# NALCO CHEMICAL CO

NALCO CHEMICAL CO is a company headquartered in Naperville, IL, United States.

## Company overview

- **Legal name:** NALCO CHEMICAL CO
- **Classification:** Company
- **Industry (SIC):** 2890 — Miscellaneous Chemical Products
- **Headquarters:** Naperville, IL, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0000069598

## About

NALCO CHEMICAL CO is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000069598, and its reported industry is Miscellaneous Chemical Products. The retained history contains 12 filings, including 10-Q filed on 1999-11-15. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 10-Q — filed 1999-11-15 — period 1999-09-30 — 10Q
- Form 8-K — filed 1999-11-09 — period 1999-11-08 — FORM 8-K CURRENT REPORT
- Form 10-Q — filed 1999-08-13 — period 1999-06-30 — 10-Q
- Form 8-K — filed 1999-06-28 — period 1999-06-27 — FORM 8-K
- Form 10-Q — filed 1999-05-13 — period 1999-03-31 — 10-Q
- Form DEF 14A — filed 1999-03-24 — period 1999-04-29 — DEFINITIVE NOTICE AND PROXY STATEMENT
- Form SC 13G — filed 1999-02-10 — SCHEDULE 13G
- Form 10-Q — filed 1998-11-13 — period 1998-09-30 — 10Q
- Form 10-Q — filed 1998-08-13 — period 1998-06-30 — 10-Q
- Form 10-Q — filed 1998-05-15 — period 1998-03-31 — 10-Q
- Form 10-K — filed 1998-03-31 — period 1997-12-31 — FORM 10-K
- Form DEF 14A — filed 1998-03-11 — period 1998-04-16 — NOTICE & PROXY STATEMENT

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Updated: 2026-10-23T22:38:43Z

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