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GB/T 8144-2008: Determination of exchange capacity of cation exchange resin
Status: Valid GB/T 8144: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 8144-2008 | English | 78 |
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Determination of exchange capacity of cation exchange resin
| Valid |
GB/T 8144-2008
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| GB/T 8144-1987 | English | 199 |
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Determination method for exchange capacity of cation exchange resins
| Obsolete |
GB/T 8144-1987
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PDF similar to GB/T 8144-2008
Basic data | Standard ID | GB/T 8144-2008 (GB/T8144-2008) | | Description (Translated English) | Determination of exchange capacity of cation exchange resin | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.01 | | Word Count Estimation | 8,887 | | Date of Issue | 2008-06-30 | | Date of Implementation | 2009-02-01 | | Older Standard (superseded by this standard) | GB/T 8144-1987 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the styrenic strongly acidic hydrogen and sodium cation exchange resin, acrylic weak acid cation exchange resin exchange capacity determination. This standard applies to styrenic strongly acidic hydrogen and sodium cation exchange resin, acrylic weak acid cation exchange resin exchange capacity was measured. | GB/T 8144-2008: Determination of exchange capacity of cation exchange resin---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.
Determination of exchange capacity of cation exchange resin
ICS 83.080.01
G31
National Standards of People's Republic of China
Replacing GB/T 8144-1987
Exchange capacity of the cation exchange resin Determination
Posted 2008-06-30
2009-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 8144-1987 "ion exchange resins Determination of exchange capacity."
This standard compared with GB/T 8144-1987 standard, the main changes are as follows.
--- Increasing the exchange capacity determination of sodium cation exchange resin.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee plastic universal methods and products Club (SAC/TC15/SC4) centralized.
This standard is mainly drafted by. Xi'an Thermal Power Research Institute Co., Ltd., Jiangsu Su Qing water treatment engineering company, Zhejiang Industrial glory for shares
Parts Limited, East Zibo Chemical Co., Ltd., the national quality inspection center of a synthetic resin.
The main drafters of this standard. Wang Guang Zhu, Qian Ping, Cai Xiaohua, Shen Jianhua, Cuihuan Fang, Di Jinghua, Wang Jiandong.
This standard replaces the standards previously issued as follows.
--- GB/T 8144-1987.
Exchange capacity of the cation exchange resin Determination
1 Scope
This standard specifies the styrene strong acid and sodium hydrogen type cation exchange resin, an acrylic weakly acidic cation exchange resin cross
Determination of exchange capacity.
This standard applies to styrene strong acid and sodium hydrogen type cation exchange resin, an acrylic weakly acidic cation exchange resin exchange
Determination of capacity.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Preparation of GB/T 601 chemical reagent standard solution
GB/T 603 chemical reagent test methods and products in the preparation Preparation
GB/T 5475 sampling ion exchange resin
Resin pretreatment method GB/T 5476 ion exchange
Resin Determination for water GB/T 5757 ion exchange
Determination of exchange capacity of the resin GB/T 5760 OH anion exchange
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method Summary
3.1 Determination SUMMARY hydrogen type cation exchange resin exchange capacity
When hydrogen type cation exchange resin with an excess of (quantitative) monobasic strong base (such as sodium hydroxide) solution reaction, according to the titration of unreacted
The calculated amount of base cation exchange resin Total exchange capacity, which is the reaction formula.
→ RH + NaOH RNa + H2O
Where.
The RH --- represents a cation exchange resin (hydrogen form), which functional group may be a sulfonic acid group and/or carboxyl and phenolic groups;
RNa --- represents a cation exchange resin (sodium form).
When hydrogen type cation exchange resin is soaked in a solution of calcium chloride, only the strong acid groups (sulfonic acid group) can react, the replacement of titration
To hydrogen ions (H +), strong acid cation exchange resin computing group exchange capacity. Their reaction is.
2RH + CaCl → 2 R2Ca + 2HCl
In total exchange capacity of the cation exchange resin with a strong acid group exchange capacity of the difference between the calculated exchange capacity of weak acid groups.
Method 3.2 Determination of sodium cation exchange resin exchange capacity Summary
Sodium cation exchange resin under the dynamic by excess 1mol/LHCl regeneration solution, and then water to wash away the excess amount of HCl solution
Liquid resin into the hydrogen form. Under the dynamic by excess 1mol/LNaCl solution, exchange group is substituted with hydrogen ions to sodium ions dissolved
Solution, the reaction is as follows.
→ RH + NaCl RNa + HCl
All effluent was collected, the hydrogen amount was measured for calculating ion exchange capacity of the whole resin.
4 Instrument
4.1 Glass-exchange column. see GB/T 5760.
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