THIONALIDE
- Product Name
- 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
- Formula Weight
- 217.29
- MOL File
- 93-42-5.mol
THIONALIDE Property
- 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.
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
H411Toxic to aquatic life with long lasting effects
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
P321Specific treatment (see … on this label).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
N-Bromosuccinimide Price
- Product number
- S860522
- Product name
- 2-MERCAPTO-N-(2-NAPHTHYL)ACETAMIDE
- Purity
- Aldrich
- Packaging
- 50mg
- Price
- $179
- Updated
- 2024/03/01
- Product number
- CHM0165409
- Product name
- THIONALIDE
- Purity
- 98.00%
- Packaging
- 100MG
- Price
- $965.58
- Updated
- 2021/12/16
- Product number
- CHM0165409
- Product name
- THIONALIDE
- Purity
- 98.00%
- Packaging
- 100G
- Price
- $5375.58
- Updated
- 2021/12/16
THIONALIDE Chemical Properties,Usage,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
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