Merck 104952 0250 Potassium Chromate Gr For Analysis 250 GR.

Merck 104952 0250 Potassium Chromate Gr For Analysis 250 GR.

70.52 ( KDV Dahil )

for analysis EMSURE® ACS,Reag. Ph Eur CAS #: 7789-00-6 EC Number: 232-140-5

Stok kodu: 104952.0250 Kategoriler: ,


Catalogue Number 104952
Synonyms chromic acid potassium salt

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 194.2 g/mol
HS Code 2841 50 00
Quality Level MQ300

Physicochemical Information
Density 2.73 g/cm3
Melting Point 968.3 °C
pH value 8.5 – 10.0 (50 g/l, H₂O, 20 °C)
Bulk density 1400 kg/m3
Solubility 637 g/l

Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s) H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
H340: May cause genetic defects.
H350i: May cause cancer by inhalation.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s) P202: Do not handle until all safety precautions have been read and understood.
P273: Avoid release to the environment.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P302 + P352: IF ON SKIN: Wash with plenty of 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 6.1D Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK WGK 3 highly hazardous to water
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
Categories of danger carcinogenic, mutagenic, irritant, sensitizing, dangerous for the environment

Storage and Shipping Information
Storage Store at +2°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

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