If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
Fortfahren mit
D54702
Dichloressigsäure
≥99%, liquid, ReagentPlus®
Synonym(e):
2,2-Dichloroacetic acid, DCA, DCAA
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Über diesen Artikel
Produktname
Dichloressigsäure, ReagentPlus®, ≥99%
vapor density
4.5 (vs air)
Quality Segment
vapor pressure
0.19 mmHg ( 20 °C)
product line
ReagentPlus®
assay
≥99%
form
liquid
concentration
≤100%
refractive index
n20/D 1.466 (lit.)
pH
(1,2 at-129 g/l at 20 °C)
bp
194 °C (lit.)
mp
9-11 °C (lit.)
solubility
water: soluble
density
1.563 g/mL at 25 °C (lit.)
functional group
carboxylic acid, chloro
storage temp.
2-8°C
SMILES string
OC(=O)C(Cl)Cl
InChI
1S/C2H2Cl2O2/c3-1(4)2(5)6/h1H,(H,5,6)
InChI key
JXTHNDFMNIQAHM-UHFFFAOYSA-N
Gene Information
human ... ALDH1A1(216), PDK1(5163)
rat ... Pdk1(116551)
General description
Application
- Reaktant bei der Synthese von Chlorketonen durch Reaktion mit Estern in Gegenwart von LiHMDS über eine Homologationsreaktion vom Claisen-Typ.
- Strukturgebendes Mittel, Lösungsmittel oder Plast-Dotierstoff für die Herstellung verschiedener Morphologien von Polyanilin (PANI). Aufgrund der vorhandenen starken Wasserstoffbrückenbindung zwischen DCA und Anilin/Polyanilin kann selbstkonfektionierendes nanostrukturiertes PANI gebildet werden.
Legal Information
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| concentration ≤100% | concentration - | concentration - | concentration ≤100 ppm in H2O |
| assay ≥99% | assay - | assay ≥98.0% (GC) | assay - |
| Quality Level 200 | Quality Level - | Quality Level 200 | Quality Level 100 |
| form liquid | form - | form liquid | form liquid |
| pH (1,2 at-129 g/l at 20 °C) | pH - | pH 1.2 (20 °C, 129 g/L in H2O) | pH - |
| solubility water: soluble | solubility - | solubility - | solubility - |
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signalword
Danger
Hazard Classifications
Acute Tox. 3 Dermal - Aquatic Acute 1 - Carc. 2 - Eye Dam. 1 - Lact. - Met. Corr. 1 - Repr. 1B - Skin Corr. 1A - STOT RE 2 Oral
target_organs
Brain,Liver,Testes
supp_hazards
Lagerklasse
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
235.4 °F - closed cup
flash_point_c
113 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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What is the molarity of the DCA solution and is the diluent water?
1 answer-
The concentration of this product can be determined using the lot specific purity reported in the Certificate of Analysis, the density, and the compound molecular weight. This product has a density of 1.563 g/mL and a molecular weight of 128.94 g/mol. The minimum purity is 99.0 %, thus, the molarity will vary slightly from lot to lot. The molarity can range from 12.0 M (98.5%) to 12.1 M (100%).
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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