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Analytical method of modified resin acid by gas chromatography
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LY/T 2706-2016
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Basic data | Standard ID | LY/T 2706-2016 (LY/T2706-2016) | | Description (Translated English) | Analytical method of modified resin acid by gas chromatography | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B60 | | Classification of International Standard | 65.020 | | Word Count Estimation | 18,138 | | Date of Issue | 2016-07-27 | | Date of Implementation | 2016-12-01 | | Regulation (derived from) | State Forestry Administration Announcement No.17 of 2016; Industry Standard Announcement No.16 of 2016 (No.204) | | Issuing agency(ies) | State Forestry Administration | LY/T 2706-2016: Analytical method of modified resin acid by gas chromatography---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Method for Analysis of Modified Rosin Resin by Gas Chromatography)
ICS 65.020
B60
People's Republic of China Forestry Industry Standard
Modified rosin resin acid gas chromatography analysis method
Released on.2016-07-27
Implementation of.2016-12-01
State Forestry Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the State Forestry Administration.
This standard is under the jurisdiction of the National Forestry Products Standardization Technical Committee (SAC/TC558).
This standard was drafted. Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry.
The main drafters of this standard. Wang Zhenhong, Ye Bozhen, Wang Hongxiao.
Modified rosin resin acid gas chromatography analysis method
1 Scope
This standard specifies the gas chromatographic method for the determination of modified rosin resin acid.
This standard applies to hydrogenated rosin, disproportionated rosin, colorless rosin, male rosin, fumar rosin, acrylic acid plus rosin 6 modified rosin
Resin acid analysis of the product.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all modified versions) applies to this document.
GB/T 8146 rosin test method
GB/T 14020-2006 hydrogenated rosin
GB/T 14021-2009 Malay Rosin
LY/T 1357-2008 disproportionated rosin
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Hydrogenated rosinhydrogenatedrosin
Using a rosin as a raw material, a palladium/carbon catalyst is used at a certain temperature and pressure to make the double bond portion of the rosin resin acid saturated with hydrogen.
Hydrogenated rosin. The main chemical component is dihydroabietic acid, the molecular formula C20H32O2.
[GB/T 14020-2006, definition 3.1]
3.2
Disproportionated rosin disproportionatedrosin
An amorphous transparent solid obtained by the gum rosin catalyzed by a palladium/carbon catalyst is a mixture of various resin acids. Main chemistry
The component is dehydroabietic acid, and its molecular formula is C19H27COOH.
[LY/T 1357-2008, Definition 3.1]
3.3
Colorless rosin colourlessrosin
The hydrogenated rosin is subjected to vacuum distillation, and the obtained purified hydrogenated rosin is catalyzed by a palladium/carbon catalyst, and then purified by high vacuum distillation.
A colorless transparent mixture of amorphous solids (Ghana color number ≤ 1). The main chemical composition is dehydroabietic acid (C19H27COOH), indoline
Acid and dihydropyrosic acid (C19H31COOH).
3.4
Malay rosin maleatedrosin
A product obtained by reacting a part of a resin acid in a gum rosin with maleic anhydride (maleic anhydride) by Diels-Alder.
Malay rosin is an amorphous, transparent solid resin. The molecular formula, relative molecular mass and structural formula of the adduct are as follows.
Molecular formula. C24H32O5;
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