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HOLMIUM Structure

HOLMIUM

Chemical Properties

Melting point 1474 °C
Boiling point 2695 °C
Density  8.8 g/mL at 25 °C (lit.)
solubility  soluble in dilute acid solutions
form  ingot
Specific Gravity 8.795
color  Silver-gray
Water Solubility  reacts slowly with H2O, soluble dilute acids [HAW93]
Sensitive  Air & Moisture Sensitive
Merck  13,4747
Exposure limits ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
CAS DataBase Reference 7440-60-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII W1XX32SQN1
EPA Substance Registry System Holmium (7440-60-0)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H228
Precautionary statements P210-P240-P241-P280-P370+P378
Hazard Codes  C,F,O
Risk Statements  34-11-8
Safety Statements  22-24/25-36-26-23-45-36/37/39-27
RIDADR  UN 3089 4.1/PG 2
WGK Germany  3
1-10
TSCA  Yes
HazardClass  4.1
PackingGroup  II
HS Code  28053090
NFPA 704:
0
3 0

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HOLMIUM Chemical Properties,Usage,Production

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