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Purified Terephthalic Acid (PTA)
Terephthalic acid is the organic compound with formula C6H4(COOH)2. This colourless solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles. Several million tones are produced annually. It is one of three isomeric phthalic acids.
The second type is polyester plasticizer, which is the product of esterification and condensation reaction between terephthalic acid and polyols (such as diethylene glycol, triethylene glycol, glycerol, propylene glycol, butanediol, etc.). Its molecular weight is generally between 1000-4000 (the relative molecular weight of polyester used as plasticizer is much smaller than that of polyester used in chemical fiber and plastic packaging).
- Terephthalic acid is consumed as precursors to polyethylene terephthalate (PET).
- Terephthalic acid is used in paint as a carrier.
- Terephthalic acid is used as a raw material to make terephthalate plasticizers .
- It is used in the pharmaceutical industry as a raw material for certain drugs.
- PTA is an important raw material for lower molecular weight saturated polyesters for powder and water-soluble coatings.
- In the research laboratory, terephthalic acid has been popularized as a component for the synthesis of metal-organic frameworks.
Kami memiliki banyak pabrik berkualitas tinggi dengan kerja sama yang mendalam, yang dapat memberi Anda produk berkualitas tinggi dan harga yang kompetitif. Dan kami juga dapat memberikan diskon untuk pembelian dalam jumlah besar. Dan kami bekerja sama dengan banyak perusahaan ekspedisi profesional, dapat mengirimkan produk dengan aman dan lancar ke tangan Anda. Waktu pengiriman sekitar 3-20 hari setelah konfirmasi pembayaran.
| Barang | Top grades | First grade | |
| Penampilan | 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 | |
Terephthalic acid is an organic compound with formula C6H4(CO2H)2. This white solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles. Several million tons are produced annually.Terephthalic acid is poorly soluble in water and alcohols.
The application of terephthalic acid is relatively concentrated, with over 90% of the world's terephthalic acid used to produce polyethylene terephthalate. Another important application of terephthalic acid is the production of plasticizers.
This includes two types: the first type is dioctyl terephthalate (DOTP), which is the product of esterification reaction between terephthalic acid and industrial octanol (2-ethylhexanol). It is a high-quality plasticizer with high flash point and high specific resistivity, especially suitable for the production of cable materials with high heat resistance and insulation requirements;
1. Apakah Anda pabrik atau perusahaan dagang?
Kami adalah perusahaan yang mengintegrasikan industri dan perdagangan, menyediakan layanan satu atap. OEM dapat diterima.
2. Apakah Anda menyediakan sampel? Apakah gratis atau ekstra?
Sampel gratis. Biaya pengiriman sampel harus dibayar di sisi Anda.
3. Apakah Anda memiliki sertifikat terkait kendali mutu?
Sertifikasi ISO 9001:2008 untuk menjamin kualitas.
4. Apa yang harus saya berikan untuk mendapatkan penawaran?
Mohon informasikan kepada kami tentang jenis produk yang Anda butuhkan, jumlah pesanan, alamat, dan persyaratan spesifik. Kutipan akan dibuat untuk referensi Anda tepat waktu.
5. Metode pembayaran apa yang Anda sukai? Persyaratan apa yang diterima?
Ketentuan Pengiriman yang Diterima: FOB,CFR,CIF,EXW;
Mata Uang Pembayaran yang Diterima: USD;
Jenis Pembayaran yang Diterima: T/T,Western Union; Paypal, Jaminan Perdagangan.
Bahasa yang Digunakan: Bahasa Inggris.
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