Product Information
CAS number	7789-00-6
EC index number	024-006-00-8
EC number	232-140-5
Grade	ACS,Reag. Ph Eur
Hill Formula	CrK₂O₄
Chemical formula	K₂CrO₄
Molar Mass	194.19 g/mol
HS Code	2841 50 00

Applications
Application	Potassium chromate for analysis EMSURE® ACS,Reag. Ph Eur. CAS No. 7789-00-6, EC Number 232-140-5.

Physicochemical Information
Density	2.73 g/cm3 (18 °C)
Melting Point	985 °C
pH value	9.0 - 9.8 (50 g/l, H₂O, 20 °C)
Bulk density	1400 kg/m3
Solubility	637 g/l

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H340: May cause genetic defects. H350i: May cause cancer by inhalation. H315: Causes skin irritation. H317: May cause an allergic skin reaction. H319: Causes serious eye irritation. H335: May cause respiratory irritation. H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P201: Obtain special instructions before use. P273: Avoid release to the environment. P280: Wear protective gloves. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. 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 + P313: IF exposed or concerned: Get medical advice/ attention.
Signal Word	Danger
Storage class	6.1B Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK	WGK 3 highly water endangering
Disposal	22 Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.

Safety Information
Hazard Symbols	Dangerous for the environment Toxic
Categories of danger	carcinogenic, mutagenic, irritant, sensitizing, dangerous for the environment
R Phrase	R 49-46-36/37/38-43-50/53 May cause cancer by inhalation.May cause heritable genetic damage.Irritating to eyes, respiratory system and skin.May cause sensitisation by skin contact.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase	S 53-45-60-61 Avoid exposure - obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).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 below +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 3288 , 6.1, II
Declaration (transport by air) IATA-DGR	UN 3288 , 6.1, II
Declaration (transport by sea) IMDG-Code	UN 3288 , 6.1, II

Specifications
Assay (iodometric)	≥ 99.5 %
In water insoluble matter	≤ 0.005 %
pH-value (5 %; water)	9.0 - 9.8
Chloride (Cl)	≤ 0.001 %
Sulphate (SO₄)	≤ 0.01 %
Ca (Calcium)	≤ 0.005 %
Na (Sodium)	≤ 0.02 %
Pb (Lead)	≤ 0.005 %

Taksit Seçenekleri

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MERCK 104952 Potassium chromate for analysis EMSURE® ACS,Reag. Ph Eur. CAS No. 7789-00-6, EC Number 232-140-5

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