Sodium ferrocyanide

Sodium ferrocyanide, complex cyanide salt

CBIC CLEARANCE

HSN 2837 20 40 (Sodium ferrocyanide) is subject to mandatory additional qualifier declarations at the bill of entry under Central Board of Indirect Taxes and Customs (CBIC) Circular 23/2023-Cus dated 30-09-2023. Importers must furnish the qualifiers stipulated in Paragraphs 4.1 and 4.2 of that Circular for all commodities under Chapter 28, operative from 15 October 2023.

What this is

HSN code

2837 20 40

Chapter

28 · Inorganic chemicals; organic or inorganic compounds of precious metals

Primary regulator

CBIC · Mandatory Chapter 28 qualifiers, CBIC Circular 23/2023-Cus

Customs documentation

Chapter 28 qualifiers from CBIC
Import declaration to CBIC

Compliance steps

1
File the bill of entry with the mandatory additional qualifiers for Chapter 28 commodities as specified in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus. This obligation is operative from 15 October 2023 and applies to all consignments of sodium ferrocyanide regardless of quantity or end-use.
CBIC Circular 23/2023-Cus dated 30-09-2023, Paragraphs 4.1 and 4.2
2
Ensure the qualifier declarations are correctly populated in the import declaration before submission; incomplete or absent qualifiers will result in the bill of entry being held by the proper officer and may cause consignment detention and demurrage.
CBIC Circular 23/2023-Cus dated 30-09-2023

A word of counsel

The most common error on this tariff line is filing the bill of entry without the Chapter 28 mandatory qualifiers, treating sodium ferrocyanide as a routine inorganic chemical that clears on description alone. CBIC Circular 23/2023-Cus applies uniformly across Chapter 28 from 15 October 2023; an incomplete qualifier field is grounds for the proper officer to withhold out-of-charge, triggering detention and accumulating ground rent.

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Frequently asked

Does HSN 2837 20 40 require BIS certification?

No, sodium ferrocyanide is not covered by any BIS Quality Control Order. Import is governed by the mandatory additional qualifier declaration regime for Chapter 28 commodities under CBIC Circular 23/2023-Cus dated 30-09-2023.

What specific qualifiers must be declared for Chapter 28 imports under CBIC Circular 23/2023-Cus?

The qualifiers are those stipulated in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus; the exact field specifications are set out in that Circular and must be confirmed against the current ICES bill-of-entry format before filing.

Does the Chapter 28 qualifier obligation apply to all import quantities of sodium ferrocyanide?

Yes, CBIC Circular 23/2023-Cus imposes the qualifier requirement on all import declarations for Chapter 28 commodities from 15 October 2023 without any de-minimis or end-use exemption.

Last verified against gazette notifications: 2026-05-16. Source: CBIC / Indian Customs CUSDATA.