Chemistry Merit Badge
Eight requirements that split in two. Requirement 1 is the safety data for three named chemicals, and it gates requirements 2, 3 and 4: the only three where you handle anything. Requirements 5 to 8 are ungated and can be started immediately.
The plan behind this
Requirement 1 is a gate, and it says so three times
Requirements 2, 3 and 4 each begin "after successfully completing requirement 1". Requirements 5, 6, 7 and 8 say nothing of the kind.
So the badge is really two badges stacked:
- Behind the gate: requirements 2, 3 and 4, first aid, cooking and camping chemistry. Every one of them is hands-on.
- In front of it: requirements 5, 6, 7 and 8, single-use items, the fields of chemistry, the government agencies, and a visit or a careers piece. None of these is gated by anything, and all four can be started on the day you get the blue card.
The three chemicals in requirement 1 are the three chemicals in the badge
This is not stated on the badge page, but it falls straight out of reading it. Requirement 1 asks for safety data sheets for sucrose, isopropyl alcohol and a waterproofing spray. Look at what comes next:
| Requirement 1 chemical | Where it turns up |
|---|---|
| Isopropyl alcohol (rubbing alcohol) | 2(a) cleaning cuts, 2(c) the yeast experiment |
| Sucrose (sugar) | 3(a), the Maillard browning reaction |
| Waterproofing spray | 4(a), comparing types of waterproofing |
That is why requirement 1 gates exactly requirements 2, 3 and 4. It is not a general safety lecture that happens to come first. It is the safety data for the specific substances this badge is about to put in your hands, and the badge will not let you touch them until you have read it.
Requirement 4 is two of four, and two of the four need an adult present
Requirement 4 asks for TWO of its four. Two of them, 4(c) the flame tests and 4(d) the nylon synthesis, must be done under your counselor's supervision or that of a knowledgeable adult approved in advance by your counselor. A torch and a polymer synthesis are not things to arrange on the day.
The other two, the waterproofing experiment and the fire classes, need no special supervision. If arranging a supervised session is hard where you are, 4(a) and 4(b) are the pair that does not need one.
Requirement 3 is the only one with no choice in it
Requirements 4 and 8 both offer alternatives. Requirement 3 says "do EACH of the following": the browning reaction and the red cabbage indicator, both of them.
What this page is
The Chemistry merit badge, laid out so the safety gate is visible and the four ungated requirements are not left sitting behind it for no reason. It is not a copy of the requirements: each step is a short label with a link to the official requirements, which are what actually governs and which change from year to year.
Sources for this page
- Chemistry Merit Badge Requirements, Merit Badge Hub, last modified 2025-12-15 · The requirements themselves, and the free official pamphlet linked from them.
- Guide to Advancement, 2025, Section 7.0.0.3 · The process every merit badge is earned through, which this page does not repeat.
- Guide to Advancement, 2025, Section 7.0.4.3 · Which version of a changed requirement applies to a Scout who has already started.
- Guide to Advancement, 2025, Section 4.0.0.1 · Why the requirements are not in the Guide to Advancement and are expected to change annually.
Last checked against its sources on .