ChemicalsSodium Chlorate (NaClO₃)
Strong oxidiser for chlorine dioxide in pulp bleaching and water treatment, made by Hunan Hengguang Technology and sold under the GFTx Chemicals brand.
- CAS 7775-09-9
- UN 1495 · class 5.1
Sulfamic Acid (H₃NSO₃)
Sulfamic acid from Hengguang's sulfur-chemical base in Hengyang, Hunan, China — a stable, non-volatile solid acid that is easy to handle, for descaling and industrial cleaning, water and pool disinfection, pulp and paper, textiles and metal treatment. Supplied worldwide by GFTx under the GFTx Chemicals brand, with the certificate of analysis on request.
CAS 5329-14-6UN 2967 · class 8Form Crystalline solidOrigin Hunan, China
Specification
Identity
| Property | Value |
|---|---|
| Chemical name | Sulfamic acid (amidosulfonic acid) |
| Formula | H₃NSO₃ (H₂NSO₃H) |
| CAS number | 5329-14-6 |
| EC number | 226-218-8 |
| Molar mass | 97.09 g/mol |
| Appearance | White crystalline solid |
Physical properties (literature values)
| Property | Value |
|---|---|
| Density | ≈ 2.15 g/cm³ |
| Melting point | ≈ 205 °C, with decomposition |
| Solubility in water | Soluble |
Hazard classification (CLP)
| Property | Value |
|---|---|
| Signal word | Warning |
| H315 | Causes skin irritation |
| H319 | Causes serious eye irritation |
| H412 | Harmful to aquatic life with long lasting effects |
Transport
| Property | Value |
|---|---|
| UN number | UN 2967 |
| Proper shipping name | Sulphamic acid |
| Class | 8 (corrosive substance) |
| Packing group | III |
Supply
| Property | Value |
|---|---|
| Brand | GFTx Chemicals |
| Producer | Hunan Hengguang Technology Co., Ltd., Hengyang base, Hunan, China |
| Packing | On request |
| Documents | Certificate of analysis (COA) and safety data sheet (SDS) on request |
Identity, hazard and transport data of sulfamic acid as supplied by GFTx Chemicals; physical properties are literature values. Purity and impurity values are stated in the producer's certificate of analysis (COA), available on request.
Producer
- Hunan Hengguang Technology Co., Ltd. — one of China's key sulfamic acid manufacturers, listed on the Shenzhen Stock Exchange (ChiNext, 301118.SZ)
- Made at the Hengyang base, Hengguang's sulfur-chemical platform built on a 300,000 t/a pyrite-to-sulfuric-acid plant; the sulfamic acid line was commissioned in 2018
At the producer
Safety & compliance
- Irritant solid acid — causes skin and serious eye irritation; wear gloves and eye protection as named in the safety data sheet
- Dangerous goods — shipped as UN 2967, class 8, packing group III
- Documents — safety data sheet (SDS) in the language of the destination country, and the certificate of analysis (COA) on request
Applications
Descaling & industrial cleaning
Water & pool disinfection
Pulp & paper (bleaching aid, de-inking)
Dyeing & textiles
Electroplating & metal treatment
Chemical intermediate (e.g. saccharin)
Frequently asked questions
For descaling and industrial cleaning of boilers, cooling systems, heat exchangers and pipelines; for chloramine disinfection of swimming-pool and supply water; as a bleaching aid and de-inking agent in pulp and paper; in dyeing and textiles; in electroplating and metal treatment; and as a chemical intermediate, for example for saccharin.
It is a dry, stable and non-volatile crystalline solid, so it is easy to transport, store and dose, and its producer describes it as a low-corrosion acid.
Hunan Hengguang Technology, one of China's key sulfamic acid manufacturers, makes it at its sulfur-chemical base in Hengyang, Hunan, where the sulfamic acid line has run since 2018. GFTx sells it worldwide under the GFTx Chemicals brand.
For transport it is UN 2967, sulphamic acid, class 8 (corrosive substance), packing group III. Under the EU CLP regulation it carries the signal word Warning with H315 Causes skin irritation, H319 Causes serious eye irritation and H412 Harmful to aquatic life with long lasting effects.
Packing is agreed per order: tell us the quantity and destination and we will quote. The certificate of analysis and the safety data sheet are available on request.
Documents
Related
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