What certifications does the manufacturer hold?

The manufacturer holds ISO9001:2015 certification and conducts 100% product inspection.

What is the physical appearance of the product?

It appears as yellow flakes or slightly light yellow amorphous crystals/powder.

Nahs Sodium Hydrosulfide Yellow Flakes 70%

Name: Nahs Sodium Hydrosulfide Yellow Flakes 70%
Brand: Gansu Jinshi Chemical Co., Ltd.
SKU: 2191272165

Gansu, ChinaGansu Jinshi Chemical Co., Ltd.

US$600.00

20 Tons

Sample price:US$10.00/kg.Request sample

Product profile

Customization

Available

CAS No.

16721-80-5

Formula

Na2s

Model NO.

industry grade

EINECS

15-211-5

Classification

Sodium Sulphide

Appearance

Flake

Grade Standard

Industrial Grade

Solubleness

Soluble Alkali

Ionization Capacity

Weak Alkali

Quality

Qualified

Usage

Industrial Alkali, Leather

Colour

Yellow Falkes

HS

28331100

Melting Point

1180°

Transport Package

25kg Bag

Specification

70%MIN

Trademark

jinshi

Origin

Gansu

HS Code

28331100

Production Capacity

24000t/Year

Key features

High Purity Industrial Grade: NaHS content 70% min, Fe max 0.003%, meets GB 23937-2009 standard.

Versatile Industrial Application: Used in dyeing, leather tanning, mining flotation, and wastewater treatment.

Flexible Customization Options: Supports customization from samples, designs, and full customization.

ISO 9001 Certified Manufacturer: Established in 2006 with ISO9001:2015 certification and 100% inspection.

Low Minimum Order Quantity: Flexible MOQ starts at just 1 kg for easy trial and bulk orders.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season.

Trusted Supplier: Cooperates with Fortune 500 companies with 80-100% repeat buyer rate.

Multiple Payment Terms: Accepts LC, T/T, and D/P with FOB, CIF, CFR, and EXW Incoterms.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Years of Export Experience

Gansu Jinshi Chemical Co., Ltd.

Gansu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Tianjin Port; Qingdao Port;Average Response Time: ≤11.29h

AI-Powered supplier vetting

SummaryThe supplier is identified as a manufacturing factory with business activities covering pigment manufacturing and sales, chemical products, technical services, parts processing, metal-related manufacturing, and goods import/export. It holds ISO9001:2015, ISO45001:2018, ISO14001, and ISO50001 certifications. Service processes for supplier assessment, corrective and preventive actions, and customer complaints are documented and followed, while stated lead times are within 15 working days in both peak and off-season. The supplier offers ODM and multiple customization modes but does not provide 3D software design, has no new products reported in the past year, and has one R&D engineer. It has inventory capability and has collaborated with Fortune 500 companies, but lacks overseas agents or branches, overseas warehousing, and overseas showrooms. Manufacturing capacity is weakened by the absence of a valid contract with affiliated subcontractors. Financial credibility cannot be determined from the provided...

Supplier typeThe supplier is explicitly identified as a factory, with business scopes including manufacturing, pigment manufacturing and sales, chemical products, parts processing, metal materials, technical services, and import/export activities. This supports classification as a diversified manufacturing supplier.

CertificationsThe supplier reports holding ISO9001:2015, ISO45001:2018, ISO14001, and ISO50001 certificates. These stated management-system certifications provide explicit evidence of formal quality, occupational safety, environmental, and energy-management systems.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaints, and its service assessment procedure is also documented and implemented. It can quote under FOB, CIF, CFR, and EXW terms and reports lead times within 15 working days in both peak and off-season, but it has no overseas agents or branches and offers services in zero stated countries.

R&D capabilityThe supplier provides ODM services and reports one R&D engineer, but it had no new products in the past year, has no available SDK, and does not provide 3D software design services. The evidence indicates some R&D-related service capability but limited demonstrated recent innovation output.

Production capacityThe supplier is a manufacturing factory with stated pigment, parts, metal-material, and related production activities, and it reports inventory capability and quality assurance in quality-control processes. However, it explicitly lacks a valid contract between the factory and affiliated subcontractors, creating a documented weakness in manufacturing-capacity governance.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, flexible customization, and ODM services. This demonstrates broad customization coverage, although the supplier does not provide 3D software design services.

Client casesThe supplier reports collaboration with Fortune 500 companies and a repeat-buyer preference rate of 80%~100%. These statements provide explicit evidence of notable customer experience and repeat-business performance, although no customer names or project details are supplied.