Is ferric chloride dangerous?

Yes, it is corrosive and can cause burns. It should be handled with appropriate personal protective equipment (PPE).

What is the difference between ferric and ferrous chloride?

Ferric chloride contains iron in the +3 oxidation state (Fe³⁺), while ferrous chloride contains iron in the +2 state (Fe²⁺).

Can ferric chloride be found at home?

It is highly unlikely. It is an industrial and laboratory chemical, not a household product.

What does ferric chloride solution look like?

A concentrated aqueous solution is typically yellow to dark orange-brown in colour.

ferric chloride

Low

UK/ˌfer.ɪk ˈklɔː.raɪd/US/ˌfer.ɪk ˈklɔːr.aɪd/

Technical, Scientific

My Flashcards

Definition

Meaning

A chemical compound with the formula FeCl₃, used as a coagulant, etchant, and industrial catalyst.

A dark brown or orange hygroscopic solid, often used in water treatment, sewage processing, metal surface treatment, and as a mordant in dyeing.

Linguistics

Semantic Notes

The term denotes a specific inorganic salt and is not used figuratively. It is almost exclusively encountered in chemical, industrial, and laboratory contexts.

Dialectal Variation

British vs American Usage

Differences

No significant lexical or spelling differences exist for this precise chemical term.

Connotations

Identical technical connotations in both regions.

Frequency

Equally low-frequency in both British and American English, limited to technical domains.

Vocabulary

Collocations

strong

anhydrous ferric chlorideaqueous ferric chlorideferric chloride solution

medium

add ferric chlorideuse ferric chloridedissolve ferric chloride

weak

concentrated ferric chloridesolid ferric chloridepurchase ferric chloride

Grammar

Valency Patterns

be treated with ferric chloridethe reaction of ferric chloride with Xferric chloride is added to

Vocabulary

Synonyms

Strong

FeCl₃

Neutral

iron(III) chloride

Weak

iron chloride (imprecise)

Vocabulary

Antonyms

ferrous chloride (FeCl₂)

Phrases

Idioms & Phrases

“None”

Usage

Context Usage

Business

In business contexts (e.g., chemical supply), it refers to a product for sale.

Academic

Used in chemistry textbooks and research papers to describe reactions or properties.

Everyday

Virtually never used in everyday conversation.

Technical

Primary context: water treatment plant operations, PCB manufacturing, laboratory synthesis, and analytical chemistry.

Examples

By CEFR Level

Ferric chloride is a chemical.

The lab uses ferric chloride in experiments.

Ferric chloride solution is an effective coagulant for water treatment.

The anhydrous ferric chloride catalyzed the Friedel-Crafts alkylation reaction efficiently.

Learning

Memory Aids

Mnemonic

Think FERRIC (like Ferris wheel, made of IRON) + CHLORIDE (like chlorine bleach). It's the iron + chlorine compound.

Conceptual Metaphor

None applicable.

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

Direct translation 'феррический хлорид' is incorrect. The standard Russian term is 'хлорид железа(III)' or 'треххлористое железо'.

Common Mistakes

Misspelling as 'ferric cloride' or 'ferrick chloride'. Confusing it with 'ferrous chloride' (FeCl₂).

Practice

Quiz

Fill in the gap

In the lab, we used a solution of to etch the copper plate.

Multiple Choice

What is the primary industrial use of ferric chloride?

FAQ

Frequently Asked Questions

: Yes, it is corrosive and can cause burns. It should be handled with appropriate personal protective equipment (PPE).
: Ferric chloride contains iron in the +3 oxidation state (Fe³⁺), while ferrous chloride contains iron in the +2 state (Fe²⁺).
: It is highly unlikely. It is an industrial and laboratory chemical, not a household product.
: A concentrated aqueous solution is typically yellow to dark orange-brown in colour.