As a polar solvent, disinfectant intermediate, and chemical feedstock, 2-propanol (isopropanol, IPA, CAS 67-63-0) is imported into India under tariff item 2905 12 20. Anhydrous commercial material is routinely specified at 99.5 wt% minimum, with water not exceeding 0.1 wt%; the atmospheric-pressure water azeotrope contains approximately 87.7 wt% isopropanol and boils at about 80.4 °C. At 20 °C, density is 0.785–0.787 g/cm³, closed-cup flash point is 12 °C, and autoignition temperature is approximately 399 °C. The trade-remedy measure on Chinese isopropanol is defined as a specific duty per metric tonne, with one verified exporter at USD 82 per tonne and the residual rate at USD 217 per tonne. The following sections trace the statutory method by which those two rates are calculated and selected under Indian anti-dumping law.

India Anti-Dumping Duty on Chinese IPA: USD 82 vs USD 217 per Tonne and How the Rate Is Determined

Under Section 9A of the Customs Tariff Act, 1975, an anti-dumping duty is imposed when the Designated Authority in the Directorate General of Trade Remedies finds that a product imported into India is dumped, that the dumped imports cause material injury to the domestic industry producing the like article, and that the injury is not attributable to other economic factors. For 2-propanol, the subject product is generally defined by chemical identity and physical characteristics—not solely by end use—so industrial, pharmaceutical, and cosmetic grades may fall within the scope unless excluded in the notification.

The core calculation compares normal value with export price at ex-factory level in the exporting country. Normal value is the comparable price, in the ordinary course of trade, of the like product sold for consumption in China. When Chinese domestic sales are below cost over an extended period, are not in ordinary course of trade, or do not allow a fair comparison, normal value is constructed from the cost of production in China plus selling, general and administrative expenses and a reasonable profit margin. Export price is derived from the price paid or payable by the first independent buyer in India. The Designated Authority deducts ocean freight, marine insurance, commission, port handling, inland freight, packing, credit costs, and Chinese indirect taxes to convert the CIF price to an ex-factory basis.

After adjustments for level of trade, credit terms, delivery conditions, physical characteristics, and currency conversion, the dumping margin is the amount by which normal value exceeds export price per tonne. Separately, the Authority computes a non-injurious price for the domestic industry and an injury margin. The injury margin is the difference between the non-injurious price and the landed cost of subject imports, excluding the anti-dumping duty itself. India applies the lesser-duty rule; the final duty is the lower of the dumping margin and the injury margin. The producer-specific rate of USD 82 per tonne therefore results when the lower of the two margins for the verified exporter is 82 dollars per tonne after conversion and rounding. The residual rate of USD 217 per tonne results when exporters without an individually verified margin receive a higher rate based on facts available.

Injury assessment for the domestic industry covers parameters such as production, capacity utilization, domestic sales, inventory, profit before tax, return on capital employed, cash profit, employment, and wages. The non-injurious price is computed for a representative product mix and cost structure, then compared with the landed value of imports. Because the rates in the Chinese isopropanol case are expressed per tonne rather than as an ad valorem percentage, the final notification converts the selected margin into a specific duty in US dollars per metric tonne.

A metric tonne of isopropanol corresponds to approximately 1272 L at density 0.786 kg/L. A rate of USD 82 per tonne is equivalent to about 0.064 USD/L; a rate of USD 217 per tonne is equivalent to about 0.171 USD/L. The specific per-tonne duty does not vary with invoice price, but it is recorded and collected as a fixed addition to the customs assessment for the quantity imported.

An importer of record must classify the product under 2905 12 20 and state the country of origin because the anti-dumping duty applies only to Chinese-origin material. When the shipment is sold from a third-country warehouse but the goods are of Chinese origin, the duty may still apply if rules of origin and customs verification support the assessment. The Customs Tariff Act provides for new shipper reviews and sunset reviews under separate provisions; importers should obtain the original DGTR notification to confirm the exact exporter names, producer codes, and product scope.

Why Does the Residual Rate Sit at USD 217 While One Exporter Faces USD 82?

The spread between USD 82 and USD 217 per tonne is a procedural and commercial-accounting result rather than a difference in chemical purity. Exporters that submit a complete questionnaire, provide transaction-level domestic and export datasets, and allow on-site verification are eligible for an individual margin. Unverified or non-cooperating producers are assigned a residual duty based on facts available, which in practice is often the highest margin supported by the record. This prevents circumvention of the measure by shifting export volumes from a known producer to an unexamined producer in the same country.

Public DGTR summaries do not always disclose the complete company-specific normal-value, export-price, and non-injurious-price arithmetic; therefore the underlying margins for the USD 82 and USD 217 rates are assessed here through the statutory sequence rather than from confidential cost lines. The differences may include production cost structures, tolling arrangements, packaging, inland freight, export commission, credit terms, and the manner in which domestic sales are classified in the Chinese market. For 2-propanol, integration with upstream propylene or acetone can shift cost of production because both process routes have different fixed and variable cost exposure.

Producer-specific treatment is also balanced against circumvention risk. Without a residual rate, a low-margin exporter could expand shipments while higher-margin exporters cease trading; the residual rate is intended to maintain the protective effect of the measure across changing supplier identities. The difference between USD 82 and USD 217 per tonne therefore reflects not only accounting differences but also the enforcement requirement that the duty apply to all untested sources in the subject country.

Production Route Variables, Azeotrope Drying, and Purity Limits

Direct hydration of propylene over a solid acidic catalyst is carried out at elevated temperature and pressure, commonly in the range of 200–300 °C and 2–3 MPa. Single-pass conversion is deliberately limited to control selectivity; unreacted propylene is recycled, and the crude is a dilute aqueous isopropanol stream requiring multiple distillation steps. Byproducts such as diisopropyl ether, propylene oligomers, and oxidation products are removed by fractionation and hydrotreating depending on the licensor configuration. The alternative acetone hydrogenation route operates at approximately 100–150 °C and 20–30 bar over copper chromite or supported nickel catalysts; bulk capacity economics depend on acetone feedstock cost and hydrogen availability.

Because atmospheric distillation cannot exceed the azeotrope near 87.7 wt%, anhydrous grades at 99.5 wt% or higher require azeotropic or extractive distillation, pressure-swing systems, molecular sieves, or membrane drying. Water content is the critical downstream specification because residual moisture participates in esterifications, isocyanate-cured coatings, and water-sensitive chemical syntheses. Incoming inspection for bulk industrial 2-propanol typically uses ASTM D4052 for density, ASTM D7704 for water by Karl Fischer titration, and ASTM D1613 for acidity in volatile solvents. Gas chromatography with flame ionization detection is used for assay and organic impurities; the USP monograph provides compendial limits for pharmaceutical use.

Propylene hydration units are often integrated with refinery propylene recovery, so utilities and steam cracking feedstock costs determine variable cost. Acetone hydrogenation units are typically separate hydrogenation plants and are sensitive to acetone market premiums; the two routes make the cost of production heterogeneous across Chinese producers, which is one reason producer-specific anti-dumping margins can diverge materially.

When Isopropyl Alcohol Must Meet USP, Electronic, or Cosmetic Specifications

When isopropyl alcohol is routed into pharmaceutical, cosmetic, or electronic-grade applications, the specification shifts from bulk chemical purity to controlled impurity identity and concentration. The USP monograph for isopropyl alcohol sets an assay span from 99.0% to 100.5% by weight, with separate limits for water, residue on evaporation, and UV-absorbing or chromatographic impurities. Electronic-grade material is specified at 99.8 wt% minimum or higher, with trace metal and anion levels controlled in the low ppb range because residual ions can compromise wafer cleaning baths. Cosmetic and sanitizer blending operations typically start with 99.8% or 99.9% anhydrous material and dilute with water; the WHO-recommended isopropanol-based rub formulation uses 751.5 mL of 99.8% IPA, 14.5 mL glycerol, 41.7 mL of 3% hydrogen peroxide, and sterile water to a final volume of 1000 mL.

Isopropanol is hygroscopic. Open-vessel handling at relative humidity above 60% can progressively raise water content, so closed-loop dispensing and nitrogen-blanketed storage are used where moisture-sensitive downstream operations are involved. The solvent is miscible with water and common organic solvents, but it is incompatible with strong oxidizing agents, strong acids, and peroxides; storage segregation follows flammable-liquid recommendations. In process equipment, stainless steel 316L is preferred for high-purity service, while carbon steel may be acceptable for dry industrial grades if water separation and corrosion monitoring are controlled; published data for specific long-term corrosion rates in Chinese-origin IPA with trace acidity are limited.

For sanitizer-grade transfer, in-line static mixers are used after dilution to avoid local water pockets; the final alcohol concentration is checked by density or near-infrared spectroscopy rather than by simple volumetric assumption because blending volumes are not strictly additive. This proves especially relevant when the input is 99.5 wt% versus 99.9 wt% because the volumetric make-up differs for a target 75% v/v isopropanol solution.

In a production-scale Indian pharmaceutical sanitizer line, bulk 2-propanol is unloaded from ISO tank containers into 316L stainless steel storage tanks fitted with pressure-vacuum conservation vents and nitrogen blanketing. Transfer pumps are mechanically sealed centrifugal units, and area classification for motors and instrumentation follows the vapor-pressure and flash-point profile in the safety data sheet. Bonding and grounding are specified before unloading because the liquid has a low flash point; open-top charging is avoided to reduce the risk of flammable vapor accumulation. Filling lines use conductive or static-dissipative hoses, and product filters are specified for 1 µm or finer where particulate matter must be controlled in packaging.