FR2260795A1 - Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles - Google Patents

Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles

Info

Publication number
FR2260795A1
FR2260795A1 FR7404312A FR7404312A FR2260795A1 FR 2260795 A1 FR2260795 A1 FR 2260795A1 FR 7404312 A FR7404312 A FR 7404312A FR 7404312 A FR7404312 A FR 7404312A FR 2260795 A1 FR2260795 A1 FR 2260795A1
Authority
FR
France
Prior art keywords
crucibles
thermal
effected
quantitative analysis
heated container
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.)
Granted
Application number
FR7404312A
Other languages
French (fr)
Other versions
FR2260795B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7404312A priority Critical patent/FR2260795A1/en
Publication of FR2260795A1 publication Critical patent/FR2260795A1/en
Application granted granted Critical
Publication of FR2260795B1 publication Critical patent/FR2260795B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
    • G01N25/4846—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample
    • G01N25/4866—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample by using a differential method

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

Positive or negative thermal differentials are determined for thermal analysis of their effects on the change of phase of a chemical sample. Problems of imprecision in quantitative thermal analysis are overcome. A sample is placed in a crucible (41) and a control or reference sample is placed in a second crucible (42) in a casing (1) heated by an element (3) connected to a power supply (50). The two crucibles have associated thermocouples (43, 43) connected to measure a difference potential (DELTA-V) giving differential temperature (DELTA-T). An inner container (2) below the crucibles contains a temperature probe (40) connected to the power supply to permit precise control of a constant thermal flow. Both containers are filled with gas such as argon at slightly greater than atmospheric pressure via an inlet (120) towards an exhaust (110).
FR7404312A 1974-02-08 1974-02-08 Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles Granted FR2260795A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7404312A FR2260795A1 (en) 1974-02-08 1974-02-08 Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7404312A FR2260795A1 (en) 1974-02-08 1974-02-08 Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles

Publications (2)

Publication Number Publication Date
FR2260795A1 true FR2260795A1 (en) 1975-09-05
FR2260795B1 FR2260795B1 (en) 1976-06-25

Family

ID=9134687

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7404312A Granted FR2260795A1 (en) 1974-02-08 1974-02-08 Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles

Country Status (1)

Country Link
FR (1) FR2260795A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543683A1 (en) * 1983-03-29 1984-10-05 Inst Geol Im Akademik Differential thermal analysis with continuous specimen flow
RU2660217C1 (en) * 2017-04-24 2018-07-05 федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" Device of standardless differential thermal analysis with controlled differential recording in settings
RU2660211C1 (en) * 2017-04-24 2018-07-05 федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" Method of standardless differential thermal analysis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543683A1 (en) * 1983-03-29 1984-10-05 Inst Geol Im Akademik Differential thermal analysis with continuous specimen flow
RU2660217C1 (en) * 2017-04-24 2018-07-05 федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" Device of standardless differential thermal analysis with controlled differential recording in settings
RU2660211C1 (en) * 2017-04-24 2018-07-05 федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" Method of standardless differential thermal analysis

Also Published As

Publication number Publication date
FR2260795B1 (en) 1976-06-25

Similar Documents

Publication Publication Date Title
GB1519350A (en) Device for and method of measuring the extent of fouling within a tubular member
Mulcahy et al. A stirred-flow reactor for investigating the kinetics of gaseous reactions: application to the decomposition of di-t-butyl peroxide
GB1300894A (en) Temperature controlled flow cell
ES8107389A1 (en) Method for leakage measurement.
GB1406347A (en) Method and apparatus for continuously sensing the chemical composition and or certain physical properties of a gas stream
GB1259453A (en)
FR2260795A1 (en) Quantitative analysis of thermal differential on chemical samples - is effected in heated container with controlled thermal flow and uses two crucibles
Challoner et al. An electrically calibrated bomb calorimeter
Satava et al. Mechanism and kinetics of calcium sulfate hemihydrate dehydration by nonisothermal and isothermal thermogravimetry
Chang Oxidation of molybdenum disilicide
Rastogi et al. Cross-phenomenological coefficients. Part 6.—Dufour effect in gases
Ong et al. Kinetic study of the oxidation of sphalerite
Onishi Effect of accommodation coefficient on thermal creep flow of rarefied gas
GB2019578A (en) Measuring gas flow
MacLaren et al. The vapor pressure of iron (II) bromide
GB1531107A (en) Apparatus and method for measuring the self-heating rate of a chemical reaction
SU489028A1 (en) Device for measuring the thermopower of solids
GB1504556A (en) Calorimetric probe
SU656110A1 (en) Device for calibrating tape head meters
JPS57151846A (en) Thermoconductivity measuring apparatus by utilization of heat transmission meter
Mackenzie et al. Some notes on Arens' theory of differential thermal analysis
Stefanov et al. Measuring the coefficient of thermal conductivity of gases and vapors up to 2500 K: Differential method. Inert gases
Raghunandan et al. Combustion of polystyrene spheres in air
GRUZDEV et al. The phase method of measuring the thermal conductivity of gases(Phase method for measuring thermal conductivity of gases at high temperature)
JPS5747738A (en) Feeding apparatus for starting material for glass

Legal Events

Date Code Title Description
ST Notification of lapse