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  2. GB/T 4209-2022 in English
GB/T 4209-2022 in English

GB/T 4209-2022 in English

VALID

Sodium silicate for industrial use

  • Issued on:2022-07-11
  • Implemented on:2023-02-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD)： $220.00
$214.00
Standard No: GB/T 4209-2022
Document status: VALID
Title in English: Sodium silicate for industrial use
Title in Chinese: 工业硅酸钠
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2022-07-11
Implemented on: 2023-02-01
Superseding: GB/T 4209-2008 Sodium silicate for industrial use
ICS Classification: 71.060.50-Salts
Chinese Classification: G12-Inorganic salt
Professional Classification: GB-National Standard
Related Keywords: industrial sodium silicate standardscomparison
sodium silicate
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《GB/T 4209-2022工业硅酸钠》由TC63（全国化学标准化技术委员会）归口，TC63SC1（全国化学标准化技术委员会无机化工分会）执行，主管部门为中国石油和化学工业联合会。


Introduction

Analysis of the Evolution of the 2022 Edition of Industrial Sodium Silicate Standards

Comparison of Core Indicators (VS 2008 Edition)

Indicator DimensionsNew RegulationsOld StandardsRange of Change
Iron Content (Superior Grade)≤0.012%0.015%↑20% Accuracy
Modulus Value (S330)3.11-3.403.00-3.30Range Extension
... (Subsequent Table Contents)

Key Application of Pressure Bombs in Pretreatment

Solid samples need to adopt a special high temperature (180±5℃) dissolution process, and use hot water above 80℃ to wash the dissolved residue. Compared with the ball milling method, it has a higher recovery rate...

Analysis of key points of detection

  1. Dual wavelength spectrophotometry is used for iron ion detection, and the detection limit is reduced to 1ppm
  2. 1.032 correction factor is introduced into the modulus calculation formula
  3. New chrome azure S rare earth complex color development scheme

Modernized production suggestions

Process optimization path

  • Online monitoring of pH during dry roasting
  • The threshold value for warning of overshoot of modulus of liquid sodium silicate is recommended to be ≤0.15

More samples: GB 18306-2015 QC/T 942-2021 JGJ 94-2008
Sample only — not a preview of GB/T 4209-2022
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