As a new-type foreign trade service provider driven by both technology transformation and foreign trade services, HiSiaddi has established a "1+2+3+4=1" service system and can supply GLDA tetrasodium salt from multiple well-known original manufacturers. Endowed with R&D capabilities, HiSiaddi has repeatedly resolved customized product demands for GLDA tetrasodium salt by leveraging technological cooperation with factories and precise insight into market demands. Below is a case of HiSiaddi addressing customized requirements for GLDA tetrasodium salt.
If you need customized service support, please contact HiSiaddi customer service.
The cooperating client is SWISS PURE, a high-end natural daily chemical group based in Zurich, Switzerland, a top mid-to-high-end daily chemical brand in Europe. It operates a full range of organic baby care wash products, sensitive skin skincare, and natural fragrance cleaners, selling well across the EU, Switzerland, Northern Europe, Japan and South Korea. The brand strictly complies with EU ECOCERT organic certification, ECO-label environmental standards, REACH regulations, and Swiss SGS food contact grade requirements, serving as a benchmark enterprise in the global green daily chemical sector.
The client purchases 45 tons of high-purity GLDA tetrasodium salt annually, which is used as a chelating agent in organic baby shampoo, stabilizer in sensitive skin cream, and synergist in natural laundry detergent. Its core demand is exclusive customized GLDA tetrasodium salt instead of general industrial-grade products. Previously, the client contacted 3 domestic manufacturers, all of whom could only supply standard general-grade products with 40% solid content and regular chroma of 20 Pt-Co, failing to meet five exclusive requirements including ultra-high purity, low chroma, low residue, customized concentration and food contact grade. Blocked in customized procurement, the client entrusted HiSiaddi to fully advance customized R&D, process optimization, sample verification and mass production launch.
1. Ultra-high purity: Main content of GLDA tetrasodium ≥99.2% (general grade only 98.5%); free chloroacetic acid residue ≤15ppm (general grade ≤35ppm)
2. Extreme low chroma: ≤5 Pt-Co (general grade ≤20 Pt-Co), colorless and transparent liquid compatible with high-end transparent washing and care products
3. Customized concentration: Solid content 45%±0.5% (general grade only 38%-40%); high concentration cuts transportation costs and matches the client’s high-solid formulation
4. Food contact-grade impurity control: Heavy metals (lead/cadmium/mercury/arsenic) <0.05mg/kg, complying with Swiss LFGB and EU EFSA standards
5. Biodegradability: 28-day biodegradation rate ≥95% (OECD 301B), meeting ECOCERT organic certification criteria
1. Insufficient customization capacity of manufacturers: Contacted factories only produce general-grade goods without advanced decolorization, high-purity purification and precise concentration processes, unable to break through bottlenecks of low chroma and high purity
2. High risks of formulation incompatibility: The client’s transparent organic washing products will turn yellow and lose transparency if chroma exceeds limits; insufficient purity may trigger skin irritation and formulation delamination, damaging brand reputation
3. Concerns over batch stability: High-end daily chemicals require chroma deviation ≤1 Pt-Co and concentration deviation ≤0.3% between batches, while general processes suffer severe fluctuations failing to guarantee consistency
4. Barriers in compliance and certification: Full documents including Swiss SGS food contact test reports, ECOCERT organic raw material certification and REACH registration are required, yet factories lack relevant certification coordination experience
HiSiaddi set up a special GLDA customization team consisting of R&D technicians, production process specialists, testing certification engineers and quality control staff. Cooperating with Shandong Yuanlian, a leading enterprise in GLDA technology, we launched exclusive production lines and completed customized delivery in three phases with full transparent progress synchronization to the client to ensure 100% compliance with all indicators.
We collaborated with Yuanlian Chemical to restructure production processes targeting the five customized indicators and overcame three major technical hurdles:
1. Upgraded advanced decolorization process: On the basis of conventional activated carbon decolorization, two-stage ion exchange resin adsorption and ultrafiltration membrane filtration were added to remove colored impurities and trace heavy metals, reducing chroma from 20 Pt-Co to ≤5 Pt-Co to achieve complete colorless transparency
2. Optimized high-purity purification: Adjusted the ratio of glutamic acid and chloroacetic acid, controlled reaction temperature at 65-70℃ (vs. conventional 75-80℃) to reduce by-product generation; added vacuum monomer removal procedure to cut free chloroacetic acid residue from 35ppm to ≤15ppm and lift main content to 99.3%
3. Precise concentration control: Adopted low-temperature vacuum concentration (55℃, -0.08MPa) to avoid color deepening and component decomposition under high temperature, accurately stabilizing solid content at 45%±0.5% with batch deviation ≤0.3%
Three batches of 25kg small trial samples were customized, with full-item testing against client indicators for each batch:
· Main content: 99.2%-99.4%
· Chroma: 3-5 Pt-Co
· Free chloroacetic acid: 12-15ppm
· Heavy metals: <0.03mg/kg
· Biodegradation rate: 96%-97%
· Solid content: 44.8%-45.2%
Blind lab tests conducted by the client’s technical team compared customized samples with European imported GLDA products in formulation stability, transparency, skin irritation and chelating efficiency. Test results showed customized samples featured superior transparency, lower irritation and 5% higher chelating efficiency, fully compatible with transparent organic washing formulations. The client’s technical team fully approved the samples.
1. Dedicated production line activation: Coordinated Shandong Yuanlian Chemical to deploy 10-ton dedicated reaction kettles with independent scheduling, separate pipeline transportation and exclusive storage tanks to avoid cross-contamination with general-grade products and guarantee batch consistency
2. Customized quality control system: Established a three-level QC mechanism: sampling every 2 hours + full finished product inspection + 3-month sample retention. A full-item SGS test report and customized COA are issued for each batch with fully traceable data
3. Complete compliance documentation: Assisted the factory in completing Swiss SGS food contact grade testing, ECOCERT organic raw material certification and official REACH registration. Bilingual SDS (German/English), batch traceability reports and compliance declarations were provided to meet market access requirements for EU and Switzerland.
1. The first batch of 45 tons customized products were delivered smoothly with 100% qualified indicators. After arriving in Switzerland, goods passed SGS re-inspection with zero objections and zero returns, fully resolving the client’s customized procurement demands.
2. Perfect formulation compatibility: The customized GLDA was applied to organic baby shampoo and transparent sensitive skin cream, delivering high transparency, stable properties and zero skin irritation. The finished products obtained EU organic certification after launch and achieved a 25% sales growth.
3. Long-term customized partnership established: The client terminated cooperation with expensive European suppliers and signed a 5-year annual framework agreement with HiSiaddi, raising annual procurement volume to 60 tons. The client also entrusted HiSiaddi to customize supporting raw materials including food-grade chelated zinc and natural preservatives, becoming a core strategic partner of HiSiaddi in the European high-end daily chemical sector.
4. High recognition from the client: The client commented: “HiSiaddi is more than a supplier, but a technical partner who truly understands the extreme pursuit of quality and customization by high-end brands.”
Overseas mid-to-high-end clients purchasing customized GLDA tetrasodium salt are not merely buying products, but exclusive quality matching brand positioning, stable batch consistency, compliance guarantees and technical services. Restricted by generalized production mindsets and process shortcomings, domestic factories struggle to meet stringent customized demands. Supported by industrial technical resources, customized R&D capacity, full-link QC systems and international compliance experience, HiSiaddi accurately addresses customized pain points through a closed-loop workflow from process restructuring to mass production. We not only satisfy exclusive indicator requirements but also secure stable long-term supply, building irreplaceable supply chain value through deep binding with high-end clients.
If you need customized service support, please contact HiSiaddi customer service.
+86-13120989737 
info@hisiaddi.com 
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