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Potassium dichromate Structure

Potassium dichromate

Chemical Properties

Melting point 398 °C (lit.)
Boiling point 82 °C
Density  7.14 g/mL at 25 °C(lit.)
Flash point 50 °F
storage temp.  Store at RT.
solubility  H2O: 0.1 M at 20 °C, clear, orange
form  powder
color  Orange-red
Specific Gravity 2.676
PH 3.5-5.0 (25℃, 0.1M in H2O)
Water Solubility  125 g/L (20 ºC)
Merck  14,7627
Exposure limits ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
InChIKey KMUONIBRACKNSN-UHFFFAOYSA-N
CAS DataBase Reference 7778-50-9(CAS DataBase Reference)
EPA Substance Registry System Potassium dichromate (7778-50-9)

Safety Information

Hazard Codes  T,N,T+,O
Risk Statements  45-46-60-61-8-21-25-26-34-42/43-48/23-50/53-52/53-20-48/20-23-51/53-22-36/37/38-27-20/21-23/24
Safety Statements  53-45-60-61-36/37-23-26
RIDADR  UN 3086 6.1/PG 1
WGK Germany  3
RTECS  HX7680000
TSCA  Yes
HazardClass  5.1
PackingGroup  III
HS Code  28415000
Hazardous Substances Data 7778-50-9(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 90.5 mg/kg LD50 dermal Rat 1170 mg/kg

MSDS

Usage And Synthesis