巯基乙酸钙三水合物

Description

calcium thioglycolate trihydrate · CAS 814-71-1 · C4H6CaO4S2. UNII J96129652N. pH: pH= 11-12.

Identification

CAS Registry Number	814-71-1
PubChem CID	13141
Molecular formula	C4H6CaO4S2
IUPAC name	calcium bis(2-sulfanylacetate)
UNII (FDA)	J96129652N

Computed Descriptors

Molecular Weight	222.3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	0
Exact Mass	221.9333419
Monoisotopic Mass	221.9333419
Topological Polar Surface Area	82.3
Heavy Atom Count	11
Formal Charge	0
Complexity	37.4

Physical & Chemical Properties

pH	pH= 11-12

Physical description & handling notes

• White solid; [HSDB] Faintly beige powder; [MSDSonline]
• White, crystalline powder
• Prismatic rod crystals. Odorless or faint mercaptan odor; somewhat astringent and fetid taste. Slowly loses H2O above 95 °C, darkens at 220 °C and partially fuses with decompn at 280-290 °C. Sol in water; very slightly sol in alcohol, chloroform; practically insol in ether, petr ether, benzene. Solns readily absorb CO2 from air, percipitating CaCO3. /Trihydrate/
• STABLE /TRIHYDRATE/
• White powder. Loses water at 100 °C. Decomposes at 250 °C. Slightly soluble in ether; insoluble in alcohol. /Trihydrate/
• THE MININUM ACTIVE CONCN OF THIOGLYCOLIC ACID & CALCIUM THIOGLYCOLATE IN DEPILATORIES IS 5% & 7% RESPECTIVELY, & THE OPTIMUM PH IS 11.8-12.

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Cosmetic ingredients (Calcium Thioglycolate) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Depilatory; Reducing

GHS Hazard Classification

Reported hazard statements	H302 (97.7%), H315 (93%), H319 (93%), H335 (90.7%), H301, H312, H317, H330

Documented Uses

• CIR ingredient: Calcium Thioglycolate
• Used in hair-removal, leather-tanning, hair-waving, and wool-shearing preparations; When used as a depilatory the minimum active concentration is 7% and the optimum pH is 11.8-12; [HSDB]
• Leather Tanning and Processing [Category: Industry]
• Dressing Hair [Category: Other]
• Depilatory; tanning leather; hair-waving preparations
• Depilatories and hair-waving preparations.

Synonyms

CALCIUM THIOGLYCOLATE; 814-71-1; Acetic acid, mercapto-, calcium salt (2:1); Ebacream; Depil; Calcium thioglycollate; Calcium mercaptoacetate; Jully; Vikor; Calcium bis(mercaptoacetate); Acetic acid, 2-mercapto-, calcium salt (2:1); Mercaptoacetic acid calcium derivative; DTXSID6061151; J96129652N; RefChem:122917; Secret Dig Hair Removal Foam

Frequently Asked Questions

What are the CAS number and molecular formula of calcium thioglycolate trihydrate?

CAS 814-71-1; molecular formula C4H6CaO4S2; molecular weight — g/mol.

What other names is calcium thioglycolate trihydrate known by?

CALCIUM THIOGLYCOLATE, 814-71-1, Acetic acid, mercapto-, calcium salt (2:1), Ebacream, Depil, Calcium thioglycollate.

What is the regulatory status of calcium thioglycolate trihydrate?

Documented regulatory listings: CIR / INCI: Cosmetic ingredients (Calcium Thioglycolate) -> CIR (Cosmetic Ingredient Review); CIR / INCI: Depilatory; Reducing.

Is calcium thioglycolate trihydrate classified as hazardous?

Hazard statements reported: H302, H315, H319, H335, H301.

What are the key physical properties of calcium thioglycolate trihydrate?

pH: pH= 11-12.

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.