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ASTM E236-66(2011)

(Specification)

Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups

Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups

ABSTRACT
This specification covers the design and dimensional requirements for the apparatus used in the microdetermination of methoxyl and ethoxyl groups in organic compounds. This apparatus is composed of a reaction flask, condenser with scrubber, delivery tube, and two types of receivers—one for volumetric analysis, and the other for gravimetric analysis.
SCOPE
1.1 This specification covers apparatus for the microdetermination of methoxyl and ethoxyl groups in organic compounds.  Note 1-This specification was originally developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.

General Information

Status
Historical
Publication Date
30-Nov-2011
ICS
71.040.20 - Laboratory ware and related apparatus
Technical Committee
E41 - Laboratory Apparatus
Drafting Committee
E41.01 - Laboratory Ware and Supplies
Current Stage
Ref Project

Relations

Replaces
ASTM E236-66(2006) - Standard Specification for Apparatus For Microdetermination Of Alkoxyl Groups
Effective Date
01-Dec-2011

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ASTM E236-66(2011) - Standard Specification for Apparatus for Microdetermination of Alkoxyl GroupsASTM E236-66(2011) - Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups
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ASTM E236-66(2011) - Standard Specification for Apparatus for Microdetermination of Alkoxyl Groups
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E236 −66 (Reapproved 2011)
Standard Specification for
Apparatus for Microdetermination of Alkoxyl Groups
This standard is issued under the fixed designation E236; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
NOTE 2—Spent scrubbing solution may be removed from the scrubber
1. Scope
by inserting through the side arm of the scrubber a drawn-out medicine
1.1 This specification covers apparatus for the microdeter-
dropper or small rubber tube connected to a vacuum source.
mination of methoxyl and ethoxyl groups in organic com- NOTE3—Thescrubberisconstrictedtopreventscrubbingsolutionfrom
being sucked back into the reaction flask or carried over into the receiver.
pounds.
NOTE 1—This specification was originally developed by the Committee
4. Delivery Tube
on MicrochemicalApparatus, Division ofAnalytical Chemistry,American
Chemical Society. 4.1 The delivery tube shall be of borosilicate glass and
conform to the requirements of Fig. 3.
2. Reaction Flask
2.1 The reaction flask shall be of borosilicate glass and shall
5. Receivers
conform to the requirements of Fig. 1.
5.1 Two types of receivers are specified, as follows:
5.1.1 Receiver for Volumetric Analysis shall be of borosili-
3. Condenser with Scrubber
cate glass and conform to the requirements of Fig. 4.
3.1 The West-type condenser with scrubber shall be of
5.1.2 Receiver for Gravimetric Analysis shall be of borosili-
borosilicate glass and conform to the requirements of Fig. 2.
cate glass and conform to the requirements of Fig. 5.
This specification is under the jurisdiction of ASTM Committee E41 on
6. Keywords
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
Apparatus.
6.1 alkoxyl; apparatus; groups; microdetermination
Current edition approved Dec. 1, 2011. Published December 2011. Originally
approved in 1964. Last previous edition approved in 2006 as E236 – 66 (2006).
DOI: 10.1520/E0236-66R11.
2 3
Committee on Microchemical Analysis, Division of Analytical Chemistry, UsedtoestablishtheofficialA.O.A.C.microchemicalmethodforalkoxylgroup
American Chemical Society. “Report on Rec
...

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