
Cyclopentanethiol CAS 1679-07-8




Factory Supply Cyclopentanethiol CAS 1679-07-8 with Best Price
- Appearance: Clear colorless to pale yellow
- Purity: 97. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: Cyclopentanethiol Supplier & Manufacturer
Cyclopentanethiol for Sale
Basic Info of Cyclopentanethiol
Chemical Name: | Cyclopentanethiol |
Other Name: | Mercaptancyclopentylique |
CAS: | 1679-07-8 |
EINECS: | 216-841-3 |
Type: | Flavors And Fragrances |
Molecular Formula: | C5H10S |
Molecular Weight: | 102.2 |
Melting point | -117.76°C |
Boiling point | 129-131 °C/745 mmHg (lit.) |
Density | 0.955 g/mL at 25 °C (lit.) |
Vapor density | 0.96 (vs air) |
Vapor pressure | 1 mm Hg ( 20 °C) |
Refractive index | n20/D 1.4902(lit.) |
Fp | 77 °F |
Form | Liquid |
Pka | 10.87±0.20(Predicted) |
Color | Clear colorless to pale yellow |
Water Solubility | Slightly soluble in water; soluble in alcohol and oils. |
Brand Name: | Zhishang Chemical |
Provide: | Cyclopentanethiol MSDS; Cyclopentanethiol COA |
What is Cyclopentanethiol?
Cyclopentyl mercaptan belongs to a class of organic compounds called alkyl mercaptans. These are organic compounds containing mercaptan functional groups linked to alkyl chains. Cyclopentyl mercaptan is a compound with onion, celery and citrus flavor.
It is synthesized from cyclopentyl bromide and potassium hydrogen sulfide. Or synthesized from cyclopentanone dimethyl dithioacetaldehyde and four moles of an alkali metal; It can also be prepared from sulfurized cyclopentyl naphthyl in the presence of a metal aluminosilicate catalyst.
Cyclopentanethiol Uses
Cyclopentanethiol has been used as a food flavoring. It is a pharmaceutical intermediate.
Food spice. For bakery products, meat products, soups, dairy products, condiments, cereals, all 0.1mg/kg.
Application of Cyclopentanethiol
CN202110291866.2 reports a preparation method of silver telluride quantum dots with high brightness and narrow half-maximum width. By regulating the activity of the silver precursor generated by the reaction of silver thiol and phosphine, and using the tellurium precursor synthesized in the air, silver telluride quantum dots with excellent performance were prepared. The technical solutions adopted by the present invention include:
1) Under an inert atmosphere, add the silver source and thiol to the solvent, raise the temperature to the first temperature, add the organic phosphine, and obtain solution A;
2) Preparation of tellurium precursor: Mix tellurium powder and organic phosphine and heat in air to obtain solution B;
3) Under an inert atmosphere, heat solution A to the second temperature, hot-inject freshly prepared solution B into solution A, rapidly cool to the third temperature, react for 1 to 40 minutes, cool to room temperature, and obtain telluride after purification. Silver quantum dots.
The activity of the silver precursor can be controlled by adjusting the type and amount of thiol and organic phosphine in step 1). The preferred molar feed ratio of thiol, organic phosphine and silver source is 7:1:1.
The size of the quantum dots during nucleation is adjusted by adjusting the molar ratio of the silver source in step 1) to the tellurium precursor in step 3), thereby controlling the emission wavelength.
The mercaptan in step 1) can be selected from at least but not limited to alkyl mercaptan having 8 to 18 carbon atoms, cyclohexane mercaptan and cyclopentyl mercaptan.
CN201811352989.7 provides a method for preparing modified activated carbon for recovering Au(S2O3)23- in solution, that is, using a cyclic thiol solution as an activated carbon modifier, and preparing a cyclic thiol modified activated carbon by an impregnation method. ; Specifically includes the following steps:
(1) Wash with deionized water to remove the ash from the activated carbon, filter and dry;
(2) Place the activated carbon in a ring thiol solution with a concentration of 0.1g/L ~ 20g/L, soak it at room temperature for 0.5 h ~ 48 h, filter and dry to prepare modified activated carbon.
Preferably, the ring-containing thiol of the present invention is a thiol containing at least one thiol group in the molecular structure and a ring structure.
Further, the ring-containing thiols of the present invention are 2-mercaptobenzoxazole and its derivatives, 2-mercaptobenzimidazole and its derivatives, 2-mercaptothiazoline and its derivatives, dimercaptothiadiazole One or a mixture of one or more of its derivatives, thiocyanate, and cyclopentanethiol.
The beneficial effects of the present invention are:
(1) The present invention improves the adsorption capacity of activated carbon for Au(S2O3)23- by loading cyclic thiol on the surface of activated carbon, and can effectively adsorb gold in the thiosulfate gold leaching solution. No use is required during the entire modification process. Any toxic substances containing cyanide (CN-) or heavy metals; it overcomes the cyanide contamination of the current activated carbon-loaded copper cyanide ion (Cu(CN)42-) adsorption and recovery of Au(S2O3)23- and the presence of Prussian blue. The modification process is complex and it is difficult to continuously adsorb and other shortcomings.
(2) The preparation process of the modified activated carbon of the present invention is simple, the modification cost is low, and the recovery rate of gold is high; the prepared activated carbon has multiple adsorption capabilities; and the solvent and ring thiol can be fully recovered, multiple times Recycling, no toxic waste emissions, environmentally friendly.
(3) The modified activated carbon can adapt to a wide pH range of the adsorption solution, and the activated carbon has good adsorption effect in the range of pH ≥ 6; the prepared activated carbon can be continuously adsorbed to meet the requirements of industrial production.
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Cyclopentanethiol for Sale
References
- Cyclopentanethiol – PubChem
- [Chinese invention] CN202110291866.2 A method for controllable synthesis of near-infrared silver telluride quantum dots
- [Chinese invention] CN201811352989.7 Preparation method and application of ring thiol-modified activated carbon
Cyclopentanethiol Supplier and Manufacturer
As a cyclopentanethiol supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best cyclopentanethiol raw materials to customers all over the world.
Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.
If you have a demand for cyclopentanethiol and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.
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Do you accept sample order?
We will make samples before mass production, and after the sample is approved, we’ll begin mass production. Doing 100% inspection during production, then doing random inspection before packing.
What’s your MOQ?
Our MOQ is 1kg. But usually we accept less quantities, such as 100g on the condition that the sample charge is 100% paid.
Is there a discount?
The different quantity has different discount.
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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 send us your product specifications and requests, we will manufacture the products according to your requests.
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1. ≤50kg, Express delivery recommended, usually called DDU service;
2. ≤500kg, Air shipping recommended, usually called FOB, CFR, or CIF service;
3. >500kg, sea shipping recommended, usually called FOB, CFR, or CIF service;
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