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CAS No.: 16731-55-8 Manufacturer Supply High Quality POTASSIUM METABISULFITE Most Professional

Name: CAS No.: 16731-55-8 Manufacturer Supply High Quality POTASSIUM METABISULFITE Most Professional
Brand: TRN TRADER
SKU: pr2503171069
Price: 9 USD
Availability: InStock

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CAS No.:

16731-55-8

Grade:

Industrial Grade

Content:

99%

Port:

Texas

Brand:

TRN TRADER

Packaging:

25kg

Price valid (until):

2025-04-17

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TRN Trader LLC

Company Type:

Manufactory

Location:

United States

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

7 days

Qualification:

Main Products:

Fertilisers,Water Traitement,Ferro Alloys,Chemicals

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Product Description
Seller Information
Inquiry History

Description

Product Detail

About Product Technical Details

CAS:	16731-55-8
MF:	K2O5S2
MW:	222.32
EINECS:	240-795-3
Product Categories:	Inorganics
Mol File:	16731-55-8.mol

POTASSIUM METABISULFITE Chemical Properties

Melting point	190°C
density	2.34 g/cm³
vapor density	2.3 (vs air)
storage temp.	Store at +5°C to +30°C.
solubility	H₂O: 0.1 M at 20 °C, clear, colorless
form	Powder/Solid
Specific Gravity	2.3
color	White to slightly yellow
PH	2.5-4.5 (25℃, 0.1M in H2O)
Odor	Odorless
PH Range	3-4.5 at 22.2 g/l at 25 °C
Water Solubility	Soluble in water. Insoluble in ethanol.
Sensitive	Air Sensitive
λmax	267nm(H2O)(lit.)
Decomposition	150°C
Merck	14,7645
EPA Substance Registry System	Disulfurous acid, potassium salt (1:2) (16731-55-8)

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ECHEMI Editorial Reference

WHITE CRYSTALLINE POWDER WITH PUNGENT ODOUR.
Potassium metabisulfite appears as a white granular or powdery solid with a sharp odor of sulfur dioxide. Decomposes at 150 to 190°C. Density 2.3 g / cm3. Contact severely irritates skin, eyes, and mucous membranes. Low toxicity. Used as a food preservative and an antioxidant.|DryPowder|Colourless crystals or white crystalline powder|WHITE CRYSTALLINE POWDER WITH PUNGENT ODOUR.
Potassium metabisulfite appears as a white granular or powdery solid with a sharp odor of sulfur dioxide. Decomposes at 150 to 190°C. Density 2.3 g / cm3. Contact severely irritates skin, eyes, and mucous membranes. Low toxicity. Used as a food preservative and an antioxidant.
White to slightly yellowish fine cryst. powder
Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods.

Basic Info

Product Name:

POTASSIUM METABISULFITE

Other Name:

dipotassiumdisulfite;dipotassiummetabisulfite;Disulfurousacid,dipotassiumsalt;potassiummetabisulphate;pyrosulfurousacid,dipotassiumsalt;POTASSIUM METABISULFITE REAGENT;POTASSIUMMETABISULFITE,CRYSTAL,FCC;POTASSIUMMETABISULFITE,CRYSTAL,NF

CAS No.:

16731-55-8

Molecular Formula:

K2O5S2

InChIKeys:

RWPGFSMJFRPDDP-UHFFFAOYSA-L

Molecular Weight:

222.32

Exact Mass:

221.84600

EC Number:

240-795-3

UNII:

65OE787Q7W

ICSC Number:

1175

UN Number:

1759

TSCA:

TSCA listed

DSSTox ID:

DTXSID1021293

Color/Form:

White to slightly yellow

HScode:

28322000

Categories:

Inorganic Salts

Characteristics

λmax:

267nm(H2O)(lit.)

PSA:

124.92000

XLogP3:

0.27220

Density:

2.34 g/cm3

Melting Point:

190°C

Water Solubility:

Soluble in water. Insoluble in ethanol.

Storage Conditions:

Keep dry and well closed.

Vapor Density:

2.3 (vs air)

Toxicity:

LD50 orally in Rabbit: 2300 mg/kg

Odor:

Odorless

PH:

2.5-4.5 (25℃, 0.1M in H2O)

Experimental Properties:

Liberates SO2 with acids; oxidizes in air to sulfate, more readily in presence of moisture|It may catch fire if too much heat develops in powdering it.

Air and Water Reactions:

Water soluble.

Reactive Group:

Sulfite and Thiosulfate Salts

Reactivity Alerts:

Strong Reducing Agent

Reactivity Profile:

POTASSIUM METABISULFITE reacts with oxidizing agents to generate heat and products that may be flammable, combustible, or otherwise reactive. Can react explosively with strong oxidizing agents. Generates gaseous sulfur dioxide in contact with acids. Aqueous solutions are acidic and corrosive.

Critical Temperature & Pressure:

Store at +5°C to +30°C.

See More POTASSIUM METABISULFITE Properties 

Hazard Identification

Classification of the substance or mixture

Serious eye damage, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H318 Causes serious eye damage
Prevention	P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help.
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. 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

Dry. Well closed. Keep in a well-ventilated room.Potassium metabisulfite should be stored in a cool, dark place.

See More POTASSIUM METABISULFITE Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Fertilisers,Water Traitement,Ferro Alloys,Chemicals

Location:
5312 State Highway 121

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
7 days

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2017

Company Certificates
- Company Registration
- US Tax Clearance 2024
- Trade conformity
- ACCREDITION
About Us:

TRN Trader Llc is a leading Chemicals company, dedicated to delivering top-notch products and services that exceed customer expectations. Founded in 2017 by Thomas R Newell, our organization has grown into a global entity with a strong presence worldwide.

Our Mission:

To provide innovative solutions, exceptional quality, and unparalleled customer service, fostering long-term relationships and driving business success.

Our Vision:

To be the preferred partner for TRN Trader Llc solutions worldwide, recognized for our commitment to excellence, sustainability, and community development.

Core Values:

•⁠ ⁠Customer Centricity
•⁠ ⁠Innovation
•⁠ ⁠Quality
•⁠ ⁠Integrity
•⁠ ⁠Teamwork
•⁠ ⁠Sustainability

What We Offer:

•⁠ ⁠Customized solutions tailored to your needs

Certifications and Awards:

•⁠ ⁠ISO [certification]

Global Reach:

With offices in [countries], we serve customers across [regions]. Our strategic partnerships and extensive network ensure efficient delivery and support.

Inquiry History

5 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Sodium Metabisulfite Food Grade	1	Jun 27, 2025
Brazil	Potassium Metabisulfite E224	1 20' Fcl	Dec 27, 2024
Burkina-faso	Métabisulfite de potassium en powder CAS 16731-55-8(E224) 99% Food grade	1.5 MT	Mar 25, 2026
India	Potassium Metabisulfite, IP grade	1.00 KG	Dec 9, 2024
Bosnia and Herzegovina	potassium metabisulfite	10 KG	Dec 19, 2023

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CAS No.: 16731-55-8 Manufacturer Supply High Quality POTASSIUM METABISULFITE Most Professional

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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More Choices Find All Products for Sale 

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