THIONALIDE
- CAS No.
- 93-42-5
- Chemical Name:
- THIONALIDE
- Synonyms
- THIONALIDE;Thiolglycolic-β-aminonaphthalide;2-mercapto-n-2-naphthylacetamide;Thionalide [for Cu Determination];2-Mercapto-N-(2-naphtyl)acetamide;ALPHA-MERCAPTO-N,2-NAPHTHYLACETAMIDE;N-naphthalen-2-yl-2-sulfanylacetamide;N-(2-Naphthalenyl)-2-mercaptoacetamide;Acetamide, 2-mercapto-N-2-naphthalenyl-;N-naphthalen-2-yl-2-sulfanyl-ethanamide
- CBNumber:
- CB4492757
- Molecular Formula:
- C12H11NOS
- Molecular Weight:
- 217.29
- MDL Number:
- MFCD00059137
- MOL File:
- 93-42-5.mol
| Melting point | 111-112° |
|---|---|
| Density | 1.1799 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| solubility | Sparingly soluble in water, readily soluble in organic solvents. The solubility in water is considerably increased by addition of relatively small amounts of ethanol or acetic acid. |
| form | White or pale yellow needles. |
| FDA UNII | 5M3H598CDM |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS07,GHS05,GHS09 |
|---|---|
| Signal word | Danger |
| Hazard statements | H335-H411-H318-H315 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P280-P305+P351+P338-P310 |
THIONALIDE price More Price(3)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S860522 | 2-MERCAPTO-N-(2-NAPHTHYL)ACETAMIDE Aldrich | 93-42-5 | 50mg | $179 | 2024-03-01 | Buy |
| American Custom Chemicals Corporation | CHM0165409 | THIONALIDE 98.00% | 93-42-5 | 100MG | $965.58 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0165409 | THIONALIDE 98.00% | 93-42-5 | 100G | $5375.58 | 2021-12-16 | Buy |
THIONALIDE Chemical Properties,Uses,Production
Uses
Thionalide reacts with a variety of metal ions to give chelate complexes which
are sparingly soluble in water. The difference in stability of complexes formed by
the reagent with various metal ions in some cases assures a certain analytical
selectivity.
1. Copper(II), silver(I), mercury(II), bismuth(III), arsenic(III), tin(IV), gold(I),
platinum(IV) and palladium(II) give precipitates with the reagent in acidic media
(mineral acids).
2. The copper(II), mercury(II), cadmium(II), thallium(I) and gold(I) complexes
precipitate from alkaline solutions containing tartrate.
3. Thallium(I), antimony(III) and bismuth(III) complexes are precipitated by
the reagent from solutions containing cyanide and tartrate.
4. The thallium(I) complex also precipitates from alkaline (sodium hydroxide)
solution containing cyanide and tartrate.
The above classification shows that the reaction can be made specific for
thallium by appropriate choice of the pH of the solution and application of
suitable masking agents. Similarly, the selectivity of the precipitation reaction can be increased for other ions too, by application of other masking agents. For
instance, tin(IV) can be masked selectively in the presence of arsenic(III) and
antimony(III) with phosphoric acid, while these latter two ions can be precipitated
with thionalide.
The analytical application of thionalide is stimulated by the fact that its metal
complexes are of stoichiometric composition, and can be dried at 105-110°C
and weighed directly.
The reagent may also be utilized in volumetric analytical procedures. The thionalide
content, which is equivalent to the metal to be determined, can be titrated
directly iodometrically, according to the equation:
2C10H7-NH-CO-CH2-SH+I2=C10H7-NH-CO-CH2-S-S-CH2-CO-NH-C10H7+2HI.
Uses
As a reagent for copper, mercury, silver, thallium, and bismuth.
THIONALIDE Preparation Products And Raw materials
Raw materials
Preparation Products
THIONALIDE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| TargetMol Chemicals Inc. | +1-781-999-5354 | support@targetmol.com | United States | 19973 | 58 |
| TargetMol Chemicals Inc. | 4008200310 | marketing@tsbiochem.com | China | 24131 | 58 |
| Supplier | Advantage |
|---|---|
| TargetMol Chemicals Inc. | 58 |
| TargetMol Chemicals Inc. | 58 |