Agent Name

Silver protein

CAS Number

9015-51-4

Major Category

Metals

Synonyms

Mild silver protein; Argentoproteinum; Argentum vitellinum; Argisal; Argyn; Argyrol; Cargentos; Lunargen; Mild Protargin; Mucleinate mild; Protargin mild; Protargol; Silver nucleinate; Silver protein complexes; Silver protein, mild; Silver proteinate; Silvol; Solargentum; [ChemIDplus] Protargin; Silver nucleate; [Merck Index] Silver protein for histology, strong; [Alfa Aesar MSDS]

Category

Organic Compounds, Metal Salts

Description

Mild form: Brown, dark brown, or almost black solid; Strong form: Pale yellowish-orange to brownish-black solid; Both forms are odorless, somewhat hygroscopic, and soluble in water; [Merck Index] Pale yellow or brown odorless powder; [Alfa Aesar MSDS]

Sources/Uses

A mixture of colloidal silver and proteins used to stain neurons; it is also used as a contrast medium for electron microscopy and an antiseptic; [Merck Index] "Used in ophthalmic solution and tissue stains." [ChemIDplus]

Comments

Mild form contains approximately 20% silver; Strong form contains approximately 8% silver; [Merck Index] May cause irritation; [Alfa Aesar MSDS] See "Silver."

Exposure Assessment
TLV (ACGIH)

0.01 mg/m3, as Ag (compounds)

PEL (OSHA)

0.01 mg/m3, as Ag

MAK

0.01 mg/m3, inhalable fraction (salts), as Ag

IDLH (NIOSH)

10 mg/m3, as Ag

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: