Erbium Oxide suppliers and prices

Formula: Er₂O₃
CAS number: 12645-29-3
Molar mass: 382.52 g/mol

Found at 1 store we track

$2,965 per kilogram

100 grams for $296.50

At Great Western Inorganics, United States · Grade not stated

View at Great Western Inorganics

Lowest total price

$102.00 for 25 grams

Works out at $4.08 per gram

At Great Western Inorganics, United States

View at Great Western Inorganics

Only one store we read sells Erbium Oxide so far. Sell it, or know a store that does? Tell us.

Every price we found

2 prices from 1 store, checked October 30, 2026. Each one is worked out per kilogram, so a small bottle and a big bag compare fairly.

SortShow prices per Currency

Pack	Store	Grade and form	Price per unit	Link
100 grams$296.50	Great Western InorganicsUnited States	Lowest priceGrade not stated	$2,965 per kilogram
25 grams$102.00	Great Western InorganicsUnited States	Grade not stated	$4.08 per gram

Cite these pricesA ready sentence and reference for your report

For your report

As of October 30, 2026, the lowest store price for erbium oxide was $2,965 per kilogram: 100 grams for $296.50 at Great Western Inorganics.

Reference

APA, 7th edition

ChemicalSuppliers.com. (2026, October 30). Erbium oxide suppliers and prices. Retrieved October 31, 2026, from https://www.chemicalsuppliers.com/erbium-oxide/

ACS

Erbium Oxide Suppliers and Prices. ChemicalSuppliers.com, October 30, 2026. https://www.chemicalsuppliers.com/erbium-oxide/ (accessed 2026-10-31).

BibTeX

@misc{chemicalsuppliers-erbium-oxide,
  author  = {{ChemicalSuppliers.com}},
  title   = {{Erbium oxide} suppliers and prices},
  year    = {2026},
  date    = {2026-10-30},
  url     = {https://www.chemicalsuppliers.com/erbium-oxide/},
  urldate = {2026-10-31},
  note    = {Prices checked October 30, 2026}
}

Prices change every day, so each line carries the date they were checked.

Making a solution?

Pick the strength and how much you need. We work out the grams of Erbium Oxide and what they cost at the cheapest store we track.

Strength

Amount of solution

You need: 383 milligrams; of Erbium Oxide, molar mass 382.52 g/mol
That much costs: $1.13; $11.34 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $102.00; 1 pack of 25 grams at Great Western Inorganics; View at Great Western Inorganics

Weigh it out, dissolve it in less water than you need, then top up to the full amount.

Sold by

Great Western Inorganics

Chemical identity

Formula, molar mass, CAS number, InChIKey and the official PubChem record

Formula: Er₂O₃
Molar mass: 382.52 g/mol
CAS number: 12645-29-3
InChIKey: ZXGIFJXRQHZCGJ-UHFFFAOYSA-N
Official record: PubChem 159426

How we compare: each store's own price, turned into US dollars at European Central Bank rates of 2026-10-30, then divided by the pack size. Shipping and tax are not included.