{"title":"Solvents and Additives","description":"\u003cp\u003eSolvents, co-solvents and technical additives for preparing dilutions, working solutions and perfume compositions.\u003c\/p\u003e\u003cp\u003eThese materials do not all perform the same function. DPG and TEC are mainly used as solvents or co-solvents, while BHT is a technical antioxidant used to help protect oxidation-sensitive raw materials and compositions.\u003c\/p\u003e\u003ch2\u003eSolvents for dilutions and working solutions\u003c\/h2\u003e\u003cp\u003eDPG (Dipropylene Glycol) is one of the most widely used solvents in perfumery for preparing dilutions and supporting non-alcoholic or mixed formulas. TEC (Triethyl Citrate) is a low-volatility co-solvent useful when a less glycolic carrier is preferred and is compatible with many odorant materials.\u003c\/p\u003e\u003ch2\u003eTechnical additives for formulation\u003c\/h2\u003e\u003cp\u003eTechnical additives have different functions from solvents. BHT, for example, is used as an antioxidant rather than as a primary odorant ingredient. Selection and dosage depend on the material being treated and on the final formula.\u003c\/p\u003e\u003cp\u003eIndividual product pages provide function, physical state, use and technical characteristics relevant to preparation and formula stability.\u003c\/p\u003e\u003cp\u003eTo distinguish the role of solvents from that of odorant materials, see the \u003ca href=\"\/en\/blogs\/notizie\/materie-prime-per-profumi-guida-completa\"\u003e\u003cstrong\u003eguide to raw materials for making perfume\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eTo return to olfactory categories and perfume bases, visit the \u003ca href=\"\/en\/\"\u003e\u003cstrong\u003eprofessional perfume raw materials catalogue\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"dpg","title":"DPG – DIPROPYLENE GLYCOL – technical solvent for dilutions, working solutions and non-alcoholic or mixed fragrance compositions","description":"\u003ch2\u003eDPG – DIPROPYLENE GLYCOL\u003c\/h2\u003e\u003cp\u003eDIPROPYLENE GLYCOL, or DPG, is one of the technical solvents most widely used in a perfumer’s laboratory. It has low volatility, is almost odorless and is slightly viscous; it is chosen mainly for preparing working dilutions and making the dosing of very powerful, crystalline or concentrated raw materials more precise.\u003c\/p\u003e\u003ch3\u003eHow it works in formula\u003c\/h3\u003e\u003cp\u003eDPG facilitates the preparation of 10%, 1% or other working solutions and makes it possible to evaluate with greater control materials that are too intense when neat or difficult to weigh in very small quantities.\u003c\/p\u003e\u003cp\u003eCompared with ethanol, it evaporates much more slowly. For this reason it can make the opening softer and less immediate; at high levels, however, it can reduce brightness and slow the diffusion of the composition.\u003c\/p\u003e\u003ch3\u003eDPG or TEC?\u003c\/h3\u003e\u003cp\u003eDPG is often the most practical choice for everyday laboratory work, especially for technical dilutions and raw-material study. TEC is generally preferred when a less glycol-like, low-odor and low-volatility carrier is needed for concentrates, roll-ons and non-aqueous systems.\u003c\/p\u003e\u003ch3\u003eDPG and water\u003c\/h3\u003e\u003cp\u003eDPG is miscible with water, but this does not mean that it automatically makes essential oils, absolutes, resins or perfume bases water-soluble. Compatibility must be verified in aqueous systems and, when necessary, a specific solubilizer should be used.\u003c\/p\u003e\u003ch3\u003eWhen to choose it\u003c\/h3\u003e\u003cp\u003eIt is particularly suitable when precise working solutions, stable dilutions and a versatile technical solvent are needed for powerful, crystalline, viscous or otherwise difficult-to-dose materials.\u003c\/p\u003e\u003cp\u003ePhysicochemical parameters, CAS, storage conditions and safety information are provided in the Technical Data section and SDS.\u003c\/p\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cp\u003eThis product is packed to order; the container may vary depending on the size selected and the characteristics of the raw material.\u003c\/p\u003e","brand":"La Profumiera di Venezia by Irina Vaganova","offers":[{"title":"50 g","offer_id":53887306727751,"sku":"dpg-50g","price":15.0,"currency_code":"EUR","in_stock":true},{"title":"100 g","offer_id":53887306760519,"sku":"dpg-100g","price":21.0,"currency_code":"EUR","in_stock":true},{"title":"500 g","offer_id":53887323636039,"sku":"dpg-500g","price":39.0,"currency_code":"EUR","in_stock":true},{"title":"1 kg","offer_id":53887323668807,"sku":"dpg-1kg","price":55.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/9397\/5111\/files\/DPG_baa936ef-790c-4e30-b82f-954b9f57740e.png?v=1778409025"},{"product_id":"tec-triethyl-citrate","title":"TEC – TRIETHYL CITRATE – technical solvent and low-volatility co-solvent for fragrance compositions","description":"\u003ch2\u003eTEC – TRIETHYL CITRATE\u003c\/h2\u003e\u003cp\u003eTRIETHYL CITRATE, or TEC, is a low-volatility technical solvent and co-solvent with a very discreet odor of its own. In formula it is not chosen to add an olfactory note, but to manage the solubility, fluidity and evaporation rate of certain materials and of the composition as a whole.\u003c\/p\u003e\u003ch3\u003eHow it works in formula\u003c\/h3\u003e\u003cp\u003eTEC can be used to prepare working solutions, concentrates, bases and non-aqueous systems. Compared with ethanol it evaporates much more slowly, so it can soften an opening that feels too abrupt and make evaporation more progressive.\u003c\/p\u003e\u003cp\u003eIt is particularly useful when a low-odor, low-volatility carrier is needed, or when working with certain crystalline, viscous or otherwise difficult-to-dose materials.\u003c\/p\u003e\u003ch3\u003eTEC or DPG?\u003c\/h3\u003e\u003cp\u003eDPG has a more typically glycol-like character and is often practical as a laboratory solvent for working solutions and functional perfumery. TEC is generally chosen when a low-odor, low-volatility carrier is desired for concentrates, roll-ons and non-aqueous systems.\u003c\/p\u003e\u003ch3\u003eTEC or BENZYL BENZOATE?\u003c\/h3\u003e\u003cp\u003eBENZYL BENZOATE offers useful solvent capacity for a number of heavy and resinous materials, but it is also a true component of the formula with its own olfactory and regulatory profile. TEC is perceived mainly as a more neutral technical support.\u003c\/p\u003e\u003ch3\u003eTo consider\u003c\/h3\u003e\u003cp\u003eTEC is not a universal solubilizer and does not guarantee transparency in aqueous systems containing essential oils, absolutes, resins or bases. At high levels it can slow evaporation and reduce the brightness of a composition, so it should always be evaluated in the complete formula.\u003c\/p\u003e\u003cp\u003ePhysicochemical parameters, CAS, storage conditions and safety information are provided in the Technical Data section and SDS.\u003c\/p\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cp\u003eThis product is packed to order; the container may vary depending on the size selected and the characteristics of the raw material.\u003c\/p\u003e","brand":"La Profumiera di Venezia by Irina Vaganova","offers":[{"title":"50 g","offer_id":53887514575175,"sku":"tec-50g","price":15.0,"currency_code":"EUR","in_stock":true},{"title":"100 g","offer_id":53887514607943,"sku":"tec-100g","price":21.0,"currency_code":"EUR","in_stock":true},{"title":"500 g","offer_id":53887514640711,"sku":"tec-500g","price":39.0,"currency_code":"EUR","in_stock":true},{"title":"1 kg","offer_id":53887514673479,"sku":"tec-1kg","price":55.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/9397\/5111\/files\/TEC.png?v=1778411577"},{"product_id":"bht","title":"BHT – BUTYL HYDROXYTOLUENE – technical antioxidant for protecting raw materials and fragrance compositions from oxidation","description":"\u003ch2\u003eBHT — BUTYL HYDROXYTOLUENE\u003c\/h2\u003e\u003cp\u003eBHT is a technical antioxidant used to help slow the oxidation of raw materials and fragrance compositions that are sensitive to air, light and time. It is not used to build an olfactory note: its function is to help protect material stability.\u003c\/p\u003e\u003ch3\u003eWhen it is useful\u003c\/h3\u003e\u003cp\u003eIt is particularly useful when working with citrus materials, essential oils, terpenes, aldehydes and other raw materials that oxidize easily. It can be added to a sensitive raw material, a base or a fragrance concentrate, after verifying the actual need and compatibility with the formula.\u003c\/p\u003e\u003ch3\u003eWhat it does — and what it does not do\u003c\/h3\u003e\u003cp\u003eBHT can help slow oxidation and therefore preserve odor, color and perceived quality for longer. However, it cannot restore a raw material that has already oxidized, and it does not replace an antimicrobial preservative: it acts against oxidation, not against bacteria, yeasts or molds.\u003c\/p\u003e\u003ch3\u003eHow to work with it\u003c\/h3\u003e\u003cp\u003eIt is used at very low levels and must be completely solubilized in the chosen system. The dosage should not be applied automatically: it should be assessed according to the oxidative sensitivity of the formula and confirmed through comparative trials and stability testing.\u003c\/p\u003e\u003ch3\u003eWhen to choose it\u003c\/h3\u003e\u003cp\u003eIt is particularly appropriate when a formula contains a significant proportion of natural materials or molecules that are sensitive to oxidation and the goal is to improve stability over time without changing the olfactory profile.\u003c\/p\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cp\u003eThis product is packed to order; the container may vary depending on the size selected and the characteristics of the raw material.\u003c\/p\u003e","brand":"La Profumiera di Venezia by Irina Vaganova","offers":[{"title":"10 g","offer_id":53888637239623,"sku":"bht-10g","price":7.0,"currency_code":"EUR","in_stock":true},{"title":"50 g","offer_id":53888332366151,"sku":"bht-50g","price":17.0,"currency_code":"EUR","in_stock":true},{"title":"100 g","offer_id":53888332398919,"sku":"bht-100g","price":23.0,"currency_code":"EUR","in_stock":true},{"title":"500 g","offer_id":53888332431687,"sku":"bht-500g","price":42.0,"currency_code":"EUR","in_stock":true},{"title":"1 kg","offer_id":53888332464455,"sku":"bht-1kg","price":58.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/9397\/5111\/files\/BHT.png?v=1778418936"}],"url":"https:\/\/profumieradivenezia.com\/en\/collections\/solventi-e-additivi.oembed","provider":"La Profumiera di Venezia by Irina Vaganova","version":"1.0","type":"link"}