Antioxidant Sodium Formaldehyde Sulfoxylate CAS 6035-47-8 Pressure Stable
Product Characteristics
CAS:6035-47-8/ 149-44-0
MF: NaHSO2·CH2O·2H2O
Other Name: SFS
Basic Informationrn

Model Number: HMHT0033-11rnOther Name: SFS; Rongalite C; Sodium Formaldehyde SulfoxylaternHazard symbol: R36/37/38rnMolecular formula: CH6Na2O5SrnrnFlash point: 223.8 ℃rnEINECS: 205-739-4rnCAS: 6035-47-8

Applicationsrn

Add 286 kg of zinc powder and 500 kg of water into the beating tank, and after pulping, add it into the tubular reactor, and absorb about 550 kg of SO2 to obtain zinc hydrosulfite.In addition, the formaldehyde of 698 kg 40% is added in the reactor, the above-mentioned zinc hydrosulfite aqueous solution is dripped under stirring, and gradually heats up, when the temperature rises to 95-100 ℃, add a total of 257 kg of zinc powder in batches, react under the insulation After several hours, when the content of unreacted substance is less than 1% at the end point, it is allowed to stand for precipitation, and the precipitation is transferred to the replacement kettle. After washing with clean water, add 755kg of 42% sodium hydroxide solution with stirring, react at 65°C until the free base content reaches 03%-0.5%, filter the reactant to remove impurities, and concentrate the filtrate in vacuo after clarification for 48 hours. Cool to crystallize and pulverize to get the finished product.

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Guaranteed Specifications

NAME OF INDEXES

SPECIFICATION

Assay

95.00% W/w min.

Zinc Sulphite

3.50% W/w max

Zinc Formaldehyde Bisulphate

2.50 % W/w max.

Bulk Density(*)

1.10 to 1.40 gm/ml

pH(10%)

3.5 to 5.2

Product Overview

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Product Package

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Warehousing & Transportation

-In a dry and well ventilated warehouse, keep away from ignition and heat sources.
-Store separately from oxidants, acids, alkalis, and other substances to avoid mixed storage and transportation.
-Avoid direct sunlight and damp environments to prevent moisture and deterioration.
-Packaging drums or bags should be placed on dry shelves to avoid contact with the ground
-Use specialized vehicles or transport separately from other hazardous materials to avoid mixed transportation and loading.
-Pay attention to moisture resistance, sun protection, high temperature resistance, and vibration resistance to ensure the packaging is intact.
-Equip corresponding safety facilities and first aid measures to promptly handle unexpected situations.
 
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