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ChemicalBook >> CAS DataBase List >>Ammonium thioglycolate

Ammonium thioglycolate

CAS No.
5421-46-5
Chemical Name:
Ammonium thioglycolate
Synonyms
ATG;usafmo-2;Perm salt;thiofacoa-50;Hair waving agent;(ca. 60% in Water);Ammoniumthioglykolat;Hair waving agent 95%;AMMONIUM THIOGLYCOLATE;AMMONIUM THIOGLYCOLLATE
CBNumber:
CB5445341
Molecular Formula:
C2H7NO2S
Molecular Weight:
109.15
MDL Number:
MFCD00137451
MOL File:
5421-46-5.mol
Last updated:2024-12-18 14:08:52

Ammonium thioglycolate Properties

Melting point 139-139.5 °C
Boiling point 115℃[at 101 325 Pa]
Density 1.22
vapor pressure 0.001Pa at 25℃
form Solution
Specific Gravity 1.245 (25℃)
color Clear colorless
Odor strong skunk-like odor
Viscosity 9.06mm2/s
Water Solubility Miscible
InChI InChI=1S/C2H4O2S.H3N/c3-2(4)1-5;/h5H,1H2,(H,3,4);1H3
InChIKey JYAVWXRMOOCSOD-UHFFFAOYSA-N
SMILES C([O-])(=O)CS.[NH4+]
LogP -2.99 at 20℃
CAS DataBase Reference 5421-46-5(CAS DataBase Reference)
EWG's Food Scores 2-4
FDA UNII 6P9E788VZZ
EPA Substance Registry System Acetic acid, 2-mercapto-, ammonium salt (1:1) (5421-46-5)
Cosmetics Info Ammonium Thioglycolate

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS05,GHS06
Signal word  Danger
Hazard statements  H290-H301-H317
Precautionary statements  P280-P301+P310+P330-P302+P352
Hazard Codes  T
Risk Statements  25-43
Safety Statements  36/37-45-37-24
RIDADR  2810
WGK Germany  1
RTECS  AI7525000
HazardClass  6.1(b)
PackingGroup  III
HS Code  29309090
Hazardous Substances Data 5421-46-5(Hazardous Substances Data)
Toxicity LD50 ipr-rat: 165 mg/kg JPETAB 97,349,49
NFPA 704
0
2 0

Ammonium thioglycolate price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 10010 Ammonium thioglycolate solution ~60% in H2O 5421-46-5 1l $84.9 2024-03-01 Buy
TCI Chemical A2217 Ammonium Thioglycolate (ca. 60% in Water) 5421-46-5 25g $19 2024-03-01 Buy
TCI Chemical A2217 Ammonium Thioglycolate (ca. 60% in Water) 5421-46-5 500g $35 2024-03-01 Buy
TRC A634080 AmmoniumThioglycolate 5421-46-5 2.5g $120 2021-12-16 Buy
TRC A634080 AmmoniumThioglycolate 5421-46-5 10g $140 2021-12-16 Buy
Product number Packaging Price Buy
10010 1l $84.9 Buy
A2217 25g $19 Buy
A2217 500g $35 Buy
A634080 2.5g $120 Buy
A634080 10g $140 Buy

Ammonium thioglycolate Chemical Properties,Uses,Production

Description

Ammonium thioglycolate, also known as perm salt, is the chemical compound with the formula HSCH2CO2NH4. Being the salt of a weak acid and weak base, ammonium thioglycolic acid exists in solution as an equilibrium mixture of the salt itself as well as the free carboxylic acid thioglycolic acid (HSCH2CO2H) and ammonia : HSCH2COO- + NH4+ ? HSCH2COOH + NH3.

Chemical Properties

Clear colorless solution with characteristic odor

Uses

acts as a reducing agent in permanent-waving formulations for hair treatment and in shrink-resistant treatment of wool.

Uses

Solutions of various strengths are used for hair waving and for hair removal.

Uses

Ammonium thioglycolate is contained in permanent waves solutions and causes contact dermatitis in hairdressers.

Definition

ChEBI: Ammonium thioglycolate is an organic ammonium salt having thioglycolate(1-) as the counterion. Also known as perm salt, it has use in perming hair. It has a role as a reducing agent and an allergen. It contains a thioglycolate(1-).

General Description

Colorless to faint pink liquid with a repulsive, skunk-like odor.

Air & Water Reactions

Water soluble.

Reactivity Profile

Ammonium thioglycolate may be sensitive to heat. Ammonium thioglycolate is incompatible with acids.

Health Hazard

Exposure to this compound may cause sensitivity dermatitis of scalp or hands, with edema, erythema, subcutaneous lesions, burning of skin, papular rash and itching. It may also cause hypoglycemia. Other symptoms include central nervous system depression, convulsions and dyspnea.

Fire Hazard

Flash point data for Ammonium thioglycolate are not available. Ammonium thioglycolate is combustible.

Flammability and Explosibility

Not classified

Contact allergens

This substance is contained in “basic” permanent waves solutions and causes contact dermatitis in hairdressers.

Safety Profile

Poison by intravenous and intraperitoneal routes. An allergen; can cause contact dermatitis. Emits hydrogen sulfide. See also SULFIDES. When heated to decomposition it emits very toxic NOx, SOx, and NH3.

Chemical concepts related to perms

When discussing the chemistry of perms, one should consider two chemical facts. First is the thiol-disulfide equilibrium:
RSH + R'SSR' ? R'SH + RSSR'
where R and R' are organic substituents such as methyl (-CH3), ethyl (-C2H5), or -CH2COO-.
The thiol-disulfide exchange reaction is accelerated by bases such as ammonia, because the base generates some thiolate anion (RS- ), which attacks the disulfide. Thus the ammonia plays multiple roles (and more, see below) in this application.
The second chemical fact is that polar molecules are less volatile than nonpolar ones. So the glycolate substituent makes the thiol nonvolatile and hence non-odorous. An added advantage is that the glycolate confers some solubility in water. One could almost certainly use HSCH3 and ammonia to give a perm, but there would be serious olfactory consequences.

The actual chemistry of perms

A solution containing ammonium thioglycolate contains a lot of free ammonia, which swells hair, rendering it permeable. The thioglycolic acid in the perm solution reduces the disulfide cystine bonds in the cortex of the hair. In a sense, the thioglycolate removes crosslinks. After washing, the hair is treated with a mild solution of hydrogen peroxide, which oxidizes the cysteines back to cystine. These new chemical bonds impart the structural rigidity necessary for a successful perm. The rigidification process is akin to the vulcanization of rubber, where commonly polysulfide linkages are used to crosslink the polymer chains. However, not as many disulfide bonds are reformed as there were before the permanent. As a result, the hair is weaker than before the permanent was applied and repeated applications over the same spot may eventually cause strand breakage.

Ammonium thioglycolate Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 254)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Fengmu Trading Co., Ltd. 		+8613393234347 Lyla@fengmuchem.com China 2946 58
Qingdao Zhongke Huatai Industrail Co., Ltd.
+86-532-86898076 +86-15153292017 zkhtchem@163.com China 25 58
Hebei Weibang Biotechnology Co., Ltd 		+8615531157085 abby@weibangbio.com China 8810 58
Hebei Yanxi Chemical Co., Ltd. 		+8617531190177 peter@yan-xi.com China 5857 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-13131129325 sales1@chuanghaibio.com China 5889 58
Hebei Zhuanglai Chemical Trading Co.,Ltd 		+8613343047651 admin@zlchemi.com China 3002 58
Shandong Deshang Chemical Co., Ltd. 		+86-0531-8875-2665 +8613153039501 info@deshangchem.com China 662 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21634 55
Hangzhou FandaChem Co.,Ltd. 		+8615858145714 FandaChem@Gmail.com China 9095 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29880 58

Related Qustion

View Lastest Price from Ammonium thioglycolate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ammonium thioglycolate pictures 2024-12-20 Ammonium thioglycolate
5421-46-5
 US $50.00 / kg 1kg 60% 20ton Hebei Zhuanglai Chemical Trading Co.,Ltd
Ammonium thioglycolate pictures 2024-11-11 Ammonium thioglycolate
5421-46-5
 US $10.00-7.00 / kg 1kg 99% 10 tons Shandong Deshang Chemical Co., Ltd.
?Ammonium thioglycolate pictures 2024-10-25 ?Ammonium thioglycolate
5421-46-5
 US $0.00 / KG 1KG 40% 60% 70% 200MT/Month Hebei Yanxi Chemical Co., Ltd.
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