GB1251678A - - Google Patents

Info

Publication number
GB1251678A
GB1251678A GB1251678DA GB1251678A GB 1251678 A GB1251678 A GB 1251678A GB 1251678D A GB1251678D A GB 1251678DA GB 1251678 A GB1251678 A GB 1251678A
Authority
GB
United Kingdom
Prior art keywords
assembly
gas
rate
measured
changes
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.)
Expired
Application number
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 filed Critical
Publication of GB1251678A publication Critical patent/GB1251678A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/12—Condition responsive control

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

1,251,678. Determination of reaction rate. DOW CHEMICAL CO. 3 Dec., 1968 [4 Dec., 1967], No. 57290/68. Heading B1X. The rate of a chemical reaction in which gas is evolved or consumed is determined by passing gas from source 50 at a predetermined rate through a reaction assembly which includes means 10 containing sample 20, interrupting the flow of gas into the assembly by operation of valve 60 so isolating the assembly, circulating the gas within the assembly by means of pump 75, measuring the pressure change by means 90 throughout at least one present interval of time, and operating valve 60 to restore the flow of gas through the assembly. The temperature of the sample may be controlled by heating bath 35. Calibration means 120 changes the internal volume of the system by known amounts giving corresponding changes in pressure. The pressure changes may be measured at different temperatures, the temperatures being measured by thermocouple 30 in well 28 of means 10; at varying magnetic flux, measured by means 175; and at varying amounts of u-v radiation emitted by source 200. All experimental conditions may be controlled by timing means 70. Measurements may be fed to intelligence processing means 140, which may record a sequence of spaced traces varying with time, each trace corresponding to measurement of one of the other parameters. There is reference to the rate of decomposition of 2-oxazolidinone both alone and in the presence of its 3-sodium derivative.
GB1251678D 1967-12-04 1968-12-03 Expired GB1251678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68770767A 1967-12-04 1967-12-04

Publications (1)

Publication Number Publication Date
GB1251678A true GB1251678A (en) 1971-10-27

Family

ID=24761494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251678D Expired GB1251678A (en) 1967-12-04 1968-12-03

Country Status (8)

Country Link
US (1) US3578404A (en)
BE (1) BE724830A (en)
CH (1) CH512738A (en)
DE (1) DE1811500A1 (en)
FR (1) FR1603481A (en)
GB (1) GB1251678A (en)
NL (1) NL6817360A (en)
SE (1) SE357063B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934981A (en) * 1972-11-02 1976-01-27 The Dow Chemical Company Apparatus for detection of chloromethyl methyl ether or bis-chloromethyl ether
US3915636A (en) * 1974-02-11 1975-10-28 Univ Oklahoma State Aggregate surface area measurement method
JPS53138797A (en) * 1977-05-10 1978-12-04 Olympus Optical Co Ltd Measurement method for enzyne reaction velocity
US4304120A (en) * 1980-03-21 1981-12-08 Myers Tommy E Automatic gas measurement and analysis for a test cell
JPS58219201A (en) * 1982-06-16 1983-12-20 Hitachi Ltd Measuring method for polymerization ratio
US4838706A (en) * 1986-03-24 1989-06-13 The Provost, Fellows And Scholars Of The College Of The Holy And Undivided Trinity Of Queen Elizabeth Near Dublin Thermal analysis
US5100624A (en) * 1990-06-04 1992-03-31 Fmc Corporation Apparatus for determining the stability of a peroxygen
JP3169393B2 (en) * 1991-05-31 2001-05-21 忠弘 大見 Method and apparatus for measuring change in decomposition rate of special material gas
US5521095A (en) * 1992-02-10 1996-05-28 Queen's University At Kingston Temperature scanning reactor method
JPH07503405A (en) * 1992-02-10 1995-04-13 クイーンズ　ユニバーシティ　アット　キングストン temperature scanning reactor
US5269832A (en) * 1992-06-03 1993-12-14 Winfield Industries Method and apparatus for continuously measuring the concentration of chemicals in solutions
US5980829A (en) * 1996-10-29 1999-11-09 Idemitsu Kosan Co., Ltd. Neutralization testing apparatus
US6864092B1 (en) * 1998-08-13 2005-03-08 Symyx Technologies, Inc. Parallel reactor with internal sensing and method of using same
US7024950B2 (en) * 2000-11-30 2006-04-11 Texas Instruments Incorporated Method for intelligent sampling of particulates in exhaust lines
US20040261496A1 (en) * 2003-04-18 2004-12-30 Vickery Thomas P. Method of evaluating safety of liquids for drum storage
US7104116B2 (en) * 2003-09-25 2006-09-12 Rockwell Automation Technologies, Inc. Fluid sensor fixture for dynamic fluid testing
US7943915B2 (en) * 2008-10-10 2011-05-17 Ge Infrastructure Sensing, Inc. Method of calibrating a wavelength-modulation spectroscopy apparatus
EP2415578A1 (en) * 2009-03-31 2012-02-08 Hoya Corporation Plastic lens manufacturing device
FI20145756A (en) * 2014-09-01 2016-03-02 Microatmos Oy To study samples
CN111781092B (en) * 2019-04-04 2023-09-05 应急管理部化学品登记中心 Sample mixing method for determining gas production rate of substance and water reaction

Also Published As

Publication number Publication date
BE724830A (en) 1969-06-03
FR1603481A (en) 1971-04-19
CH512738A (en) 1971-09-15
DE1811500A1 (en) 1969-08-14
SE357063B (en) 1973-06-12
NL6817360A (en) 1969-06-06
US3578404A (en) 1971-05-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees