| 성 명 |
초향화 |
전자우편 |
100004 |
|---|
| 업 체 명 |
오미중연회사 |
연 락 처 |
중국북경 |
|---|
| 제 품 명 |
2,2-BIS(HYDROXYMETHYL)PROPANOIC ACID |
|---|
| Quality/Grade |
99% |
|---|
| 수 량 |
100톤/월 M/T |
단 가 |
상담으로원 / M/T |
|---|
| 마 감 일 |
2001-05-28 |
등 록 일 |
01-05-28 |
|---|
| 제품규격 |
1. Chemical Property of Dimethylolpropionic Acid
Its molecular weight is 134.19(according to the 1995 International Standard). The central carbon atom is linked with 1 tertiary carboxyl and 2 primary hydroxyls. This kind of molecular structure makes produces good heat resistance,hydrolyses resistance, and color stability. Two tertiary hydroxides decide that DMPA has typical dual alcohol property and can undergo polycondensation .The hydroxides of low activity can be maintained, making the polymer highly hydrophilic.
2. Product Quality Standard
Item Index Item Index
appearance White Powder Crystal Peroxide ≤0.01%
Schreen Mesh Standard 99%Passing Through 40 Mesh，80% Passing Through 80 Mesh Iron ≤10PPM
Content ≥99% Water ≤0.3%
Hydroxyl Value ≥24% Ash ≤0.03%
Melting Point ≥180℃ Color Degree ≤200#
Aldehyde Residue ≤0.03%
3. Application of Dimethylolpropionic Acid （DMPA）
Presently, DMPA has been widely applied to the production the emulsified coating agent for leather.Besides, it can be applied to the manufacturing of polyester dope, photosynthetic substance, liquid crystal of new type, adhesive and magnetic recording materials etc. Adding DMPA can improve the stability, hydrophilic property, homogeneous property, and endurance property.
4. Application Caution
1. Hermetically stored in cool and dry place, cushioned with 10 cm-thick board, 50cm away from the wall.
2. Strictly controlling water affection in application: Samples of small amount must be measured 10 minutes before application, or put this kind of sample in a small plastic bag and tightly tied the mouth of the bag up to keep the sample dry until immediately before adding it.
3、Gently knocking the product with a small stick to break the loose lumps formed during transportation and long-term storage by weight and internal attraction and to make the DMPA powder evenly dissolved in reactive solution.
4.In order to improve DMPA effect, its sample can be dissolved in dimethyformamide(1:1) before putting it into reactive solution.
5. In the case of water content exceeding 3‰ after long-term storage, it must be dried by heating to keep the water content below 2‰ before application.
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23-10-11
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23-11-21
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23-07-22
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23-09-02
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