Merck 108883 1000 Zinc Sulfate Heptahydrate Gr For Analysis Acs,iso 1 KG.

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

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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 70
Quality Level	MQ300

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

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Toxicological Information
LD 50 oral	LD50 Rat 1260 mg/kg

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Safety Information according to GHS
Hazard Pictogram(s)	\n\n\n
Hazard Statement(s)	H302: Harmful if swallowed.\nH318: Causes serious eye damage.\nH410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P264: Wash skin thoroughly after handling.\nP270: Do not eat, drink or smoke when using this product.\nP273: Avoid release to the environment.\nP280: Wear eye protection/ face protection.\nP301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word	Danger
RTECS	ZH5300000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
Disposal	14\nInorganic 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).

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Safety Information
Categories of danger	harmful, irritant, dangerous for the environment

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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 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))

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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