CN107731073A - A kind of mass conservation law test instrument - Google Patents
A kind of mass conservation law test instrument Download PDFInfo
- Publication number
- CN107731073A CN107731073A CN201610685077.6A CN201610685077A CN107731073A CN 107731073 A CN107731073 A CN 107731073A CN 201610685077 A CN201610685077 A CN 201610685077A CN 107731073 A CN107731073 A CN 107731073A
- Authority
- CN
- China
- Prior art keywords
- balance
- test instrument
- conservation law
- white phosphorus
- mass conservation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/24—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for chemistry
Abstract
The present invention relates to small stores technical field, is a kind of mass conservation law test instrument.The present invention includes cone-shaped glass bottle, the glass tube with balloon, heat transfer thick copper lines and by the flat combustion spoon formed of blister copper plumb bob.Thick copper lines are heated with alcolhol burner, it was observed that white phosphorus starts to burn, during the course of the reaction without mobile response container, experimental period is both shortened, enhances the feasibility of experiment again.
Description
Technical field
The present invention relates to small stores technical field, specifically a kind of mass conservation law test instrument.
Background technology
First lecture experiment of mass conservation law is (i.e. before and after red phosphorus burning in existing junior middle school chemistry teaching material (people teaches version)
The experiment of quality determination), experiment is found during red phosphorus burns, it is necessary to is removed rubber stopper, to glass tube heating, is caused to bore
Air in shape bottle has flowed, and causes experimental result inaccurate.The glass tube of insert band balloon on bottle stopper, can avoid white phosphorus
Heat is released during burning, makes gas expansion that bottle stopper be washed open and cause the failure of an experiment；Carried out in closed instrument, it is therefore prevented that combustion
Burn pollution of the product to environment；Do not have to mobile response container during the course of the reaction, both shorten experimental period, enhance experiment again
Feasibility.
The content of the invention
The invention aims to provide a kind of mass conservation law test instrument, there is good conductivity of heat with thick copper lines
Energy；Red phosphorus ignition point is too high, and red phosphorus is changed into white phosphorus；The glass tube of insert band balloon on bottle stopper, avoids white phosphorus from being put when burning
Go out heat, make gas expansion that bottle stopper be washed open and cause the failure of an experiment, white phosphorus burning is front and rear extremely to be begun to end in closed instrument
Carry out, it is therefore prevented that pollution of the combustion product to environment.Mobile response container is not had to during the course of the reaction, when both having shortened experiment
Between, the feasibility of experiment is enhanced again.
The purpose of the present invention can be achieved through the following technical solutions：A kind of mass conservation law test instrument, is included in cone
Addition is by the flat combustion spoon formed of blister copper plumb bob in shape vial, is put into one piece of white phosphorus of mung bean size, insert band gas on bottle stopper
The glass tube of ball, at this moment adjusting balance makes the pointer of balance keep balance, heats thick copper lines with alcolhol burner, can be observed at once white
Phosphorus burns.
Brief description of the drawings
Accompanying drawing is side cutaway view of the invention.
Reference makes the following instructions：Cone-shaped glass bottle 1, combustion spoon 2, the white phosphorus 3 of experiment, heat transfer thick copper lines 4, bottle stopper
5 and the glass tube with balloon 6.
Embodiment
The glass tube of insert band balloon (6) on bottle stopper (5), one piece of white phosphorus of mung bean size is put into combustion spoon (2)
(3) balance, is adjusted, the pointer of balance is kept balance, thick copper lines (4) are heated with alcolhol burner, white phosphorus burning can be observed at once,
Dense white cigarette is produced in conical flask (1), and the pointer of balance is in poised state all the time.Thus prove, participate in reaction
Each material mass sum is equal to each material mass sum generated after reaction.
Claims (2)
1. a kind of mass conservation law test instrument, include in cone-shaped glass bottle (1), combustion spoon (2) and be put into the one of mung bean size
Block white phosphorus (3).Balance is adjusted, the pointer of balance is kept balance, thick copper lines (4) is heated with alcolhol burner, can be observed at once white
Phosphorus is burnt, and dense white cigarette is produced in conical flask (1), and the pointer of balance is in poised state all the time.Thus prove, participate in
Each material mass sum of reaction is equal to each material mass sum generated after reaction.
A kind of 2. mass conservation law test instrument according to claim 1, it is characterised in that cone-shaped glass bottle (1) bottle stopper
The grass tube (5) of upper insert band balloon (6), avoids white phosphorus from releasing heat when burning, makes gas expansion that bottle stopper be washed open and led
The failure of an experiment is caused, so as to ensure that the success rate of experiment and accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610685077.6A CN107731073A (en) | 2016-08-14 | 2016-08-14 | A kind of mass conservation law test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610685077.6A CN107731073A (en) | 2016-08-14 | 2016-08-14 | A kind of mass conservation law test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107731073A true CN107731073A (en) | 2018-02-23 |
Family
ID=61201389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610685077.6A Pending CN107731073A (en) | 2016-08-14 | 2016-08-14 | A kind of mass conservation law test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107731073A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115618171A (en) * | 2022-06-06 | 2023-01-17 | 北京理工大学 | Propellant combustion balance product solving method based on homotopy algorithm |
-
2016
- 2016-08-14 CN CN201610685077.6A patent/CN107731073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115618171A (en) * | 2022-06-06 | 2023-01-17 | 北京理工大学 | Propellant combustion balance product solving method based on homotopy algorithm |
| CN115618171B (en) * | 2022-06-06 | 2023-10-24 | 北京理工大学 | Method for solving propellant combustion balance product based on homotopy algorithm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |