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Sulfamic acid

Sulfamic acid
Sulfamic acid structure
Chemical Name:
Sulfamic acid
Jumbo;sulfamic;BETZ 0254;ACETO ACID;Alprojet W;Sulfoamine;Scale Cleen;SulfamicAicd;Sulfamidsure;SULFAMIC ACID
Molecular Formula:
Formula Weight:
MOL File:

Sulfamic acid Properties

Melting point:
215-225 °C (dec.)(lit.)
Boiling point:
-520.47°C (estimate)
2,12 g/cm3
refractive index 
storage temp. 
Store below +30°C.
water: soluble213g/L at 20°C
Crystals or Crystalline Powder
1.2 (10g/l, H2O)
Water Solubility 
146.8 g/L (20 ºC)
CAS DataBase Reference
5329-14-6(CAS DataBase Reference)
NIST Chemistry Reference
Sulfamic acid(5329-14-6)
EPA Substance Registry System
Sulfamic acid(5329-14-6)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/38-52/53
Safety Statements  26-28-61-28A
RIDADR  UN 2967 8/PG 3
WGK Germany  1
RTECS  WO5950000
HazardClass  8
PackingGroup  III
HS Code  28111980
Hazardous Substances Data 5329-14-6(Hazardous Substances Data)
Toxicity MLD orally in rats: 1.6 g/kg (Ambrose)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P273 Avoid release to the environment.
P321 Specific treatment (see … on this label).
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.

Sulfamic acid price More Price(36)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 07401 Sulfamic acid ≥99.5% (alkalimetric) 5329-14-6 2.5kg-r $82 2018-11-22 Buy
Sigma-Aldrich 07401 Sulfamic acid ≥99.5% (alkalimetric) 5329-14-6 1kg-r $41.5 2018-11-22 Buy
Alfa Aesar 023280 Molybdenum, Quant? Test Strips 5329-14-6 1kit $240 2018-11-16 Buy
Alfa Aesar 033233 Amidosulfonic acid, ACS, 99.3-100.3% (Assay dried basis) 5329-14-6 100g $28.7 2018-11-16 Buy
Sigma-Aldrich 86040 Sulfamic acid analytical standard (for acidimetry), ACS reagent 5329-14-6 100g $30.7 2018-11-13 Buy

Sulfamic acid Chemical Properties,Uses,Production

Chemical Properties

white crystals

Chemical Properties

Sulfamic acid is a white crystalline solid.


It is used in acidimetric standard.


As standard in alkalimetry; in acid cleaning; in nitrite removal; in chlorine stabilization for use in swimming pools, cooling towers, paper mills. Solid-acid catalyst in organic synthesis. The acid or its ammonium salt has been recommended for flameproofing fabrics and wood. Metal salts are used in electroplating. Ammonium sulfamate, q.v., is also widely used as a weed killer.


ChEBI: The simplest of the sulfamic acids consisting of a single sulfur atom covalently bound by single bonds to hydroxy and amino groups and by double bonds to two oxygen atoms.


sulphamic acid: A colourless crystalline solid, NH2SO2OH, which is extremely soluble in water and normally exists as the zwitterion H3N+.SO3. It is a strong acid, readily forming sulphamate salts. It is used in electroplating, hard-water scale reremovers, herbicides, and artificial sweeteners.

General Description

A white crystalline solid. Density 2.1 g / cm3. Melting point 205°C. Combustible. Irritates skin, eyes, and mucous membranes. Low toxicity. Used to make dyes and other chemicals.

Air & Water Reactions

Moderately soluble in water [Hawley].

Reactivity Profile

Sulfamic acid reacts exothermically with bases. Aqueous solutions are acidic and corrosive.


Toxic by ingestion.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. A human skin irritant. A corrosive irritant to skin, eyes, and mucous membranes. A substance that migrates to food from packaging materials. Violent or explosive reactions with chlorine, metal nitrates + heat, metal nitrites + heat, fuming HNO3. When heated to decomposition it emits very toxic fumes of SOx and NOx. See also SULFONATES.

Potential Exposure

Sulfamic acid is used in metal and ceramic cleaning, bleaching paper pulp; and textiles metal; in acid cleaning; as a stabilizing agent for chlorine and hypochlorite in swimming pools; cooling towers; and paper mills.

First aid

Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificialrespiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.


UN2967 Sulfamic acid, Hazard class: 8; Labels: 8-Corrosive material.

Purification Methods

Crystallise NH2SO3H from water at 70o (300mL per 25g), after filtering, by cooling a little and discarding the first batch of crystals (about 2.5g) before standing in an ice-salt mixture for 20minutes. The crystals are filtered off by suction, washed with a small quantity of ice cold water, then twice with cold EtOH and finally with Et2O. Dry it in air for 1hour, then store it in a desiccator over Mg(ClO4)2 [Butler et al. Ind Eng Chem (Anal Ed) 10 690 1938]. For the preparation of primary standard material see Pure Appl Chem 25 459 1969.


The aqueous solution is a strong acid. Reacts violently with strong acids (especially fuming nitric acid), bases, chlorine. Reacts slowly with water, forming ammonium bisulfate. Incompatible with ammonia, amines, isocyanates, alkylene oxides; epichlorohydrin, oxidizers.

Sulfamic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Sulfamic acid Suppliers

Global( 287)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 1750 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21930 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20680 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32457 55
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114 CHINA 6374 58
career henan chemical co
+86-371-86658258 CHINA 20516 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 23982 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20094 58
Haihang Industry Co.,Ltd
+86 531 8582 1093 CHINA 4660 58
Spectrum Chemical Manufacturing Corp. 021-67601398,18616765336,QQ:3003443155
021-57711696 China 9692 60

View Lastest Price from Sulfamic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-24 Sulfamic acid
US $1.00 / kg 1kg 99% as request career henan chemical co

Sulfamic acid Spectrum

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