What is HS-4 2918 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-4 · Heading
2918 — Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
Chapter 29: Organic chemicals
Plain-language overview
Use HS-4 2918 when importing or exporting carboxylic acids that have additional oxygen functions, such as citric acid or salicylic acid. For instance, if you are shipping citric acid in bulk for food production, this heading applies.
When deciding among the HS-6 lines, consider the specific type of acid. For example, HS-6 291814 covers citric acid, while HS-6 291811 is for lactic acid. If your product is a derivative of citric acid, like its esters, you would look at HS-6 291815 instead.
Another distinction lies in the presence of phenolic or aldehyde functions. If your product is salicylic acid, use HS-6 291821. However, if it’s a derivative like o-acetylsalicylic acid, you should refer to HS-6 291822.
Keywords & topics
Useful terms traders and brokers use for this HS-4 heading.
carboxylic acids · citric acid · salicylic acid · lactic acid · tartaric acid · gluconic acid · acids with alcohol function · phenolic acids · acids with additional oxygen function · acids and their derivatives · HS-6 codes · importing acids · exporting acids · chemical classification · acid derivatives · bulk chemical shipments
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Citric acid (HS-6 291814)
- Lactic acid and its salts (HS-6 291811)
- Salicylic acid (HS-6 291821)
- Gluconic acid and its derivatives (HS-6 291816)
- 2,4,5-trichlorophenoxyacetic acid (HS-6 291891)
- Tartaric acid (HS-6 291812)
- Chlorobenzilate (HS-6 291818)
Common questions
Frequent classification questions with short practical guidance.
How to classify citric acid for import?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What are the HS-6 codes for carboxylic acids?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Is salicylic acid classified under HS-4 2918?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the differences between lactic and tartaric acid classifications?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to determine the correct HS code for gluconic acid?
Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.
Related topics
Common real-world topics that come up during code comparison.
how to classify carboxylic acids for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
differences between salicylic acid and its derivatives
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
importing citric acid and its esters
Check the exact product specs and destination-country tariff notes before finalizing the code.
HS-6 codes for organic acids
Use this topic to narrow your shortlist, then validate the final code against legal wording.
bulk shipments of lactic acid
Use this topic to narrow your shortlist, then validate the final code against legal wording.
understanding acid classifications in HS
Use this topic to narrow your shortlist, then validate the final code against legal wording.
navigating HS codes for chemical imports
Check the exact product specs and destination-country tariff notes before finalizing the code.
choosing the right HS-6 code for acids
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products fall under HS-4 2918?
- HS-4 2918 covers carboxylic acids with additional oxygen functions, including citric acid, salicylic acid, and their derivatives.
- How do I choose between HS-6 codes under 2918?
- Identify the specific acid or derivative you are dealing with. For example, citric acid is classified under HS-6 291814, while lactic acid falls under HS-6 291811.
- Are there any specific notes for importing these acids?
- Yes, ensure you check for any import restrictions or regulations specific to the acid you are importing, as some may have specific safety or environmental regulations.
- What if my product is a derivative of these acids?
- You should use the HS-6 code that corresponds to the specific derivative. For instance, esters of citric acid would be classified under HS-6 291815.
- Can I use HS-4 2918 for all carboxylic acids?
- No, HS-4 2918 specifically applies to carboxylic acids with additional oxygen functions. Other types of acids may fall under different headings.
- What is the significance of the additional oxygen function?
- The additional oxygen function can affect the chemical properties and applications of the acid, which is why it is important for classification.
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HS-6 subheadings (16)
- 291811Acids; carboxylic acids, (with alcohol function but without other oxygen function), lactic acid, its salts and esters
- 291812Acids; carboxylic acids, (with alcohol function but without other oxygen function), tartaric acid
- 291813Acids; carboxylic acids, (with alcohol function but without other oxygen function); salts and esters of tartaric acid
- 291814Acids; carboxylic acids, (with alcohol function but without other oxygen function), citric acid
- 291815Acids; carboxylic acids, (with alcohol function but without other oxygen function), salts and esters of citric acid
- 291816Acids; carboxylic acids, (with alcohol function but without other oxygen function), gluconic acid, its salts and esters
- 291817Acids; carboxylic acids, (with alcohol function but without other oxygen function), 2,2-Diphenyl-2-hydroxyacetic acid (benzilic acid)
- 291818Acids; carboxylic acids, (with alcohol function but without other oxygen function), chlorobenzilate (ISO)
- 291819Acids; carboxylic acids, (with alcohol function but without other oxygen function), other than lactic, tartaric, citric, and gluconic acids and their salts and esters
- 291821Acids; carboxylic acids, (with phenol function but without other oxygen function), salicylic acid and its salts
- 291822Acids; carboxylic acids, (with phenol function but without other oxygen function), o-acetylsalicylic acid, its salts and esters
- 291823Acids; carboxylic acids, (with phenol function but without other oxygen function), other esters of salicylic acid and its salts n.e.c. in item no. 2918.2
- 291829Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2
- 291830Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives
- 291891Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters
- 291899Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives; other than 2,4,5-T (ISO)