Customization: | Available |
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CAS No.: | 100-21-0 |
Formula: | C8h6o4 |
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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.
Item
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Top grades
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First grade
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Appearance
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White powder
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White powder
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Acid value /(mgKOH/g)
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675±2
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675±2
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P-Carboxybenzaldehyde/(mg/Kg)
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≤25
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≤25
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p-methylbenzaldehyde /(mg/Kg)
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≤150
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≤180
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Ignition residue/(mg/Kg)
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≤6
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≤10
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Total heavy metal (Mo,Cr, Ni, Co, Mn,Fe )/(mg/Kg)
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≤3
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≤5
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Fe/(mg/Kg)
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≤1
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≤2
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moisture W/%
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≤0.2
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≤0.2
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DMF tinct(5g/100ml)/Hazen unit
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≤10
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≤10
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(Platinum cobalt color number)
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b*value
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≤1.4
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≤1.5
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Particle size distribution
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250μm W/%
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7.9
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7.9
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45μm W/%
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10.2
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10.2
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average grain diameter/μm(sieve method)
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128
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128
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25kg/ carton or 25kg/bag, or 1200kg/bag
Q1: May I get sample before placing order?
Re: Yes, Sample are available. For small samples is free and you just need to bear the freight;
Q2: Which payment is available for your company?
Re: T/T, L/C at sight. You can choose the one which is convenient foryou.
Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier within 2 days(DHL, FedEx, TNT etc.) For large quantity products, shipping by sea is worthwhile.It will cost days to weeks to come to your destination port, which depends on where the port is.
Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.
Q5: How can you guarante the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products
we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.