Product Overview
D-Limonene Technical Grade is a naturally derived terpene solvent with strong solvency for oils, greases, adhesives, and resins. It is a clear, colorless, mobile liquid with a distinct citrus odor — immediately recognizable when you crack the cap on a fresh drum. As a technical grade product, it is formulated for industrial process work where high analytical purity is unnecessary but reliable solvent performance is expected.
This product moves through our Taylor, TX warehouse steadily. Buyers are typically maintenance supervisors sourcing a parts-washing solvent, coatings formulators replacing petroleum-based solvents, or extraction operators working with plant-derived materials. If your process calls for a terpene hydrocarbon solvent that dissolves non-polar residues without the toxicity profile of chlorinated alternatives, this is the product.
Why This Grade
Technical grade D-Limonene is the workhorse tier. It delivers the solvency and evaporation profile you need for cleaning, degreasing, and formulation work at a lower cost point than food or fragrance grades. The trade-off is straightforward: technical grade carries minor impurities that do not affect performance in industrial solvent applications but would matter in flavor, fragrance, or pharmaceutical contexts.
Choose technical grade when your end product is not consumed, inhaled at close range, or applied to skin — that covers parts washing, ink removal, adhesive stripping, concrete degreasing, paint thinning, and most extraction work. If your application requires tighter purity specifications, request a COA for this lot and compare against your process tolerances.
Chemical Profile
D-Limonene (CAS 5989-27-5) has the molecular formula C10H16 and a molecular weight of 136.23. It is a liquid at room temperature — clear, colorless, and mobile, with a pleasant citrus odor. Its density is 0.8411 at 68 °F, making it less dense than water; it will float on an aqueous layer. Solubility in water is very low, less than 1 mg/mL at 67.1 °F, so it behaves as a distinct organic phase in aqueous systems. Vapor pressure is 1 mmHg at 57 °F, rising to 5 mmHg at 104.7 °F and 10 mmHg at 128.8 °F — moderate volatility that provides good evaporation in cleaning applications without the flash-off speed of lighter solvents like acetone.
Industrial Applications
D-Limonene's value is its ability to dissolve a wide range of non-polar substances while offering a more favorable health and environmental profile than many petroleum solvents. Here are the primary industrial uses:
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Degreasing and Parts Cleaning — D-Limonene cuts through petroleum greases, lubricants, and machining oils on metal parts. It is used in dip tanks, spray washers, and manual wipe-down operations. Because it evaporates cleanly and leaves minimal residue, it works well for pre-painting or pre-coating surface preparation.
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Solvent for Paints and Coatings — Formulators use D-Limonene as a solvent or co-solvent in coatings, varnishes, and ink systems. It dissolves many resins effectively and can replace mineral spirits or toluene in formulations where a lower-toxicity solvent is preferred.
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Cleaning Products — Industrial and institutional cleaning formulations use D-Limonene to dissolve oils, waxes, and adhesive residues from hard surfaces. Its citrus odor is a practical advantage in occupied facilities where solvent odor is a concern.
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Extraction Solvent — D-Limonene serves as a solvent for extracting essential oils and active compounds from plant materials. Its selectivity for terpenes and other non-polar compounds makes it effective in botanical extraction processes.
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Chemical Intermediate — D-Limonene is a feedstock for synthesizing other terpene derivatives. It serves as a starting material in chemical manufacturing processes that produce downstream specialty chemicals.
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Fragrance and Aroma Applications — At technical grade, D-Limonene is incorporated into industrial fragrance blends, air freshener formulations, and odor-masking products where its citrus character is the functional ingredient.
Handling & Storage
D-Limonene carries a signal word of Danger (per the product's GHS classification). The hazard statements you need to know: it is a flammable liquid and vapor (H226), may be fatal if swallowed and enters airways (H304), causes skin irritation (H315), may cause an allergic skin reaction (H317), and is very toxic to aquatic life with long-lasting effects (H410) (per the product's GHS classification).
Wear chemical-resistant gloves (nitrile recommended) and splash-proof safety goggles when handling. In poorly ventilated areas or during prolonged exposure, use respiratory protection rated for organic vapors. Avoid skin contact — repeated exposure can cause sensitization in some individuals.
Store in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and open flame. Keep containers tightly closed when not in use. Use HDPE or glass containers; D-Limonene can soften or degrade some plastics and rubber seals over time. Keep away from strong oxidizing agents. Do not allow releases to drains, waterways, or soil — the aquatic toxicity profile demands spill containment and proper disposal.
Hazmat & Shipping
D-Limonene ships as a regulated hazardous material. Every outbound shipment from our Taylor, TX facility is packaged and labeled to DOT standards:
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UN Number: UN2319 (per 49 CFR 172.101)
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Hazard Class: 3 — Flammable Liquid (per 49 CFR 172.101)
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Packing Group: III (per 49 CFR 172.101)
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Proper Shipping Name: Terpene hydrocarbons, N.O.S. (per 49 CFR 172.101)
Packing Group III means this is the lowest-severity tier within Class 3 flammable liquids, but it still requires full hazmat documentation, diamond placarding on bulk shipments, and compliant packaging at every size. We handle that end to end — you receive a properly marked, labeled, and documented package.
Documentation
A Safety Data Sheet ships with every order, available in English, Spanish, French, and Japanese. A lot-specific Certificate of Analysis is available on request — contact us before or after your order to obtain the COA matched to your shipment lot. A Technical Data Sheet is also available for process engineering reference.
Why Buy from Alliance Chemical
We ship D-Limonene daily from our warehouse in Taylor, TX. Every hazmat package is built, marked, and documented by our operations team under the review of Andre Taki, DOT Hazmat Specialist. We are a chemical distributor — stocking, handling, and shipping hazardous materials is what we do, and we do it every day. From a single quart for bench testing to a 55-gallon drum for production, your order ships DOT-compliant with full documentation. No third-party drop shipping. No guesswork on hazmat compliance. Alliance Chemical does not charge hazmat handling fees.
Related Reading
The 2026 chemistry Nobel (Kagan and Soai, 7 October 2026) rewarded reactions that make one mirror image of a molecule. The D in D-limonene is a mirror-image label: citrus makes (R)-limonene above 99.9 percent ee. A 2021 J. Chem. Educ. study found half of testers called technical-grade (R)-limonene orange but only 13 percent said so of analytical grade: the orange note rides on the impurities. The Chemistry Nobel Went to Mirror Molecules. Textbooks Still Get Limonene Wrong.
