Aluminium's name comes from the Latin "alumen", meaning "bitter salt". Someone must have tasted Aluminium Chloride (AlCl3)

Btw C9 version of this hat is low, and i priced it

Sale 1

[No OP Trade] Sold for 12 keys of sweets

X = 12

Sweets https://gyazo.com/7d4bab125fd5aa77e8a44efbf0e68254 http://backpack.tf/profiles/76561198212776984?time=1448006400&compare=1448092800

Bonnet http://backpack.tf/item/3028952882

Sale 2

http://www.tf2outpost.com/trade/27435441 Sold with a bud for Blizz Glen

B/O for Broad was 16

Glen had no trade

Presuming Broad was offered

X + 3 = 14

X = 11

Glen http://backpack.tf/item/797136227

Broad http://backpack.tf/item/3028952882

Trade http://backpack.tf/profiles/76561198082592496?time=1447920000&compare=1448006400

Mini for Glen

https://gyazo.com/0053a7b19b429d7d680513239402584f 2 sellers for 14, one at 13 horridly bumped, using 14

Sale 3

http://www.tf2outpost.com/trade/26295637 Sold for Smoking OMA + a key

B/O for Bonnet was 16

B/O for OMA was 15

X = 14 + 1

X = 15

OMA http://backpack.tf/item/584393293

Broad http://backpack.tf/item/3028952882

Trade http://backpack.tf/profiles/76561198070193124?time=1447574400&compare=1447056000

Mini for OMA

http://backpack.tf/vote/id/5689b358ba8d885622a94aa5 13.5 keys, using 13.5

Sellers

http://www.tf2outpost.com/trade/27587958 16 keys

http://www.tf2outpost.com/trade/27490452 14 keys, 1m