About
Potassium dichromate is a chemical compound. It contains potassium and dichromate ions. It has a chemical formula of K2Cr2O7 (K2Cr). The chromium is in its +6 oxidation state. GRADES: EXTRA PURE / LR / ER ACS / AR / GR / AR ACS Molar Mass: 294.185 g/mol
Potassium Dichromate is Bright Red Crystalline Solid.
It is a strong oxidizing agent in acidic conditions. It is Non-Absorbent, Water Soluble, and Toxic.
Laboratory Reagent also, Cleaning, Construction, Ethanol-Determination Leather-Taning, Silver Test, SO2-Test, Wood-Treatment, etc
Local – 50kg HDPE Bag with Airtight inside polylinner.
Export- 50 kg fibre drums.
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Physical Properties
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Odour
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Odourless
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Density
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2.676 g/cm3, solid
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Melting point
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398 °C (748 °F; 671 K)
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Boiling point
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500 °C (932 °F; 773 K) decomposes
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Solubility in water
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4.9 g/100 mL (0 °C) & 102 g/100 mL (100 °C)
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Solubility
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insoluble in alcohol
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Refractive index (nD)
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1.738
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Specification - Potassium Dichromate
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Test
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Tech
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Extra Pure / LR / ER ACS
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AR / GR / AR ACS
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Description
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Bright orange red crystals
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Bright orange red crystals
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Clarity
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Should be clear
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Should be clear
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Should be clear
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Identity
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K: Passes Test CrO4 passes test
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K: Passes Test CrO4 passes test
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K: Passes Test CrO4 passes test
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Assay % w/w
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98%
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NLT 99%
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99.9 min
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PH 5% of solution
(carbon dioxide-free water)
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3.7 – 3.9
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3.7 – 3.9
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3.7 – 3.9
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Insoluble matter % w/w
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0.30% Max.
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0.005
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0.003
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Chloride ( Cl )% w/w
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0.50%
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NMT 0.01%
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0.0005
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Sulphate ( SO4)
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0.30% MAX.
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NMT 0.02%
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NMT 0.01
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Calcium (Ca)
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0.10% Max.
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0.003
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0.002
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Moisture
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0.5% Max.
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NMT 0.5%
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NMT 0.5%
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Sodium (Na)
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0.10 MAX
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NMT 0.05%
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NMT 0.05%
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