Our refund policy
If any of our products fall below the high standard you expect, we'll happily refund or exchange it within 14 days. We will also refund or exchange it if you change your mind within 14 days, provided you return it as sold with all the original packaging, tags, labels and accessories. You'll need your order confirmation email to do this.
How to return your product
Product can only be returned to us once a valid returns number has been obtained. To return your item, call us on 03300 888 000 and provide us with your order and item details. We will confirm your returns number which you will need to note on the paperwork that you return with the item. We will also arrange for a courier to collect your goods [please note that a charge may apply depending on the reason for return]. Please make sure courier collected products are well packaged for their return journey.
Our electrical policy
If your electronic product develops a fault, call customer services on 03300 888 000. Our fully trained technical team can support you with advice on setup, parts or repairs for electrical products. If we can't repair it, we'll offer a replacement or a refund.
Please note that no returns will be accepted without a return number being provided by our Customer Service team in advance of return.
AnalaR NORMAPUR® Tartaric Acid, Reagent, 250g
Product code: 140-6243| Specifications | ||
|---|---|---|
| grade | reag. ISO, reag. Ph. Eur. | |
| vapor density | 5.18 (vs air) | |
| grade | puriss. p.a. | |
| assay | 99.5-101.0% (calc. to the dried substance) | |
| form | powder or crystals | |
| optical activity | [?]20/D +12.0 to +12.8°, c = 20% in H2O | |
| autoignition temp. | 797 °F | |
| impurities | ?0.0005% heavy metals (as Pb) | |
| ?0.02% oxalic acid | ||
| ign. residue | ?0.01% (as SO4) | |
| loss | ?0.1% loss on drying, 105 °C | |
| mp | 170-172 °C (lit.) | |
| anion traces | chloride (Cl-): ?5 mg/kg | |
| oxalate (C2O42-): in accordance | ||
| phosphate (PO43-): ?10 mg/kg | ||
| sulfate (SO42-): ?150 mg/kg | ||
| cation traces | Ca: ?20 mg/kg | |
| Cu: ?5 mg/kg | ||
| Fe: ?5 mg/kg | ||
| Pb: ?2 mg/kg | ||
| Zn: ?5 mg/kg | ||
| suitability | complies for appearance of solution | |
- Safety Data SheetView
