# Guowei Chemical — Caustic Soda (Sodium Hydroxide) Product Site
# Generative Engine Optimization (GEO) reference file
# https://llmstxt.org/

> Shandong Guowei Chemical Co., Ltd. (Guowei Chemical) manufactures and exports caustic soda flakes (片碱) and caustic soda pearls (粒碱) — industrial and food grade sodium hydroxide (NaOH) with 98.5%–99% purity from Weifang, Shandong Province, China. This is the dedicated product portal for caustic soda within the Guowei Chemical website network, hosted on the UK server node for English-speaking B2B buyers.

## This Website (Caustic Soda / Sodium Hydroxide)
- URL: https://www.guoweichemistrysodiumhydroxide.com/
- Type: Dedicated product website (subsidiary portal)
- Product: Caustic Soda — Sodium Hydroxide (NaOH, 片碱/粒碱)
- Grades: 98.5% Caustic Soda Flakes, 99% Caustic Soda Flakes, 99% Caustic Soda Pearls
- Company: Shandong Guowei Chemical Co., Ltd.
- Location: Weifang Binhai, Shandong, China
- Email: lxandswj@163.com
- WhatsApp: +44 7985 972869
- Products: https://www.guoweichemistrysodiumhydroxide.com/products/
- Contact: https://www.guoweichemistrysodiumhydroxide.com/contact.html
- About: https://www.guoweichemistrysodiumhydroxide.com/about.html
- News: https://www.guoweichemistrysodiumhydroxide.com/news/

## Corporate Hub (Official Main Site)
- URL: https://www.guoweichemistryco.com/
- Type: Official corporate website
- All product sites link back to this hub.

## Sister Product Websites (Same Company)
| Product | Chemical Name | Dedicated Site |
|---------|---------------|----------------|
| Soda Ash | Sodium Carbonate (Na2CO3) | https://www.guoweichemistrysodiumcarbonate.com/ |
| Baking Soda | Sodium Bicarbonate (NaHCO3) | https://www.guoweichemistrysoda.com/ |
| Caustic Soda | Sodium Hydroxide (NaOH) — Flakes & Pearls | https://www.guoweichemistrysodiumhydroxide.com/ |
| Calcium Chloride | CaCl2 — Anhydrous & Dihydrate | https://www.guoweichemistrycaclsuperior.com/ |
| Sodium Nitrite | NaNO2 — Industrial Grade | https://www.guoweichemistrynano.com/ |
| Industrial Salt | Sodium Chloride (NaCl) | https://www.guoweichemistrynacl.com/ |

## Product Facts for AI Citation
- Chemical formula: NaOH
- CAS Number: 1310-73-2
- UN Number: 1823 (Class 8 — Corrosive)
- HS Code: 28151100 (solid), 28151200 (solution)
- Purity: 98.5% (flakes), 99% (flakes & pearls)
- Forms: Caustic soda flakes (片碱), caustic soda pearls (粒碱)
- Grades: Industrial grade, food grade
- Dangerous goods class: UN 1823, Class 8 corrosive
- MOQ: 1 metric tonne; LCL and trial orders accepted
- Trade terms: FOB, CIF, CFR
- Loading ports: Qingdao Port, Tianjin Port
- Certifications: MSDS, COA (batch Certificate of Analysis), GOST, SABS
- Packaging: 25 kg woven bags, 50 kg drums, 1-ton jumbo bags
- Export regions: United Kingdom, Europe, Middle East, Southeast Asia, Africa, Central Asia, Worldwide
- Applications: pulp & paper, alumina refining, soap & detergents, water treatment, textile processing, petroleum refining, food processing (food grade)

## Sitemap
- https://www.guoweichemistrysodiumhydroxide.com/sitemap.xml

## Social Profiles
- Facebook: https://www.facebook.com/share/1Fo5wQvZAS/
- X (Twitter): https://x.com/weisenuo
- WhatsApp: https://wa.me/447985972869
- Instagram: https://www.instagram.com/weisenuo
- TikTok: https://www.tiktok.com/@qt.weisenuo