十八酸铅

Description

lead octadecanoate · CAS 7428-48-0 · Pb(C18H35O2)2. UNII HQ5TZ3NAEI. Melting Point: 240.3 °F (USCG, 1999); Density: 1.34 to 1.4 (USCG, 1999).

Identification

CAS Registry Number	7428-48-0
PubChem CID	61258
Molecular formula	Pb(C18H35O2)2
IUPAC name	lead(2+);bis(octadecanoate)
UNII (FDA)	HQ5TZ3NAEI

Computed Descriptors

Molecular Weight	774
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	30
Exact Mass	774.50406
Monoisotopic Mass	774.50406
Topological Polar Surface Area	80.3
Heavy Atom Count	41
Formal Charge	0
Complexity	196

Physical & Chemical Properties

Melting Point	240.3 °F (USCG, 1999)
Density	1.34 to 1.4 (USCG, 1999)

Physical description & handling notes

• Powdery white solid with a slight fatty odor. Sinks in water. (USCG, 1999)
• White solid with slight fatty odor; [CAMEO]
• greater than 450 °F (USCG, 1999)
• Flash point > 450 °F

GHS Hazard Classification

Reported hazard statements	H302 (100%), H332 (100%), H360 (100%), H373 (100%), H400 (100%), H410 (100%), H351, H362

Documented Uses

• Used in high-pressure lubricants and varnish driers; [Merck Index]
• Octadecanoic acid, lead(2+) salt (2:1): ACTIVE
• 10 to 30 grams for and adult human (lead salts). (T17)
• Lead is absorbed following inhalation, oral, and dermal exposure. It is then distributed mainly to the bones and red blood cells. In the blood lead may be found bound to serum albumin or the metal-binding protein metallothionein. Organic lead is metabolized by cytochrome P-450 enzymes, whereas inorganic lead forms complexes with delta-aminolevulinic acid dehydratase. Lead is excreted mainly in the urine and faeces. (L136)

Synonyms

LEAD STEARATE; 1072-35-1; Lead distearate; Lead(II) stearate; Stabinex NC18; Listab 28ND; Lead(2+) stearate; Lead (II) stearate; Lead(II) octadecaoate; Octadecanoic acid, lead(2+) salt; Lead(2+) octadecanoate; SL 1000 (stabilizer); Lead distearate, pure; Stearic acid, lead(2+) salt; HQ5TZ3NAEI; 5002G

Frequently Asked Questions

What are the CAS number and molecular formula of lead octadecanoate?

CAS 7428-48-0; molecular formula Pb(C18H35O2)2; molecular weight — g/mol.

What other names is lead octadecanoate known by?

LEAD STEARATE, 1072-35-1, Lead distearate, Lead(II) stearate, Stabinex NC18, Listab 28ND.

Is lead octadecanoate classified as hazardous?

Hazard statements reported: H302, H332, H360, H373, H400.

What are the key physical properties of lead octadecanoate?

Melting Point: 240.3 °F (USCG, 1999); Density: 1.34 to 1.4 (USCG, 1999).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.