Amulet of chemistry

The RuneScape Wiki also has an article on: rsw:Botanist's amulet

Amulet of chemistry
Released							2 February 2017 (Update)
Members							Yes
Quest item							No
Properties
Tradeable							Yes
Equipable							Yes
Stackable							No
Noteable							Yes
Destroy							Drop
Examine							Useful when making potions - has the chance of giving an extra dose.
Values
Value							1,050 coins
High alch							630 coins
Low alch							420 coins
Weight							0 kg
Grand Exchange
Exchange							1,007 coins (info)
Buy limit							200
Daily volume							49,273
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Advanced data
Item ID							21163

Amulet of chemistry? (edit)? (edit)File:Amulet of chemistry.png? (edit)2 February 2017 (Update)? (edit)YesUseful when making potions - has the chance of giving an extra dose.NoYesYesYesYesNoNoYesinfobox-cell-shownDrop10501,050 coinstrueAmulet of chemistry10071,007 coins (info)

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20049,273infobox-cell-showntrue0.6630 coins420 coins6300 kg02116321163? (edit)? (edit)? (edit)? (edit)

An amulet of chemistry is a jade amulet enchanted via the Lvl-2 Enchant spell.

When equipped, there is a 5% chance to give you an extra dose when brewing potions. The amulet will provide five charges before breaking. As of an update on 27 July 2017, players can right-click Options on the amulet to toggle whether they would like to stop making potions when the amulet breaks.

Similar to a ring of recoil, amulet of chemistry charges are stored per player, not per amulet. Thus if the player sells or casts High Level Alchemy on an amulet with 1 charge remaining, the next amulet the player equips will still have only 1 charge. The player can right-click to "break" an amulet of chemistry, destroying it and restoring the next amulet of chemistry the player equips to 5 charges.

Attack bonuses
+0	+0	+0	+0	+0
Defence bonuses
+0	+0	+0	+0	+0
Other bonuses				Slot
+0	+0	+0%	+0	List

Creation

Requirements

Skill		Level	XP
Magic		27	37
Members		Ticks	1 (0.6s)

Materials

Item		Quantity	Cost
	Jade amulet	1	794
	Cosmic rune	1	194
	Air rune	3	15
Total Cost			1,003
	Amulet of chemistry	1	1,007
Profit			4

Mechanics

The amulet of chemistry provides no benefit when making potions that always output 4 doses, including Antidote+, Antidote++, Anti-venom+, Super Combat, and Super Antifire.

When used with potions that create a variable number of doses, the amulet will only trigger if the input potion is less than 4 doses. These potions include Stamina potion, Extended antifire, Extended super antifire, Anti-venom, and all of the Divine potions. When used with 3 dose potions, the amulet will extend 60 doses into 61 doses, providing an average 1.66% increase in yield and take 33% longer to make. For 2 dose potions, the amulet will extend 40 doses into 41 doses, providing an average 2.5% increase in yield and take 100% longer to make. For single dose potions, the amulet will extend 20 doses into 21 doses, providing an average 5% increase in yield and take 300% longer to make. This takes much more time, but can be useful extending supplies when acquiring ingredients takes a significant amount of time (such as on Ironmen accounts, or maximizing profit from crystal dust).

Profit

When using the amulet for solely profit, it should only be used when a single dose of the potion you make has a value of more than 1/5th of the amulet's worth (201.4).

Potion		Single dose		One dose of (4)
		GE Price	Profit	GE Price	Profit
	Attack potion	2	-199.4	2	-199.4
	Antipoison	62	-139.4	53.75	-147.65
	Relicym's balm	249	47.6	267.5	66.1
	Strength potion	85	-116.4	76	-125.4
	Serum 207	1	-200.4	0.75	-200.65
	Compost potion	139	-62.4	46.75	-154.65
	Restore potion	32	-169.4	41.25	-160.15
	Guthix balance	236	34.6	90	-111.4
	Energy potion	100	-101.4	78.75	-122.65
	Defence potion	122	-79.4	67	-134.4
	Agility potion	144	-57.4	112.5	-88.9
	Combat potion	159	-42.4	33.25	-168.15
	Prayer potion	3,497	3,295.6	3,551.5	3,350.1
	Super attack	54	-147.4	50	-151.4
	Superantipoison	62	-139.4	66	-135.4
	Fishing potion	58	-143.4	34.5	-166.9
	Super energy	625	423.6	552.25	350.85
	Hunter potion	1,068	866.6	1,579	1,377.6
	Super strength	415	213.6	399.75	198.35
	Super restore	3,529	3,327.6	3,567.5	3,366.1
	Super defence	151	-50.4	184.25	-17.15
	Antifire potion	74	-127.4	97.75	-103.65
	Divine super attack	1,329	1,127.6	253	51.6
	Divine super strength	1,254	1,052.6	607	405.6
	Divine super defence	1,169	967.6	290.5	89.1
	Ranging potion	158	-43.4	141.5	-59.9
	Divine ranging potion	596	394.6	560.75	359.35
	Magic potion	41	-160.4	27.25	-174.15
	Divine magic potion	871	669.6	496.75	295.35
	Stamina potion	1,540	1,338.6	1,533.25	1,331.85
	Zamorak brew	1,197	995.6	626.5	425.1
	Bastion potion	1,367	1,165.6	1,322.75	1,121.35
	Battlemage potion	936	734.6	953.75	752.35
	Saradomin brew	1,489	1,287.6	1,537.5	1,336.1
	Extended antifire	99	-102.4	75.5	-125.9
	Anti-venom	990	788.6	1,067.25	865.85
	Super antifire potion	3,080	2,878.6	3,127.25	2,925.85
	Divine super combat	4,256	4,054.6	4,110	3,908.6
	Extended super antifire	3,282	3,080.6	3,242.75	3,041.35

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