FR2200218A1 - Inhibiting efflorescence of plaster articles - contg sodium cpds by adding certain salts before setting - Google Patents
Inhibiting efflorescence of plaster articles - contg sodium cpds by adding certain salts before settingInfo
- Publication number
- FR2200218A1 FR2200218A1 FR7330926A FR7330926A FR2200218A1 FR 2200218 A1 FR2200218 A1 FR 2200218A1 FR 7330926 A FR7330926 A FR 7330926A FR 7330926 A FR7330926 A FR 7330926A FR 2200218 A1 FR2200218 A1 FR 2200218A1
- Authority
- FR
- France
- Prior art keywords
- cpds
- contg
- sodium
- before setting
- adding certain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 150000003839 salts Chemical class 0.000 title abstract 4
- 238000006253 efflorescence Methods 0.000 title abstract 2
- 239000011505 plaster Substances 0.000 title abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title 1
- 230000002401 inhibitory effect Effects 0.000 title 1
- 206010037844 rash Diseases 0.000 title 1
- 229910052708 sodium Inorganic materials 0.000 title 1
- 239000011734 sodium Substances 0.000 title 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 235000011087 fumaric acid Nutrition 0.000 abstract 1
- 150000002238 fumaric acids Chemical class 0.000 abstract 1
- 235000013922 glutamic acid Nutrition 0.000 abstract 1
- 150000002307 glutamic acids Chemical class 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Cosmetics (AREA)
Abstract
Non-efflorescent plaster prodts. from Ca sulphates containing Na cpds. are made by adding to the Ca sulphate before it sets salts of HCl, HBr, HNO3 or a fluosilicic sulphamic, glutamic and/or fumaric acids, which do not contain Na+. 0.5-5.0 (0.1-1.5) wt.% of the salts are added. Alternatively instead of the salt, equimolar quantities of acid and a neutralising agent may be added.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722246345 DE2246345C3 (en) | 1972-09-21 | 1972-09-21 | Process for the production of practically non-blooming gypsum products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2200218A1 true FR2200218A1 (en) | 1974-04-19 |
Family
ID=5856958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7330926A Withdrawn FR2200218A1 (en) | 1972-09-21 | 1973-08-27 | Inhibiting efflorescence of plaster articles - contg sodium cpds by adding certain salts before setting |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE805068A (en) |
| DE (1) | DE2246345C3 (en) |
| FR (1) | FR2200218A1 (en) |
| NL (1) | NL170944C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2390394A1 (en) * | 1977-05-12 | 1978-12-08 | Hoechst Ag | Preventing discoloration of plaster joints or coatings - using a reducing agent either as additive or as a paint |
| FR2413338A1 (en) * | 1977-12-09 | 1979-07-27 | Ugine Kuhlmann | GYPSUM FOR PREPARATION OF ANHYDRITE BINDERS |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4126599A (en) * | 1976-02-26 | 1978-11-21 | Mizusawa Kagaku Kogyo Kabushiki Kaisha | Water-resistant shaped structure of gypsum and process for production thereof |
| DE2747921A1 (en) * | 1977-10-26 | 1979-05-03 | Hoechst Ag | PROCESS FOR THE PREPARATION OF Aqueous CALCIUM SULFATE SEMI-HYDRATE SUSPENSIONS AND THE USE THEREOF |
-
1972
- 1972-09-21 DE DE19722246345 patent/DE2246345C3/en not_active Expired
-
1973
- 1973-08-27 FR FR7330926A patent/FR2200218A1/en not_active Withdrawn
- 1973-09-06 NL NL7312273A patent/NL170944C/en not_active IP Right Cessation
- 1973-09-20 BE BE135828A patent/BE805068A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2390394A1 (en) * | 1977-05-12 | 1978-12-08 | Hoechst Ag | Preventing discoloration of plaster joints or coatings - using a reducing agent either as additive or as a paint |
| FR2413338A1 (en) * | 1977-12-09 | 1979-07-27 | Ugine Kuhlmann | GYPSUM FOR PREPARATION OF ANHYDRITE BINDERS |
Also Published As
| Publication number | Publication date |
|---|---|
| BE805068A (en) | 1974-01-16 |
| NL7312273A (en) | 1974-03-25 |
| DE2246345C3 (en) | 1979-09-20 |
| NL170944C (en) | 1983-01-17 |
| NL170944B (en) | 1982-08-16 |
| DE2246345B2 (en) | 1977-06-08 |
| DE2246345A1 (en) | 1974-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |