Potassium Chromate pure 500 g
PRODUCT CODE: 141497
Potassium Chromate pure
CrK2O4
K2CrO4
M.= 194,21 CAS [7789-00-6] EINECS 232-140-5
TARIC 2841 50 00 00
PHYSICAL DATA: powder, crystals, Lemon-yellow, Soluble in water 630 g/l at 20 °C D 2,73 • M.P.: 975 °C • pH8,6 - 9,8 •
BIBLIOGRAPHY: Merck Index 12, 7.784 13, 7.705 Sax PLB250 • Safety 2 , 2897 D • Römp 8 , 2014 • Kühn-Birett K 5 • ACS X518IX494 •
HAZARDOUS: C.E: 024-006-00-8 • RTECS: GB 2940000 • LD50 oral mus 180 mg/kg • VLA-ED (Cr) 0,05 mg/m3
H: H350i • H340 • H319 • H335 • H315 • H317 • H410 •
P: P260 • P281 • P302+P352 • P304+P340 • P305+P351+P338 • P308+P313 • •
TRANSPORT REGULATIONS: UN: 3288 • ADR: 6.1/II • IMDG: 6.1/II • IATA: 6.1/II • PAX: 669 • CAO: 676 • (D/E) •
SPECIFICATIONS:
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Assay (Iodom.)
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99,0-102,0%
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pH of 5% solution
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8,6-9,8
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Insoluble matter in H2O
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0,025 %
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Chloride (Cl)
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0,005%
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Sulphate (SO4)
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0,1%
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Al
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0,005 %
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Ca
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0,01 %
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Cu
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0,005 %
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Fe
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0,005 %
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Pb
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0,01 %
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