Agent Name

Nitrohydrochloric acid

Alternative Name

Aqua regia

CAS Number

8007-56-5

Major Category

Toxic Gases & Vapors

Synonyms

Aqua regia; [ChemIDplus] Nitromuriatic acid; Chloronitrous acid; Chloroazotic acid; [Merck Index] Met-Etch; [CAMEO] UN1798

Category

Acids, Inorganic

Description

Yellow fuming liquid with a suffocating odor; [Merck Index] Red, yellow, or gold fuming liquid; [University of Oxford MSDS]

Sources/Uses

"Mixture of hydrochloric & nitric acids." [ChemIDplus]

Comments

Contains nitrosyl chloride and free chlorine; Corrosive; [Merck Index] A strong oxidizing agent with known catalytic activity; Reacts with air; Causes burns; [CAMEO] Causes burns and severe respiratory tract irritation; Highly toxic by ingestion and inhalation; [University of Oxford MSDS] See "Nitric acid" and "Hydrogen chloride."

Exposure Assessment
Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: