SITCSection 6

Slaked Lime

Name: Slaked Lime (SITC 66112) -- U.S. Import Data
Creator: U.S. Census Bureau
License: https://www.census.gov/about/policies/open-gov/open-data.html

$2.1MU.S. imports · April 2026SITC 66112

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SITCSection 6

Slaked Lime

$2.1MU.S. imports · April 2026SITC 66112

U.S. imports of slaked lime (SITC 66112) totaled $2.1M in April 2026, traded with 19 countries.

Importers of Slaked Lime paid $49K in duties in April 2026 — an effective duty rate of 10% on $464K in dutiable value, based on actual customs collections rather than the published tariff schedule. Slaked Lime imports of $2.1M in April 2026 ran 31% above the year-to-date monthly average of $1.6M.

Last updated: April 2026 data

Calcium hydroxide — commercially known as slaked or hydrated lime — is formed by reacting quicklime with water and serves as a workhorse alkali across water and wastewater treatment, paper manufacturing, food processing, and construction applications. Its relatively lower reactivity compared to quicklime makes it easier to handle and store, though moisture control during transit remains important to prevent premature carbonation. Purity grade and particle size distribution are the primary specification variables that determine suitability for food-contact versus industrial uses.

AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.

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Frequently Asked Questions

Does food-grade slaked lime require any special import clearance beyond standard customs entry?

When slaked lime is imported for food-contact applications — such as nixtamalization in corn processing — it may be subject to FDA review as a food additive or processing aid. Importers should ensure the product meets applicable food-grade purity standards (e.g., FCC grade) and that the supplier's documentation reflects the intended food-contact use.

What specification differences distinguish industrial-grade from food-grade hydrated lime?

Food-grade calcium hydroxide must meet strict limits on heavy metals (lead, arsenic, mercury) and other impurities as defined by the Food Chemicals Codex (FCC). Industrial grades may have broader tolerances for these contaminants. Importers should request a Certificate of Analysis confirming compliance with the applicable grade standard for their end use.

U.S. imports of slaked lime (SITC 66112) totaled $2.1M in April 2026, traded with 19 countries.

Importers of Slaked Lime paid $49K in duties in April 2026 — an effective duty rate of 10% on $464K in dutiable value, based on actual customs collections rather than the published tariff schedule. Slaked Lime imports of $2.1M in April 2026 ran 31% above the year-to-date monthly average of $1.6M.

Last updated: April 2026 data

Calcium hydroxide — commercially known as slaked or hydrated lime — is formed by reacting quicklime with water and serves as a workhorse alkali across water and wastewater treatment, paper manufacturing, food processing, and construction applications. Its relatively lower reactivity compared to quicklime makes it easier to handle and store, though moisture control during transit remains important to prevent premature carbonation. Purity grade and particle size distribution are the primary specification variables that determine suitability for food-contact versus industrial uses.

AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.

Imports: $2.1M; from 19 countries
Exports: $701K
Trade balance: Deficit of $1.4M; net importer

YTD $6.4M (April 2026) · 319 shipments/mo

Top trading partners

View all 19

Country	Imports	Exports	Balance
CANADA	$795K	$504K	-$291K
MEXICO	$801K	$30K	-$771K
DOMINICAN REPUBLIC	$130K	--	-$130K
BELGIUM	$77K	--	-$77K
ITALY	$76K	--	-$76K

CANADA

Imports$795K

Exports$504K

Balance-$291K

MEXICO

Imports$801K

Exports$30K

Balance-$771K

DOMINICAN REPUBLIC

Imports$130K

Exports--

Balance-$130K

BELGIUM

Imports$77K

Exports--

Balance-$77K

ITALY

Imports$76K

Exports--

Balance-$76K

Import Trend (12 months)

Monthly import values over time

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Frequently Asked Questions

Does food-grade slaked lime require any special import clearance beyond standard customs entry?

When slaked lime is imported for food-contact applications — such as nixtamalization in corn processing — it may be subject to FDA review as a food additive or processing aid. Importers should ensure the product meets applicable food-grade purity standards (e.g., FCC grade) and that the supplier's documentation reflects the intended food-contact use.

What specification differences distinguish industrial-grade from food-grade hydrated lime?

Food-grade calcium hydroxide must meet strict limits on heavy metals (lead, arsenic, mercury) and other impurities as defined by the Food Chemicals Codex (FCC). Industrial grades may have broader tolerances for these contaminants. Importers should request a Certificate of Analysis confirming compliance with the applicable grade standard for their end use.