HSN Code 28121100: Sodium Hydroxide (Caustic Soda)

HSN Code 28121100 represents Sodium Hydroxide (Caustic Soda) under GST classification. This code helps businesses identify Sodium Hydroxide (Caustic Soda) correctly for billing, taxation, and trade. With HSN Code 28121100, companies can avoid errors in invoices, simplify compliance, and enable hassle-free import/export of Sodium Hydroxide (Caustic Soda).

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Chapter Number	Chapter Name	Sub Chapter Number	Sub Chapter Name	Description of Goods	CGST (%)	SGST (%)	IGST (%)	CESS (%)
28	Inorganic chemicals, organic or inorganic compounds of precious metals,of rare-earth metals, of radioactive elements or of isotopes	2812	Halides and halide oxides of non-metals	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Carbonyl dichloride (phosgene)	9%	9%	18%	0%

Description of goods

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Carbonyl dichloride (phosgene)

Chapter

28 – Inorganic chemicals, organic or inorganic compounds of precious metals,of rare-earth metals, of radioactive elements or of isotopes

Sub Chapter

2812 – Halides and halide oxides of non-metals

CGST 9%

SGST 9%

IGST 18%

CESS 0%

HSN Code	Description
28121010	Halides and halide oxides of non-metals - chlorides and chloride oxides : phosgene (carbonyl chloride, carbon oxy-chloride, chloroformyl chloride)
28121020	Halides and halide oxides of non-metals - chlorides and chloride oxides : phosphorus trichloride
28121021	Phosphorus trichloride
28121022	Phosphorus pentachloride
28121030	Halides and halide oxides of non-metals - chlorides and chloride oxides : phosphorus oxychloride
28121040	Halides and halide oxides of non-metals - chlorides and chloride oxides : sulphur oxychloride, thionyl chloride
28121041	Sulphur oxychloride
28121042	Sulphur monochloride
28121043	Sulphur dichloride
28121047	Thionyl chloride
28121050	Halides and halide oxides of non-metals - chlorides and chloride oxides : silicon tetrachloride
28121060	Arsenous trichloride
28121090	Halides and halide oxides of non-metals - chlorides and chloride oxides : other
28121200	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Phosphorous oxychloride
28121300	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Phosphorus trichloride
28121400	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Phosphorous pentachloride
28121500	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Sulphur monochloride
28121600	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Sulphur dichloride
28121700	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Thionyl chloride
28121910	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Sulpur oxychloride
28121920	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Silicon tetrachloride
28121930	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Arsenous trichloride
28121990	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Other
28129000	HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Other

HSN Code 28121010

Halides and halide oxides of non-metals - chlorides and chloride oxides : phosgene (carbonyl chloride, carbon oxy-chloride, chloroformyl chloride)

HSN Code 28121020

Halides and halide oxides of non-metals - chlorides and chloride oxides : phosphorus trichloride

HSN Code 28121021

Phosphorus trichloride

HSN Code 28121022

Phosphorus pentachloride

HSN Code 28121030

Halides and halide oxides of non-metals - chlorides and chloride oxides : phosphorus oxychloride

HSN Code 28121040

Halides and halide oxides of non-metals - chlorides and chloride oxides : sulphur oxychloride, thionyl chloride

HSN Code 28121041

Sulphur oxychloride

HSN Code 28121042

Sulphur monochloride

HSN Code 28121043

Sulphur dichloride

HSN Code 28121047

Thionyl chloride

HSN Code 28121050

Halides and halide oxides of non-metals - chlorides and chloride oxides : silicon tetrachloride

HSN Code 28121060

Arsenous trichloride

HSN Code 28121090

Halides and halide oxides of non-metals - chlorides and chloride oxides : other

HSN Code 28121200

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Phosphorous oxychloride

HSN Code 28121300

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Phosphorus trichloride

HSN Code 28121400

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Phosphorous pentachloride

HSN Code 28121500

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Sulphur monochloride

HSN Code 28121600

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Sulphur dichloride

HSN Code 28121700

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Thionyl chloride

HSN Code 28121910

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Sulpur oxychloride

HSN Code 28121920

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Silicon tetrachloride

HSN Code 28121930

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Arsenous trichloride

HSN Code 28121990

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Chlorides and chloride oxides : Other: Other

HSN Code 28129000

HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS : Other

Wrong HSN codes causing GST errors? BUSY auto-applies the correct code & rate on desktop and mobile.

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What products are classified under HSN 28121100 ?

It includes Sodium Hydroxide (Caustic Soda)

Any common misclassification issue with Sodium Hydroxide (Caustic Soda)?

Use the exact HSN and describe the form/grade. For multi‑line invoices, apply the rate per line to avoid wrong tax collection.

Do e‑way bill and e‑invoice apply for Sodium Hydroxide (Caustic Soda)?

e‑Way bill is needed above ₹50,000 consignment value (subject to exemptions). e‑Invoicing is turnover‑based (presently AATO > ₹5 crore) for B2B supplies.

Can we claim ITC on inputs used to trade Sodium Hydroxide (Caustic Soda)?

If your outward supply is taxable, eligible ITC is available subject to general restrictions. For exempt/Nil supplies, reverse credit per Rule 42.

Does packaging or labelling change the GST for Sodium Hydroxide (Caustic Soda)?

For food/agri items, GST can be 5% when not fresh/chilled and sold as pre‑packaged & labelled; otherwise often Nil. For non‑food items, rates depend on the specific sub‑heading.

How much GST applies to Sodium Hydroxide (Caustic Soda)?

Under HSN 28121100, Sodium Hydroxide (Caustic Soda) attracts Varies when sold in taxable form. Describe the exact form on the invoice.

Important Disclaimer

The above does not constitute professional advice or a formal recommendation. We recommend consulting a professional tax consultant before acting on the information contained in this piece of content.

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