RO85716B1 - Process for preparing tetrachloroauric acid and the highly pure sodium salt thereof - Google Patents
Process for preparing tetrachloroauric acid and the highly pure sodium salt thereofInfo
- Publication number
- RO85716B1 RO85716B1 RO109598A RO10959883A RO85716B1 RO 85716 B1 RO85716 B1 RO 85716B1 RO 109598 A RO109598 A RO 109598A RO 10959883 A RO10959883 A RO 10959883A RO 85716 B1 RO85716 B1 RO 85716B1
- Authority
- RO
- Romania
- Prior art keywords
- acid
- gold
- high purity
- resulting
- purified
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedeul de obtinere a avidului tetracloruric si a sarii lui de sodiu, de înalta puritate, conform inventiei, prevede dizolvarea în apa regala, a cantitatii necesare de aur 99,96% puritate, în vederea purificarii acestuia, rezultînd o solutie acidacu continut de aur care se aduce la sec si se trateaza cu acid bomhidric, pentru trecerea aurului în acidul tetrabromauric, care se reduce ca acid ascorbic, rezultînd aurul metalic purificat, care se redizolva în apa regala de înalta puritate, solutiase aduce la sec si se reia cu acid clorhidric de înalta puritate, rezultînd acidul tetracloruric, care se utilizeaza ca atare sau se trateaza cu cantitatea necesara de clorura de sodiu, purificata preliminar, pentru a obtine tetracloruratul de sodiu.în scopul obtinerii aurului, cît si a clorcomplecsilor acestuia de înalta puritate, se efectueaza reducerea acidului tetrabromauric rezultat din aurul de 99,96% puritate dizolvat initial, la aur metalic purificat prin precipitarea cu acid ascorbicînmediu de acid bromhidric 6 N si înfiolarea fiecarui gram de acid tetracloruric, sub forma de solutie 60% a aurului de înalta puritate în acid clorhidric 0,1 N, urmata de cristalizarea fiolelor în aceasta forma.The process for obtaining the high purity sodium tetrachloride and salt thereof according to the invention provides for the dissolution in the royal water of the required amount of 99.96% pure gold to purify it, resulting in a gold-containing acidic solution is brought to dryness and treated with bicarbonate to pass gold to the tetrabromauric acid, which is reduced as ascorbic acid, resulting in the purified metallic gold, which is redissolved in royal water of high purity, the solution is brought to dryness and resuspended with hydrochloric acid of high purity, resulting in tetrachloruric acid, which is used as such or treated with the necessary amount of sodium chloride, previously purified, to obtain sodium tetrachloride. In order to obtain gold and its high purity chloroforms, reduction of tetrabromauric acid resulting from 99.96% pure gold originally dissolved in metallic gold purified by acid precipitation 6-bromobenzoic acid-ascorbic acid medium and the granulation of each gram of tetrachloruric acid as a 60% solution of high purity gold in 0.1 N hydrochloric acid, followed by crystallization of the ampoules in this form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109598A RO85716B1 (en) | 1983-01-04 | 1983-01-04 | Process for preparing tetrachloroauric acid and the highly pure sodium salt thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109598A RO85716B1 (en) | 1983-01-04 | 1983-01-04 | Process for preparing tetrachloroauric acid and the highly pure sodium salt thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO85716A2 RO85716A2 (en) | 1984-11-25 |
| RO85716B1 true RO85716B1 (en) | 1984-11-30 |
Family
ID=20112496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO109598A RO85716B1 (en) | 1983-01-04 | 1983-01-04 | Process for preparing tetrachloroauric acid and the highly pure sodium salt thereof |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO85716B1 (en) |
-
1983
- 1983-01-04 RO RO109598A patent/RO85716B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO85716A2 (en) | 1984-11-25 |
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