CN1603800A - Water quality test agent for total hardness - Google Patents
Water quality test agent for total hardness Download PDFInfo
- Publication number
- CN1603800A CN1603800A CN 200410088549 CN200410088549A CN1603800A CN 1603800 A CN1603800 A CN 1603800A CN 200410088549 CN200410088549 CN 200410088549 CN 200410088549 A CN200410088549 A CN 200410088549A CN 1603800 A CN1603800 A CN 1603800A
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- total hardness
- test agent
- water quality
- ethylene diamine
- disodium
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
This invention relates to a measurement agent of water quality total hardness, which comprises ethylene diamine tetraacetic acid disodium salt, chrome black, ethylenediamine tetra acetic acid, anhydrous sodium carbonate, natrium bicarbonicum and common salt by mixing and grinding. Comparing with current technique, its advantages are the following: it substitutes the disodium ethylene diamine tetraace tate titration method to save labor and resources; qualified products rate is more than ninety-eight percent; product cost is low and is without pollution.
Description
One, technical field
The present invention relates to a kind of water quality test agent for total hardness.
Two, background technology
Measure the content of various water bodys such as industrial boiler water-supply total hardness, the common method of inspection is disodium ethylene diamine tetraacetate (EDTA) titrimetry.This method of inspection must have the laboratory personnel of specialty and the chemical examination facility that matches.The technical requirement height of chemical examination, the chemical examination process is also very complicated, and the chemical examination cost is quite high.Especially boiler feed water Estimating Total Hardness number of times is frequent, so must there be the laboratory personnel to work with class.Because boiler water quality test requirements height, quite a few does not all carry out the water treatment check with stove enterprise for this reason, and operational management has brought certain degree of difficulty to safe and economical boiler for country.
Chinese patent application 01132383.3 discloses a kind of test paper for detecting total hardness of water and preparation method, it comprises substrate and sticks on the colour developing indicator paper block with test function of substrate front end, the colour developing indicator paper block has flooded eriochrome black T, disodium EDTA, magnesium sulphate, sodium carbonate and deionized water mixed liquor, because colour developing indicator paper block manufacture difficulty is big, very easily cause test error, this prescription is not made the colour developing indicator paper block can't directly apply to test again.
Three, summary of the invention
The object of the present invention is to provide a kind of use simple, the test agent that cost is low, the above-mentioned method of inspection of replacement is carried out the total hardness assay to Industrial Boiler water.
The object of the present invention is achieved like this, promptly adopt disodium ethylene diamine tetraacetate (EDTA) titration ratio juris, require with " the Industrial Boiler water quality standard " of State Quality Supervision Bureau issue regulation industrial all kinds of boilers to give the total hardness of water ceiling value be benchmark, select disodium ethylene diamine tetraacetate (EDTA), eriochrome black T, ethylenediamine tetraacetic acid magnesium disodium, natrium carbonicum calcinatum, sodium bicarbonate, sodium chloride is formed this test agent, and the parts by weight of each component are: disodium ethylene diamine tetraacetate (EDTA) 0.03-5, eriochrome black T 0.5-1.0, ethylenediamine tetraacetic acid magnesium disodium 3-8, natrium carbonicum calcinatum 80-100, sodium bicarbonate 60-100, sodium chloride 30-100; Above-mentioned component is pulverized and is mixed promptly.
Above-mentioned test agent is the influence that prevents various factors in alternate processes, preferably selects for use can in capsule; According to the difference of test agent consumption, can be in capsule by various ormal weight cans.
This test agent is suitable for the mensuration of Industrial Boiler water and similar water body determining total hardness of water.
The present invention compared with prior art has following advantage:
1, replaced disodium ethylene diamine tetraacetate (EDTA) titration measuring boiler feed water total hardness, a step is detected, and has saved professional's assay process, not only human-saving, material resources but also save financial resources.
2, simple, the technical conditions of production technology are controlled easily, and product qualification rate reaching is more than 98%, and production cost is low, and is pollution-free, easy to use, can take a sample local measurement at any time.Effective, high efficiency, cost is low.
3, be applied to industrial all types of boiler, have wide popularization and application to be worth.
Four, embodiment
Disodium ethylene diamine tetraacetate in the test capsule (EDTA) is the Main Ingredients and Appearance of measuring, calculate the size of hardness by consumption, natrium carbonicum calcinatum, sodium bicarbonate play buffer action in mensuration, be not subjected to the room temperature variable effect, and detected water sample PH is maintained in 10 positive and negative 0.1 scopes.
Mg in the ethylenediamine tetraacetic acid magnesium disodium salt
++Be to substitute Ca
++Play complex reaction and make variable color more obvious, sodium chloride is that protection indicator eriochrome black T is not easy oxidation in water.
The chemical reaction of component in the test capsule in water sample carries out at short notice fully.
Embodiment:
| Embodiment | Component and consumption (disodium ethylene diamine tetraacetate [EDTA], ethylenediamine tetraacetic acid magnesium disodium, eriochrome black T, natrium carbonicum calcinatum, sodium bicarbonate, sodium chloride are solid-state employing gram) | |||||
| Disodium ethylene diamine tetraacetate (EDTA) | Ethylenediamine tetraacetic acid magnesium disodium | Eriochrome black T | Natrium carbonicum calcinatum | Sodium bicarbonate | Sodium bicarbonate | |
| ????1 | ????0.5 | ????3 | ????0.3 | ????100 | ????60 | ????30 |
| ????2 | ????0.6 | ????5 | ????0.5 | ????90 | ????80 | ????50 |
| ????3 | ????1.2 | ????8 | ????0.8 | ????80 | ????100 | ????90 |
Component mixing, pulverizing, the can capsule of pressing the foregoing description promptly get product.
The process of total hardness test capsule test boiler feed water total hardness of the present invention: water sampling (boiler feed water) 100ml, inject the 250ml Erlenmeyer flask, get one of 200mg total hardness test capsule, pour in the Erlenmeyer flask after opening and rock slightly, with water sample color and standard colors version according to get final product the total hardness value, measurement result is consistent with result of laboratory test; The standard colors version be prepared as routine techniques.
Claims (3)
1, a kind of water quality test agent for total hardness, it is characterized in that: it is made up of disodium ethylene diamine tetraacetate (EDTA), eriochrome black T, ethylenediamine tetraacetic acid magnesium disodium, natrium carbonicum calcinatum, sodium bicarbonate, sodium chloride, and the parts by weight of each component are: disodium ethylene diamine tetraacetate 0.03-5, eriochrome black T 0.5-1.0, ethylenediamine tetraacetic acid magnesium disodium 3-8, natrium carbonicum calcinatum 80-100, sodium bicarbonate 60-100, sodium chloride 30-100; Above-mentioned component is pulverized and is mixed promptly.
2, water quality test agent for total hardness according to claim 1 is characterized in that: this test agent can is in capsule.
3, water quality test agent for total hardness according to claim 2 is characterized in that: this test agent is measured can in accordance with regulations in capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410088549 CN1603800A (en) | 2004-11-09 | 2004-11-09 | Water quality test agent for total hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410088549 CN1603800A (en) | 2004-11-09 | 2004-11-09 | Water quality test agent for total hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1603800A true CN1603800A (en) | 2005-04-06 |
Family
ID=34667154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410088549 Pending CN1603800A (en) | 2004-11-09 | 2004-11-09 | Water quality test agent for total hardness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1603800A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388149A (en) * | 2015-10-27 | 2016-03-09 | 广东环凯微生物科技有限公司 | Reagent and method for fast detecting water quality total hardness |
| CN107228856A (en) * | 2017-08-11 | 2017-10-03 | 中国锅炉水处理协会 | A kind of boiler feedwater quality hardness test agent and its preparation |
| CN108333296A (en) * | 2018-01-26 | 2018-07-27 | 山东五洲检测有限公司 | A kind of determining total hardness of water detection agent and preparation method thereof |
| CN110726718A (en) * | 2019-11-05 | 2020-01-24 | 长春万成生物电子工程有限公司 | Test paper for detecting water hardness, preparation method and detection method thereof |
-
2004
- 2004-11-09 CN CN 200410088549 patent/CN1603800A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388149A (en) * | 2015-10-27 | 2016-03-09 | 广东环凯微生物科技有限公司 | Reagent and method for fast detecting water quality total hardness |
| CN107228856A (en) * | 2017-08-11 | 2017-10-03 | 中国锅炉水处理协会 | A kind of boiler feedwater quality hardness test agent and its preparation |
| CN108333296A (en) * | 2018-01-26 | 2018-07-27 | 山东五洲检测有限公司 | A kind of determining total hardness of water detection agent and preparation method thereof |
| CN110726718A (en) * | 2019-11-05 | 2020-01-24 | 长春万成生物电子工程有限公司 | Test paper for detecting water hardness, preparation method and detection method thereof |
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