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Sodium thiosulfate 99% Colorless transparent crystal 99%

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CAS No.:

7772-98-7

Grade:

Industrial Grade

Content:

99%

Port:

QINGDAO PORT

Packaging:

25kg bags

Price valid (until):

2021-08-27

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ZHENGZHOU MAHACO INDUSTRIAL CO.,LTD

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Polyaluminium chloride PAC,Sodium thiosulphate,Ammonium Chloride,Lactic acid,Acetic Acid,LABSA 96%

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Product Description
Seller Information
Inquiry History

Description

Sodium thiosulfate sodium thiosulfate pentahydrate

Base information:

1.Another name: Sodium thiosulfate
2. Molecular formula: Na2S2O2 .5H2O
3. Molecular weight: 248.17

4.Properties :monoclinic crystal, Melting point : 40 -45oC , Relative density :1.729( 17 oC ).

5.Use:used in fixers, plating, leather, reductant, dechlorinating agent,

6.Packing:25kg , 50kg plastic woven bag, or following your demand.

Specification:

Standard Specification				Typical Data
Purity:	99	%	Min	99.10%
Water Insoluble:	0.01	%	Max	0.01%
Na2S:	0.001	%	Max	0.00%
Iron Content	0.002	%	Max	0.002
PH Value:	6.5-9.5			8.7

Physical info:

Physical state:	Solid
Odor:	Odorless.
Taste:	Saline
Color:	White
pH (1% soln/water):	PH of a 5% solution :6.0-8.4
Boiling Point:	>100°C(212°F)
Melting Point:	48°C(118.4°F)
Specific Gravity:	1.7-1.75(Water=1)
Vapor Pressure	Not applicable
Dispersion Properties	See solubility in water
Instability Temperature	Not available.
Conditions of Instability	Incompatible materials,moisture

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Basic Info

Product Name:

Sodium thiosulfate

Other Name:

Thiosulfuric acid (H2S2O3),sodium salt (1:2);Thiosulfuric acid,disodium salt;Thiosulfuric acid (H2S2O3),disodium salt;Disodium thiosulfate;Hypo;Sodium thiosulfate;Sodium thiosulfate anhydrous;Sodium thiosulfate (Na2(S2O3));Sodium oxide sulfide (Na2S2O3);Sodium thiosulphate;S-Hydril;Sodium hyposulfite;Sodothiol;Declor-It;Chlorine Control;Chlorine Cure;Disodium thiosulphate;Desilube 88;Sulfactol;Ametox;Antichlor;Sulfothiorine;MFS 50;13773-27-8;220945-47-1;1374442-73-5;2554533-79-6;2585669-88-9

CAS No.:

7772-98-7

Molecular Formula:

H2O3S2.2Na

InChIKeys:

InChIKey=UWUDCDBGGWPQHS-UHFFFAOYSA-N

Molecular Weight:

158.097

Exact Mass:

157.908417

EC Number:

231-867-5

UNII:

L0IYT1O31N

ICSC Number:

1138

DSSTox ID:

DTXSID9042417

Color/Form:

POWDER|COLORLESS MONOCLINIC CRYSTALS

HScode:

28323000

Categories:

Characteristics

PSA:

104

XLogP3:

-4.35 (calculated)

Appearance:

colourless crystals or white powder

Density:

1.667 g/cm³

Melting Point:

48 °C

Boiling Point:

100°C

Refractive Index:

INDEX OF REFRACTION: 1.489 ALPHA, 1.508 BETA, 1.536 GAMMA; OPTIC SIGN +

Water Solubility:

Solubility in water, g/100ml at 20°C: 20.9

Storage Conditions:

2-8ºC

Vapor Pressure:

Vapour pressure at 20°C: negligible

Toxicity:

Non-toxic

Explosive limit:

WHEN SODIUM NITRITE & THIOSULFATE MIXT WAS HEATED TO EVAPORATE TO DRYNESS, VIOLENT EXPLOSION OCCURRED.

See More Sodium thiosulfate Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO contact with oxidizing agents. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Separated from strong oxidants.

See More Sodium thiosulfate Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Polyaluminium chloride PAC,Sodium thiosulphate,Ammonium Chloride,Lactic acid,Acetic Acid,LABSA 96%

Location:
NO.27,CBD,ZHENGZHOU,CHINA

Payment Terms:
TT against copy of documents,D/P,L/C,TT against B/L draft before shipment

Average lead Time:
300

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2010

Certifications:
ISO 9001,NSF Certificate

Zhengzhou Mahaco Industrial Co.,Ltd ( M.H.C)
Our Facotry is located in high and new technology Chemical Development zone, Jiaozuo City, Henan Province, a joint-stock enterprise with production, export and services of chemicals, has widely adopted world-advanced equipments and management system, and our products quality is assured under the ISO9001 and ISO14001 standards, mainly specializes in developing Agriculture/Fertilizer chemicals series, Washing detergent chemicals series, Soda alkali chemicals series, Water treatment chemical series, etc.

Our main products include:
a. Agriculture/Feed chemicals series : Zinc Sulphate, Manganese sulfate etc.),
b. Washing detergent chemicals series : (LABSA, SLES, CEDA,STPP, etc.)
c. Soda alkali chemicals series : ( Caustic Soda , Sodium Sulphate Anhydrous etc.)
d. Water treatment chemical series: (Calcium hypochlorite, TCCA,SDIC, PAC- poly aluminium chloride, PFS, Aluminium sulfate etc.)
e. Adsorbent Desiccant Activated Alumina Ball
f. Raw material Calcium Aluminate ,Aluminium Hydroxide

Strategic direction
Mahaco continues to focus on customers, with a growing focus on value-added, differentiated products. We aim to build a sustainable business among the world, while looking to secure access to chemical raw-materials making in lower cost, higher growth regions.

peoples
Mahaco is proud of its workforce and recognises the contribution made by its employees. ORIENT CHEMICAL employees are valued and much emphasis is placed on training and development,we are ready to present our dedicated and professional service to each customer any time.

values
MAHACO 'Core Values' detail company beliefs, which both current and future policies are built upon, enabling all employees to work towards the common goal of maintaining our position as a global leading provider.

Manufacturing
MAHACO has manufacturing operations in many provinces and areas,with major plants rely on rich source and technicians,consummate after service and support,now its manufacturing is entering a brand-new multiplex domain.

Inquiry History

18 Inquiries

Country	Product	Purchase Quantity	Date Posted
Ecuador	Sodium Thiosulfate	250 KG	Feb 2, 2026
Egypt	Sodium Thiossulfate Anhydrous	25 KG	Jan 21, 2026
India	Sodium Thiosulphate	2 TON	Nov 22, 2024
Nigeria	Sodium thiosulfate	500 G	Jun 14, 2024
Singapore	Powder Sodium thiosulphate	1.00 20' Fcl	Jun 6, 2024
Singapore	Sodium thiosulphate	1 20' Fcl	Jun 6, 2024
India	Sodium thiosulfate	1500 KG	May 10, 2024
India	SODIUM HYPO SULPHITE	1.00 20' Fcl	Jan 5, 2024
United Arab Emirates	Sodium Thiosulphate	1.00 KG	Nov 7, 2025
India	Sodium Thiosulfate	100 MT	Mar 27, 2025
Malaysia	Sodium thiosulfate	1 MT	Feb 5, 2025
India	sodium thiosulphate	3000.00 KG	Apr 25, 2025
Pakistan	Sodium thiosulphate	1 KG	Aug 8, 2023
Russia	Collector for copper, copper-gold, and polymetallic sulfide ores	2 KG	Feb 9, 2026
Russia	Collector for copper sulfides and copper-gold ores	2 KG	Feb 9, 2026
Russia	Collector for coal enrichment	2 KG	Feb 9, 2026
Russia	Collector for copper and lead	2 KG	Feb 9, 2026
Russia	Collector for low-sulfur copper minerals associated with gold and silver	2 KG	Feb 9, 2026

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