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A7331012

Scandium standard , 1000ug/mlin1.0mol/LHNO3 , 7440-20-2

Synonym(s):
;Scandium

CAS NO.:7440-20-2

Empirical Formula: Sc

Molecular Weight: 44.96

MDL number: MFCD00016323

EINECS: 231-129-2

Pack Size Price Stock Quantity
50ML RMB271.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 1540 °C (lit.)
Boiling point: 2836 °C (lit.)
Density  2.99 g/mL at 25 °C (lit.)
solubility  Slowly dissolve in dilute acids.
form  powder
color  Silver-gray
Specific Gravity 3
Resistivity 50.5 μΩ-cm, 0°C
Water Solubility  Reacts with water.
Sensitive  air sensitive
Merck  13,8468
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)
InChIKey SIXSYDAISGFNSX-UHFFFAOYSA-N

Description and Uses

Scandium was not produced in any quantities until the late 1930s. Its light weight,resistance to corrosion, and high melting point made it especially useful in the aerospaceindustries. In the early 1940s contractors for the U.S. Air Force appropriated almost all of thescandium metal for use in the construction of military aircraft. The pure metal form is produced by the electrolysis of a salt of scandium, ScCl3. The metal has found some other uses in high-intensity lamps that produce a natural spectrum, making it useful for stadium lighting.It is also used in nickel alkaline storage batteries. Several compounds are used as catalysts tospeed up chemical reactions. The radioactive scandium-46 (with a half-life of 83.8 days) emitsbeta radiation. This property makes it useful as a radioactive tracer in the petroleum industryto monitor fractionation products.

Safety

Symbol(GHS) 
GHS02
Signal word  Danger
Hazard statements  H228
Precautionary statements  P210-P240-P241-P280-P370+P378
Hazard Codes  F,T,Xi
Risk Statements  5-11-34-23/24/25-36/37/38-36/38
Safety Statements  26-28-36/37-7/9-36/37/39-16-43-45-27
RIDADR  UN 3089 4.1/PG 2
WGK Germany  1
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  2805304000

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