| CAS No.: | 100-21-0 |
|---|---|
| Formula: | C8h6o4 |
| EINECS: | 262-050-1 |
| Appearance: | Powder |
| Colour: | White |
| Transport Package: | Bag |
| Samples: |
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| Customization: |
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Top Grade High Quality CAS 100-21-0 Purified Terephthalic Acid Pta
White acicular crystal or powder. Combustible. Low toxic. Density 1. 510g/cm3. Sublimation at about 402ºC under atmospheric pressure. In a sealed tube, melting at about 425 ° C. Soluble in alkaline solution, slightly soluble in hot ethanol, insoluble in water, ether, glacial acetic acid and chloroform.
| Item | Top grades | First grade | |
| Appearance | White powder | White powder | |
| Acid value /(mgKOH/g) | 675±2 | 675±2 | |
| P-Carboxybenzaldehyde/(mg/Kg) | ≤25 | ≤25 | |
| p-methylbenzaldehyde /(mg/Kg) | ≤150 | ≤180 | |
| Ignition residue/(mg/Kg) | ≤6 | ≤10 | |
| Total heavy metal (Mo,Cr, Ni, Co, Mn,Fe )/(mg/Kg) | ≤3 | ≤5 | |
| Fe/(mg/Kg) | ≤1 | ≤2 | |
| moisture W/% | ≤0.2 | ≤0.2 | |
| DMF tinct(5g/100ml)/Hazen unit | ≤10 | ≤10 | |
| (Platinum cobalt color number) | |||
| b*value | ≤1.4 | ≤1.5 | |
| Particle size distribution | 250μm W/% | 7.9 | 7.9 |
| 45μm W/% | 10.2 | 10.2 | |
| average grain diameter/μm(sieve method) | 128 | 128 | |
Q: Are you a trade company or factory?
A: We are a factory based trading company, we have two specialized warehouses in Zibo and Qingdao port.
Q: How can I get sample for testing?
A: Kindly send us your address, and we will arrange sample for you immediately.
Q: What is your main product?
A: Our main products are ammonium chloride, calcium chloride, sodium metabisulfite, adipic acid, cyclohexanone, and glacial acetic acid, etc.
Q: How do you control the quality?
A: Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.
Q: How long time you can make the shipping?
A: We can make the shipping within 10 days after confirming the order.
Q: Where is your factory located? How can I visit the factory?
A: Our factory located in Zibo, China. It is only two hours from Beijing.
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