The 50% basis indicates the amount of Gold (Au) present in this product. This value may range from 47 - 53%. The remaining mass is attributed to chloride and water (hydrate content). This information is reported in the product Certificate of Analysis. Please see the link below to review a sample or lot-specific Certificate:
https://www.sigmaaldrich.com/product/aldrich/50790#product-documentation
50790
Gold(III) chloride hydrate
~50% Au basis
Synonym(s):
Auric chloride, Chloroauric acid, Hydrogen tetrachloroaurate(III) hydrate, Tetrachloroauric(III) acid
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| Size/SKU | Availability | Price |
|---|---|---|
250 mg | Available to ship TODAY | $98.20 |
1 g | Available to ship TODAY | $293.00 |
5 g | Available to ship TODAY | $1,180.00 |
About This Item
Linear Formula:
HAuCl4 · aq
CAS Number:
Molecular Weight:
339.79 (anhydrous basis)
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
240-948-4
MDL number:
Form:
powder or crystals
$98.20
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Quality Segment
form
powder or crystals
reaction suitability
core: gold
concentration
~50% Au
color
yellow
density
3.9 g/mL at 25 °C
SMILES string
O.Cl.Cl[Au](Cl)Cl
InChI
1S/Au.4ClH.H2O/h;4*1H;1H2/q+3;;;;;/p-3
InChI key
OVJUDSKPNIBLOO-UHFFFAOYSA-K
General description
Gold (III) chloride hydrate,also known as chloroauric acid, is used as precursor to synthesize gold nanoparticles. It also exihibits very high catalytic activity.
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This Item | |||
|---|---|---|---|
| description ~50% Au basis | description 99.995% trace metals basis | description ~52% Au basis | description 99.99% trace metals basis, 30 wt. % in dilute HCl |
| form powder or crystals | form crystals and lumps | form powder | form liquid |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| density 3.9 g/mL at 25 °C | density 3.9 g/mL at 25 °C | density 3.9 g/mL at 25 °C | density 1.637 g/mL at 25 °C |
| reaction suitability core: gold | reaction suitability reagent type: catalyst, core: gold | reaction suitability core: gold | reaction suitability core: gold |
| concentration ~50% Au | concentration - | concentration ~52% Au | concentration 30 wt. % in dilute HCl |
| color yellow | color - | color brown | color - |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT RE 2 Oral
Target Organs
Kidney
Storage Class
8B - Non-combustible corrosive hazardous materials
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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What 50% basis mean
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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