협업
예술
뷰티 및 웰니스
공예
문화 및 역사
엔터테인먼트
환경
음식 및 음료
역공학
과학
스포츠
기술
웨어러블
Platinum Crucible: Shaped from Foil in a Hollow in a Board (Morfit, 1849)
A small platinum crucible for igniting precipitates at high heat. Campbell Morfit (1849): "The experimenter himself can in any emergency readily form a crucible out of platinum foil by shaping it with the thumb or a small hammer, in a hemispherical cavity made in a board for the purpose."
Platinum crucibles must be of pure metal and hammered, not turned; thin enough to weigh on a delicate balance. Foil thickness and the size of the hollow are not given.
Source: C. Morfit, Chemical and Pharmaceutic Manipulations (1849), pp. 196-197. Picture: Fig. 164.
초급
Unknown
안내
1
1
Read Morfit
Read Morfit
"The experimenter himself can in any emergency readily form a crucible out of platinum foil by shaping it with the thumb or a small hammer, in a hemispherical cavity made in a board for the purpose."
2
2
Make the hollow
Make the hollow
Cut a hemispherical cavity in a board, the size of the crucible wanted. Morfit's crucibles hold from a fluidrachm to three fluid ounces; a half-ounce one is the most needed in analysis. How the cavity is cut is not given (ours: a gouge in a hardwood board).
필요한 도구:
경목 판재
둥근끌(구우지)
알 수 없는 치수3
3
Shape the foil
Shape the foil
Lay a piece of pure platinum foil over the hollow and press it in with the thumb, or work it in with a small hammer, until it takes the hemispherical shape. The foil thickness, and how the foil is made, are not given (unknown).
이 단계의 재료:
백금1 foil필요한 도구:
경목 판재
볼핀 해머
미상의 성형 방법4
4
Care of the crucible
Care of the crucible
Blisters and flaws that appear after use come from impure metal and bad workmanship; remove them by the force of a small hammer. Loosen salts with boiling water and rub off stains with sand or pumice stone. Do not use sharp pointed instruments on it.
필요한 도구:
볼핀 해머이 블루프린트로 만드는 것
CC0 퍼블릭 도메인
이 블루프린트는 CC0로 공개되었습니다. 어떤 목적으로든 자유롭게 복사, 수정, 배포 및 사용할 수 있습니다.
제품 구매를 통해 메이커를 지원하세요. 판매자가 설정한 메이커 커미션 을 받거나, 이 블루프린트의 새로운 반복을 만들어 연결로 포함시킬 수 있습니다.