Заводская цена купить хлорауриевую кислоту HAuCl4.4h2o Золотой катализатор желтый хлорид порошок


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Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-16-2025 0.15 $* 0.22 $*
Aug-16-2025 0.24 $* 0.30 $*
Jul-16-2025 0.37 $* 0.64 $*
Jun-16-2025 0.88 $* 0.44 $*
May-16-2025 0.32 $* 0.97 $*
Apr-16-2025 0.17 $* 0.40 $*
Mar-16-2025 0.64 $* 0.30 $*
Feb-16-2025 0.62 $* 0.15 $*
Jan-16-2025 0.48 $* 0.65 $*

Характеристики





Products Description




Chloroauric acid

Chloroauric acid Description
CAS No. :16903-35-8
EINECS No.:240-948-4
Molecular weight: 339.78
HS Code:2843300090
Molecular Formula: \tAuCl4H
Package: 1 gram/5 grams/10 grams bottle etc or according to clients request.

Chloroauric acid Product Introduction:

Alias Name: Chloroauric acid, Gold chloride acid, Auric acid, Gold chloride tetrahydrate, Gold trichloride hydrochloride, Tetrachloroauric acid, Aurochloric acid , Hydrogen tetrachloroaurate, Hydrogen aurchloride
Chloroauric acid is the inorganic compound with the formula HAuCl4. It is an orange-yellow solid, a common precursor to other gold compounds and an intermediate in the purification of gold metal. Commercial samples have the composition HAuCl4•n H2O with n = 3 or 4.

Chloroauric acid Usage :
It can be used for partial gold plating of semiconductor and integrated circuit lead frame, and gold plating of printed circuit board, electronic connector and other electrical contact components. Also can make red glass. Used as an analytical reagent for microanalysis of rubidium and cesium and measurement of alkaloid composition. Also used for photographic materials.
Chloraurate salts, especially sodium chloraurate Na[AuCl4] (prepared from the reaction of AuCl3 with NaCl), can replace toxic mercury (II) salts as catalysts for alkyne reactions.
At the same time, chloro-auric acid plays an important role in the preparation of nanoscale gold, and the fluorescent nano-gold produced by chloro-auric acid is usually directly reduced by reducing agent, which has an important application in analytical chemistry.



Specification


AU 47.8%
Test Item
Result
HAuCl4·4H20
≥99.9
Au
47.8
Other Metallic Cation Impurities (MB)
Pd
≤0.020
Pt
≤0.020
Ru
≤0.020
Ir|
≤0.020
Ag
≤0.005
Cu
≤0.005
Fe
≤0.005
Ni
≤0.005
Al
≤0.005
Pb
≤0.005
Si
≤0.005


AU 50%
Test Item
Result
HAuCl4·4H20
≥99.9
Au
>50%
Other Metallic Cation Impurities (MB)
Pd
<0.002
Pt
<0.002
Rh
<0.002
Ir
<0.002
Fe
<0.0005
Ni
<0.0002
Pb
<0.0005
Si
<0.0005
N
≤0.01








Company Profile




JINAN SINTOP CO.,LIMITED is located in Boke Group headquarters of China (Shandong) Pilot Free Trade Zone. Our company has cooperative relations with domestic first-class universities and scientific research institutions. We have more than ten years of export experience for chemical products. Our products has exported to many countries and regions in North and South America, Asia, Middle East and so on, have high reputation and popularity in the world. The sales and service of our products conform to ISO9001 international quality system.

Company mission: continue to innovate products and service, for provide customers with quality chemical products.
Company vision: to become the most professional chemical products sales and service platform in China.
Company Core values: integrity, responsibility, cooperation, innovation, efficiency.

We adhering to the "integrity-based, pursue excellence, mutual benefit” corporate culture. We are looking forward to establishing long-term and stable cooperative relations with customers from all over the world.




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FAQ


1. Q: How to confirm the product quality before placing orders?
A: You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can also send us your product specifications and requests, we will manufacture the products according to your requests.

2. Q: How to start orders or make payments?
A: You can send a confirmation by Inquiry or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, and send it to your E-mail. You can make payment accordingly.

3. Q: How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.

4. Q: Could you offer free sample for quality test?
A: Free sample are available for customers. It is our pleasure for service for you.


High quality Best price Buy Catalyst yellow HAuCl4.4H2O Chloroauric acid gold chloride powder 47.8% 50% CAS 16903-35-8


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