9, III
Declaration (transport by air) IATA-DGR	UN 3077 , 9, III
Declaration (transport by sea) IMDG-Code	UN 3077 , 9, III, Marine Pollutant: P, Segregation Group: 7 (Heavy metals and their salts (including their organometallic compounds))

Specifications
Assay (complexometric)	99.5 - 103.0 %
Identity	passes test
Appearance of solution	passes test
Insoluble matter	≤ 0.01 %
pH-value (5 %; water, 25 °C)	4.4 - 5.6
Chloride (Cl)	≤ 0.0005 %
Total nitrogen (N)	≤ 0.0005 %
Nitrate (NO₃)	≤ 0.002 %
As (Arsenic)	≤ 0.00005 %
Ca (Calcium)	≤ 0.001 %
Cd (Cadmium)	≤ 0.0005 %
Cu (Copper)	≤ 0.0005 %
Fe (Iron)	≤ 0.0005 %
K (Potassium)	≤ 0.001 %
Mg (Magnesium)	≤ 0.001 %
Mn (Manganese)	≤ 0.0003 %
Na (Sodium)	≤ 0.001 %
NH₄ (Ammonium)	≤ 0.001 %
Pb (Lead)	≤ 0.001 %
Corresponds to ACS, ISO, Reag. Ph Eur

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