{"id":3528,"date":"2021-02-05T13:18:22","date_gmt":"2021-02-05T13:18:22","guid":{"rendered":"https:\/\/longchangchemical.com\/?post_type=product&p=3528"},"modified":"2025-12-23T07:01:51","modified_gmt":"2025-12-23T07:01:51","slug":"cyclopentanone-cas-120-92-3","status":"publish","type":"product","link":"https:\/\/longchangchemical.com\/pt\/product\/cyclopentanone-cas-120-92-3\/","title":{"rendered":"Ciclopentanona CAS 120-92-3"},"content":{"rendered":"

Ciclopentanona CAS 120-92-3<\/strong><\/h1>\n

Densidade: 0,951 g\/cm<\/h4>\n

Ponto de fus\u00e3o: - 51 C<\/h4>\n

Ponto de ebuli\u00e7\u00e3o: 130-131 C<\/h4>\n

\u00cdndice de refra\u00e7\u00e3o: 1.436-1.438<\/h4>\n

Ponto de fulgor: 31 C<\/h4>\n

Solubilidade em \u00e1gua: insol\u00favel em \u00e1gua.<\/h4>\n

 <\/p>\n

COA de ciclopentanona<\/strong><\/h2>\n\n\n\n\n\n\n\n\n\n
\n

Item<\/h4>\n<\/td>\n

\n

Padr\u00e3o<\/h4>\n<\/td>\n<\/tr>\n

\n

Apar\u00eancia<\/h4>\n<\/td>\n

\n

L\u00edquido transparente<\/h4>\n<\/td>\n<\/tr>\n

\n

Cor (N\u00ba Hazen)<\/h4>\n<\/td>\n

\n

\u226610<\/h4>\n<\/td>\n<\/tr>\n

\n

Pureza (GC)<\/h4>\n<\/td>\n

\n

\u226799.5%<\/h4>\n<\/td>\n<\/tr>\n

\n

Valor de acidez (mgKOH\/g)<\/h4>\n<\/td>\n

\n

\u22660,5%<\/h4>\n<\/td>\n<\/tr>\n

\n

Impurezas totais<\/h4>\n<\/td>\n

\n

\u22660,5%<\/h4>\n<\/td>\n<\/tr>\n

\n

Teor de \u00e1gua<\/h4>\n<\/td>\n

\n

\u22660,5%<\/h4>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Uso da ciclopentanona<\/strong><\/h2>\n

1. Usando ciclopentanona e n-valeralde\u00eddo como mat\u00e9rias-primas, primeiro sofre condensa\u00e7\u00e3o de aldol e, em seguida, desidrata\u00e7\u00e3o para produzir pentilciclopentanona, seguida de hidrogena\u00e7\u00e3o catal\u00edtica seletiva para produzir pentilciclopentanona, que \u00e9 forte. Pode ser usado em formula\u00e7\u00f5es de fragr\u00e2ncias qu\u00edmicas di\u00e1rias. A dosagem pode ser menor que 20%. A IFRA n\u00e3o tem restri\u00e7\u00f5es.<\/h4>\n

2. Usando o n-hexanal e a ciclopentanona como mat\u00e9rias-primas, primeiro sofre condensa\u00e7\u00e3o e depois hidrogena\u00e7\u00e3o seletiva para obter hexilciclopentanona. A hexilciclopentanona tem uma forte fragr\u00e2ncia de jasmim e uma fragr\u00e2ncia frutada, que pode ser usada em fragr\u00e2ncias de perfume. E em v\u00e1rias outras f\u00f3rmulas de aromas qu\u00edmicos di\u00e1rios, a dosagem est\u00e1 dentro de 5%. A IFRA n\u00e3o tem restri\u00e7\u00f5es.<\/h4>\n

3. O 1-penteno ou 1-hepteno obtido pela pir\u00f3lise da parafina ou pela desidrata\u00e7\u00e3o do \u00e1lcool correspondente \u00e9 usado como mat\u00e9ria-prima e, na presen\u00e7a de per\u00f3xido de di-terc-butilo como iniciador, sofre rea\u00e7\u00e3o de adi\u00e7\u00e3o radical com ciclopentanona para formar 2 -Pentilciclopentanona (ou 2-heptilciclopentanona), que se torna \u03b4-decanolactona (ou \u03b4-laurolactona) ap\u00f3s a expans\u00e3o do anel por oxida\u00e7\u00e3o.<\/h4>\n

4. A rota sint\u00e9tica com ciclopentanona como material de partida tem o maior valor de produ\u00e7\u00e3o industrial. A ciclopentanona primeiro sofre condensa\u00e7\u00e3o de aldol com n-valeralde\u00eddo, o produto da condensa\u00e7\u00e3o torna-se 2-pentilciclopentanona ap\u00f3s desidrata\u00e7\u00e3o e hidrogena\u00e7\u00e3o seletiva e, por fim, torna-se \u03b4-decanolactona ap\u00f3s expans\u00e3o oxidativa do anel.<\/h4>\n

5. A delta-decanolactona \u00e9 usada principalmente em formula\u00e7\u00f5es de aromas comest\u00edveis. Considera-se que ela tem o sabor caracter\u00edstico do creme natural. Antes disso, os perfumistas se limitavam a usar fragr\u00e2ncias monom\u00e9ricas, como diacetil e vanilina, como a principal mat\u00e9ria-prima para a formula\u00e7\u00e3o de aromas de creme por um longo tempo. Entretanto, as pessoas geralmente acham que o aroma de creme preparado \u00e9 muito inferior aos produtos naturais em termos de sabor ou aroma. Somente quando a \u03b4-decanolactona \u00e9 usada, ela pode ter um sabor v\u00edvido de creme, especialmente quando a \u03b4-decanolactona e a \u03b4-laurolactona s\u00e3o usadas juntas como as principais mat\u00e9rias-primas de fragr\u00e2ncia, o sabor e o efeito do sabor de creme formulado ser\u00e3o melhores.<\/h4>\n

6. Pegue a ciclopentanona e o valeralde\u00eddo como mat\u00e9rias-primas, condense para produzir 2-(1-hidroxi)pentilciclopentanona, reaja com malonato de dimetila e, em seguida, hidrolise, descarboxile e esterifique a 160~180\u00b0C. Pode-se obter o \u00e9ster met\u00edlico de diidrojasmonato. O diidrojasmonato de metila \u00e9 uma especiaria aliment\u00edcia cujo uso \u00e9 temporariamente permitido no GB2760-1996 do meu pa\u00eds. Seu aroma \u00e9 melhor do que o do metil jasmonato natural e suas propriedades s\u00e3o relativamente est\u00e1veis.<\/h4>\n

<\/h4>\n

Embalagem e remessa de ciclopentanona<\/strong><\/h2>\n

Embalagem: 200 kg\/tambor<\/h4>\n

Entrega: entrega em 3 a 5 dias \u00fateis<\/h4>\n

 <\/p>\n

Armazenamento de ciclopentanona<\/strong><\/h2>\n

Evitar a luz e o ressecamento.<\/h4>\n

 <\/p>\n

Entre em contato conosco agora!<\/b><\/strong><\/h2>\n

Se precisar de COA, MSDS ou TDS, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato em 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail info@longchangchemical.com<\/a><\/span> durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"

Nome qu\u00edmico: Ciclopentanona<\/h4>\n

N\u00famero CAS: 120-92-3<\/h4>\n

F\u00f3rmula molecular: C5H8O<\/h4>\n

Peso molecular: 84,12<\/h4>\n

Apar\u00eancia: L\u00edquido transparente<\/h4>\n

Ensaio: 99.5%<\/h4>\n

Estrutura molecular:\"image.png\"<\/h4>","protected":false},"featured_media":4330,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[69],"product_tag":[],"class_list":{"0":"post-3528","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-catalysts-chemical-auxiliary-agents","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"\nChina Cyclopentanone Manufacturer \uff06 CAS 120-92-3 Supplier - Longchang chemical Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Longchang Chemical is a leading manufacturer and supplier of Cyclopentanone in China. Buy Cyclopentanone in china. 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